TopTool

What do you want to get done today?

Pick a task, drop in your file, done. Shrink a photo so it actually sends, merge two PDFs into one, pull a song out of a video, or work out a percentage — around 120 everyday tools, free, no sign-up, and most of them run right inside your browser.

Start with what you want to do

No menus to learn. Tell us the task in plain words and we'll open the right tool.

Most tool sites make you already know the name of the thing you need. This one doesn't. You almost never wake up wanting to "transcode" or "batch process" anything — you want the photo small enough to email, the two PDFs joined up, the song saved off a video your nephew sent. So that's how the tasks below are written: the way you'd say them out loud. Pick the line that sounds like your afternoon and the matching tool opens with the boxes already where you'd expect them. Each one does a single job and tells you, in everyday language, what to drop in and what you'll get back — no glossary, no guessing which of nine buttons is the right one.

I want to shrink a photo so it'll send

That holiday snap straight off your phone is often too big for an email or an upload box. Drop it in, pick a smaller size, and download a lighter copy in seconds. The picture still looks fine — it just stops bouncing back as 'attachment too large'.

I want to combine a few PDFs into one

Drag in two or more PDFs, put them in the order you want, and download a single tidy file. It's the easy way to staple a receipt to a form, or join scanned pages back into one document before you send it on.

I want the song or sound from a video

Got an MP4 and you only need the audio — a lecture, a track, a voice clip someone messaged you? Pull out a clean MP3 in a few seconds and keep just the part you wanted. No video editor to install and nothing to figure out.

I want to turn my notes into a proper PDF

Paste or upload plain Markdown notes and get back a neat PDF with real headings, lists and spacing — the kind of thing you can hand in or attach to an email without it looking like a text file. One click, no word processor required.

I want to work out a percentage

Tips, a sale discount, the tax on a price, 'what percent of', a percentage change — the everyday sums you'd usually reach for your phone calculator and a bit of squinting for. Type the numbers into one box and read the answer straight off.

I want to know my monthly loan payment

Before you sign anything, see what it actually costs. Enter the amount, the interest rate and the term, and get the monthly payment, the total interest over the whole loan, and a month-by-month breakdown of where your money goes.

How it works — three steps, no account

The same simple rhythm for every tool on the site.

There's nothing to set up and nothing to learn before you start. Every tool here follows the same three beats, whether you're shrinking a picture, joining PDFs or splitting a dinner bill: say what you want, hand over the file or the numbers, and take the result. You won't be asked to make an account, confirm an email, or 'start your free trial' partway through — the thing you came to do is the thing you can actually finish. If a tool needs anything from you, it asks in plain words on the page, before you commit, not in a pop-up afterwards. Most of the work happens right on your own computer, so it's quick and there's nothing left behind once you close the tab.

  1. 1

    1. Pick your task

    Choose a task card or browse a category. Each tool does one job and says plainly, in everyday words, what it needs from you and what you'll get back — no jargon to decode first.

  2. 2

    2. Add your file or numbers

    Drop a file in, paste some text, or type a few values. For anything that changes a file, you'll usually see a preview so you can check it looks right before you go ahead.

  3. 3

    3. Download the result

    Press go and grab your finished file or answer. No watermark, no email gate, no 'upgrade to download' wall blocking the last step. Take what you came for and close the tab.

Five everyday corners of the toolbox

Around 120 tools, grouped the way you'd actually think about them.

You don't need all 120 tools — you need the handful that match whatever's in front of you this week. So instead of one endless A-to-Z list, everything is sorted into five plain-language corners you can scan in a second: the paperwork pile, the audio jobs, the video jobs, the quick sums, and the colour bits. Each corner gathers the tools you'd naturally expect to find together, named for what they do rather than how they work under the hood. Wander into the one that fits your task and you'll find a small, sensible set of options instead of a wall of icons. It's the difference between a tidy drawer and a junk drawer — same contents, far less rummaging.

In focus: getting a PDF small enough to email

The single most common PDF headache — 'attachment too large' — and the two-tool fix that clears it.

By far the most common reason people reach for a PDF tool isn't anything fancy — it's the email that won't send. You scan a few pages, or join a couple of documents, and suddenly the file is too big for your mail to accept and it bounces straight back. So this is the one PDF job worth walking through end to end, because it's the one almost everyone hits.

The fix is two small tools used back to back. First, Merge PDF puts everything into a single, ordered file — handy when a form, a cover note and a scanned receipt all need to go in one go instead of three separate attachments. Then Compress PDF squeezes that file down, mostly by tidying up the heavy scanned images inside it, until it slips comfortably under the size limit your email is complaining about. The words stay sharp; it's the bulky picture data that gets trimmed. Most people go from 'too large to send' to 'sent' in under a minute, without printing, re-scanning or signing up for anything.

Because these page-level steps run right inside your browser, the document you're sending — a contract, a payslip, a medical form — never gets uploaded anywhere on the way. You merge, you compress, you attach, and the only copy that travels is the one you deliberately email.

Which file format for what I'm doing?

A plain-English cheat sheet so you can pick without second-guessing.

The hardest part of most everyday file jobs isn't the converting — it's knowing which format to convert to in the first place. The names all look interchangeable until you pick the wrong one and the file won't open, or comes out enormous, or loses something on the way. This little cheat sheet skips the technical detail and just matches a real situation — emailing a song, sending a form, posting a photo — to the format that quietly works, and the tool that gets you there.

What you're trying to doPick this formatBecauseTool
Send a form or report that must look the same for everyonePDFIt locks the layout and fonts so nothing shifts on the other person's screen, and it opens on any device without Worddocx-to-pdf
Email or save a song from a video, kept smallMP3Plays on every phone, laptop and speaker, and the file stays tiny enough to attach or store easilymp4-to-mp3
Keep a recording at full quality to edit laterWAV or FLACNothing is thrown away, so the audio stays crisp for editing — WAV is plain, FLAC is the same quality but smallermp3-to-wav
Put a photo online or attach it without it bouncingJPGThe everyday photo format — small file, looks great for snapshots, and accepted by basically every website and emailimage-compress
Open a spreadsheet export in any programCSVPlain rows and columns that any spreadsheet opens instantly, with no special software neededcsv-to-json
Hand a colour to a website or design toolHEXIt's the code web pages and most design apps expect, so the shade you picked shows up exactly rightcolor-converter

Popular this week

The tools people open most, ready to launch.

These are the tools getting opened the most right now — a decent snapshot of the small, recurring jobs that send people looking in the first place. None of them needs a manual: each does one thing, says what it wants on the page, and hands back a result you can use straight away. If you're not sure where to start, this is a fair shortlist of the everyday tasks most people turn up for, from saving audio and tidying spreadsheets to a quick bit of date maths.

Your files stay on your computer

Here's the plain version, with no technical talk: for most of the tools here, your file never gets sent anywhere. When you shrink a photo, split a PDF or convert an audio clip, the whole thing happens right there on your own computer, inside the page you've got open. It works on the office wifi, on hotel wifi, on a train with one bar of signal — and nothing is uploaded to us along the way. There's no copy of your payslip, your contract or your family photos sitting on someone else's server waiting to be forgotten about.

That's reassuring for the obvious reason — a private document stays private — but it's also just quicker. Because the file doesn't have to travel up to a server and back down again, the result usually pops out almost the moment you press go, instead of sitting on a 'please wait, uploading…' bar.

A few of the heaviest jobs — some large video conversions, for instance — are the exception and do need a bit of outside help. Where that's true, the tool says so plainly on the page before you start, so you're never surprised. The simple way to think about it: pictures, PDFs, calculators, colour and most audio all stay on your machine, and anything that doesn't will tell you first. Open the tab, do your one thing, close it — and the only copy of your file is the one you chose to keep.

Guides for the tasks people Google

Short, practical how-tos that go with the tools.

All guides →

Often the tool is the easy bit and the real question is which option do I pick, and why won't this thing just send. These guides walk through the everyday tasks people actually search for — getting a file small enough to email, choosing between two formats, sorting out a percentage — written to be read in a couple of minutes, with the matching tool one click away at the end. No filler, no fifteen-minute scroll before the answer.

A toolbox that adds up

~120

everyday tools across PDF, audio, video, calculators and colour

5

plain-language categories — no jargon, no learning curve

$0

to use, with no sign-up, no watermark and no page limits

In-browser

for most tasks, so your files stay on your own computer

What do you want to get done?

Pick a task and go — no account, no upload for in-browser tools, no fuss.

Shrink a photo

All everyday tools

DocumentFree

Markdown to PDF

Convert Markdown (.md) files to nicely-styled PDF documents — free online, no upload.

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DocumentFree

Markdown to HTML

Convert Markdown (.md) files into a styled, standalone HTML document — free online, no upload.

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DocumentFree

HTML to Markdown

Convert HTML files into clean Markdown (.md) — free online, no upload.

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DocumentFree

Markdown to Text

Strip Markdown formatting and download a plain-text (.txt) file — free online, no upload.

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DocumentFree

Text to Markdown

Wrap a plain-text (.txt) file in a Markdown document — free online, no upload.

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DocumentFree

CSV to JSON

Convert CSV files to pretty-printed JSON — free online, no upload.

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DocumentFree

JSON to CSV

Convert a JSON array (or object) into a CSV spreadsheet — free online, no upload.

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DocumentFree

CSV to YAML

Convert CSV files to YAML — free online, no upload.

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DocumentFree

YAML to CSV

Convert a YAML list into a CSV spreadsheet — free online, no upload.

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DocumentFree

JSON to YAML

Convert JSON to YAML — free online, no upload.

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DocumentFree

YAML to JSON

Convert YAML to pretty-printed JSON — free online, no upload.

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DocumentFree

JSON to XML

Convert JSON to XML — free online, no upload.

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DocumentFree

XML to JSON

Convert XML to pretty-printed JSON — free online, no upload.

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DocumentFree

Word (DOCX) to Markdown

Convert a Word (.docx) document into clean Markdown — free online, no upload.

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DocumentFree

Word (DOCX) to Text

Extract the plain text from a Word (.docx) document — free online, no upload.

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DocumentFree

Word (DOCX) to HTML

Convert a Word (.docx) document into a styled HTML page — free online, no upload.

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DocumentFree

Images to PDF

Combine PNG / JPG / WebP images into a single PDF — one image per page, in your browser.

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DocumentFree

PDF to Images

Extract every page of a PDF as a PNG image — bundled in a single ZIP, in your browser.

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DocumentFree

PDF to PNG

Render every page of a PDF as a PNG image — lossless, packed in a ZIP, runs online.

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DocumentFree

PDF to JPG

Render every page of a PDF as a JPG — tunable quality, packed in a ZIP, runs online.

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DocumentFree

HTML to PDF

Convert HTML files to nicely-paginated PDF documents — free online, no upload.

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DocumentFree

TXT to PDF

Convert plain-text (.txt) files to a clean, paginated PDF — free online, no upload.

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DocumentFree

PDF to TXT

Extract the text layer from a PDF as a plain-text (.txt) file — free online, no upload.

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DocumentFree

TXT to HTML

Wrap a plain-text file in a styled, standalone HTML document — free online, no upload.

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DocumentFree

CSV to HTML Table

Convert a CSV spreadsheet into a styled HTML table — free online, no upload.

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DocumentFree

JSON to HTML

Pretty-print JSON inside a styled, syntax-highlighted HTML document — free online, no upload.

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DocumentFree

CSV to Markdown Table

Convert a CSV spreadsheet into a GitHub-flavored Markdown table — free online, no upload.

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DocumentFree

CSV to TSV

Convert a comma-separated file to tab-separated (TSV) — free online, no upload.

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DocumentFree

TSV to CSV

Convert a tab-separated file to standard CSV — free online, no upload.

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DocumentFree

YAML to XML

Convert YAML to a well-formed XML document — free online, no upload.

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DocumentFree

XML to YAML

Convert an XML document to clean, readable YAML — free online, no upload.

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DocumentFree

CSV to XML

Convert a CSV spreadsheet into a well-formed XML document — free online, no upload.

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DocumentFree

XLSX to CSV

Convert an Excel spreadsheet (.xlsx / .xls) to a CSV file — free online, no upload.

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DocumentFree

XLSX to JSON

Convert an Excel spreadsheet (.xlsx / .xls) to pretty-printed JSON — free online, no upload.

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DocumentFree

CSV to XLSX

Convert a CSV file into an Excel .xlsx workbook — free online, no upload.

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DocumentFree

JSON to XLSX

Convert a JSON file into an Excel .xlsx workbook — free online, no upload.

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DocumentFree

Merge PDF

Combine multiple PDF files into a single PDF — in the order you select them, all in your browser.

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DocumentFree

Split PDF

Split a PDF into one file per page, or by custom page ranges — bundled in a ZIP, in your browser.

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DocumentFree

Rotate PDF Pages

Rotate selected pages of a PDF by 90, 180 or 270 degrees — in your browser.

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DocumentFree

Delete PDF Pages

Remove specific pages or ranges from a PDF — in your browser, with no upload.

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DocumentFree

Extract PDF Pages

Pull selected pages out of a PDF into a new, smaller PDF — entirely in your browser.

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DocumentFree

Reorder PDF Pages

Rearrange the pages of a PDF into any order — all in your browser, no upload.

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DocumentFree

Add Watermark to PDF

Stamp a text watermark across every page of a PDF — in your browser, no upload.

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DocumentFree

Add Page Numbers to PDF

Stamp page numbers onto a PDF — pick position, format and start number, all in your browser.

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DocumentFree

Compress PDF

Shrink a PDF by rasterizing pages to JPEG at a chosen DPI — all in your browser.

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DocumentFree

Unlock PDF

Strip permission restrictions (print/copy/edit) from a PDF — in your browser, no upload.

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DocumentFree

Edit PDF Metadata

Update a PDF's Title, Author, Subject and Keywords — all in your browser.

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DocumentFree

Sign PDF

Add a typed signature block to a PDF locally in your browser. No upload required.

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DocumentFree

Edit PDF

Edit a PDF by adding text to any page locally in your browser. No upload required.

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DocumentFree

Word (DOCX) to PDF

Convert a Word (.docx) document to a styled PDF — free, online, no upload.

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DocumentFree

PDF to Word (DOCX)

Extract text from a PDF and re-package it as an editable Word .docx — free, online, no upload.

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DocumentFree

TOML to JSON

Convert TOML configuration files to JSON — free online, no upload.

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DocumentFree

JSON to TOML

Convert JSON files to TOML configuration format — free online, no upload.

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DocumentFree

MarkItDown

Convert PDFs, Office files, web pages, data files, ebooks, archives and images into clean Markdown.

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AudioFree

MP3 to WAV

Convert MP3 audio to uncompressed WAV — free online, no upload.

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AudioFree

WAV to MP3

Convert WAV audio to MP3 with selectable VBR quality — free online, no upload.

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AudioFree

MP3 to OGG

Convert MP3 audio to Ogg Vorbis — free online, no upload.

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AudioFree

OGG to MP3

Convert Ogg Vorbis audio to MP3 with selectable quality — free online, no upload.

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AudioFree

MP3 to FLAC

Convert MP3 audio to FLAC (lossless) — free online, no upload.

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AudioFree

FLAC to MP3

Convert FLAC lossless audio to MP3 — free online, no upload.

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AudioFree

MP3 to AAC

Convert MP3 audio to AAC with selectable bitrate — free online, no upload.

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AudioFree

AAC to MP3

Convert AAC or M4A audio to MP3 — free online, no upload.

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AudioFree

MP3 to M4A

Convert MP3 audio to M4A (AAC in MP4 container) — free online, no upload.

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AudioFree

M4A to MP3

Convert M4A audio (AAC in MP4) to MP3 — free online, no upload.

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AudioFree

WAV to FLAC

Convert WAV audio to FLAC (lossless, smaller files) — free online, no upload.

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AudioFree

FLAC to WAV

Convert FLAC lossless audio to uncompressed WAV — free online, no upload.

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AudioFree

MP3 to Opus

Convert MP3 audio to Opus with selectable bitrate — free online, no upload.

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AudioFree

WAV to OGG

Convert WAV audio to Ogg Vorbis — free online, no upload.

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AudioFree

OGG to WAV

Convert Ogg Vorbis audio to uncompressed WAV — free online, no upload.

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AudioFree

FLAC to OGG

Convert FLAC lossless audio to Ogg Vorbis — free online, no upload.

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AudioFree

AAC to WAV

Convert AAC audio (.aac, .m4a) to uncompressed WAV — free online, no upload.

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AudioFree

M4A to WAV

Convert M4A audio to uncompressed WAV — free online, no upload.

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AudioFree

Audio Trimmer

Cut a clip from an audio file — MP3, WAV, OGG, FLAC, M4A, AAC.

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VideoFree

MP4 to WebM

Convert MP4 video to WebM (VP9 + Opus) — free, runs entirely in your browser.

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VideoFree

WebM to MP4

Convert WebM video to MP4 (H.264 + AAC) — free online, no upload.

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VideoFree

MP4 to MKV

Remux MP4 to Matroska (MKV) — fast, lossless, no re-encoding.

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VideoFree

MKV to MP4

Convert MKV (Matroska) video to MP4 (H.264 + AAC) — free, runs in your browser.

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VideoFree

MOV to MP4

Convert MOV (QuickTime) video to MP4 (H.264 + AAC) — free online.

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VideoFree

MP4 to MOV

Convert MP4 video to MOV (QuickTime) — free online, no upload.

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VideoFree

AVI to MP4

Convert AVI video to MP4 (H.264 + AAC) — free, runs entirely in your browser.

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VideoFree

MP4 to GIF

Convert MP4 video to an animated GIF — free online, with a tuned palette.

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VideoFree

MP4 to MP3

Extract the audio track from an MP4 video as an MP3 file — free online.

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VideoFree

MP4 to WAV

Extract the audio track from an MP4 video as an uncompressed WAV file.

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VideoFree

WEBM to MP3

Extract the audio track from a WEBM video as an MP3 file — free online.

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VideoFree

MOV to MP3

Extract the audio track from a MOV video as an MP3 file — free online.

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VideoFree

AVI to MP3

Extract the audio track from an AVI video as an MP3 file — free online.

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VideoFree

MP4 to AAC

Extract the AAC audio track from an MP4 video — free online, no re-encode.

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VideoFree

MP4 to FLAC

Extract the audio track from an MP4 video as a FLAC file — free online.

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VideoFree

Video Trimmer

Cut a clip from a video file — MP4, WEBM, MKV, MOV, AVI — in your browser.

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VideoFree

Compress Video

Shrink a video file by re-encoding to H.264 with a quality preset — free, in-browser.

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DocumentDivider

File Divider

Split any file into smaller downloadable parts in your browser, with no upload.

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AudioDivider

Audio Divider

Split MP3, WAV, M4A, AAC, OGG, FLAC, and OPUS audio into clips in your browser.

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VideoDivider

Video Divider

Split MP4, WebM, MOV, MKV, and AVI videos into clips in your browser.

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VideoDownloader

Online Video Downloader

Download public videos from YouTube, Instagram, TikTok, Facebook, Twitch, Kick, X/Twitter, Vimeo, Reddit, and more without storing files on Toolsly.

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VideoDownloader

YouTube Shorts Downloader

Find direct video and audio links for public YouTube Shorts without storing files on Toolsly.

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VideoDownloader

Instagram Video Downloader

Analyze public Instagram Reels, posts, and videos and open direct source links when available.

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VideoDownloader

TikTok Video Downloader

Find direct links for public TikTok videos without storing the media on Toolsly.

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VideoDownloader

Twitch Clip Downloader

Find direct source links for public Twitch clips, VODs, and videos.

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VideoDownloader

Kick Video Downloader

Analyze public Kick clips and videos and get direct source links when available.

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VideoDownloader

Facebook Video Downloader

Find direct links for public Facebook videos when available formats can be discovered.

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VideoEditor

Browser Video Editor

Edit a video in your browser with a simple timeline, trim controls, audio attachments, and MP4 export.

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ColorConverter

Color Converter

Convert any color (hex, rgb, hsl, hsv, named) to every common format at once — runs locally in your browser.

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ColorPalette

Complementary Color Generator

Find the complementary (opposite) color for any hex / rgb / hsl input — instant, free, no upload.

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ColorPalette

Triadic Colors Generator

Generate a balanced 3-color triadic palette from any base color — runs locally, free.

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ColorPalette

Analogous Colors Generator

Generate an analogous 3-color palette (±30° hue) from any base color — instant, local.

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ColorPalette

Shade & Tint Generator

Generate N evenly-spaced shades (darker) and tints (lighter) of any base color — runs locally.

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ColorGenerator

Random Color Generator

Generate N cryptographically-random colors with optional pastel / vibrant / dark / light constraints.

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ColorGenerator

CSS Gradient Generator

Build a linear or radial CSS gradient between two colors with custom angle and stop count.

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ColorAudit

WCAG Contrast Checker

Check WCAG 2.1 contrast ratio for any foreground/background pair — AA & AAA, normal & large text.

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ColorLookup

Color Name Finder

Find the closest standard CSS named color (out of 148) for any hex / rgb / hsl input.

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ColorLookup

Tailwind Color Finder

Find the closest Tailwind v3 utility class (e.g. bg-emerald-600) for any hex / rgb / hsl color.

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ColorPalette

Material Design Palette Generator

Generate a 10-step Material Design tonal palette (50–900) from any base color.

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ColorPalette

Tailwind Palette Extractor

Generate a full 11-shade Tailwind-style palette (50–950) from any single hex color.

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ColorGenerator

Tailwind Shade Generator

Generate a full Tailwind-style 50–950 shade scale from one hex color — CSS variables & config, in-browser.

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ColorConverter

HSV Color Picker

Convert HSV (Hue, Saturation, Value) to Hex, RGB, HSL, and Tailwind — runs locally in your browser.

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ColorBlender

Color Blender

Blend two colors together with an adjustable ratio — mix in RGB or HSL color space and see hex, RGB, HSL output.

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ColorSimulator

Color Blindness Simulator

Simulate how any color looks to people with color blindness — protanopia, deuteranopia and tritanopia.

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CalculatorsCalculator

BMI Calculator

Compute Body Mass Index from height and weight in either metric or imperial units.

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CalculatorsCalculator

Percentage Calculator

Compute percent of a number, the percentage one number is of another, and percentage change.

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CalculatorsCalculator

Age Calculator

Compute your age in years, months, and days from a date of birth — plus total days lived.

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CalculatorsCalculator

Date Difference Calculator

Compute the difference between two dates in years, months, days, hours, minutes, seconds.

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CalculatorsCalculator

Tip Calculator

Calculate tip and split a restaurant bill across any number of people.

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CalculatorsConverter

Timezone Converter

Convert a time from any timezone to any other — Central to Pacific, UTC to Tokyo, you name it.

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CalculatorsCalculator

Aspect Ratio Calculator

Compute aspect ratios and resize dimensions while preserving the original proportion — 16:9, 4:3, 21:9 and more.

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CalculatorsConverter

Bytes Converter

Convert between bytes, KB, MB, GB, TB and their binary counterparts KiB, MiB, GiB, TiB.

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CalculatorsConverter

Length Converter

Convert between metric and imperial length units — mm, cm, m, km, inches, feet, yards, miles.

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CalculatorsConverter

Weight Converter

Convert between metric and imperial weight units — mg, g, kg, tonnes, ounces, pounds, stone, US tons.

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CalculatorsConverter

Temperature Converter

Convert between Celsius, Fahrenheit, Kelvin and Rankine using the exact formulas, not approximations.

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CalculatorsConverter

Speed Converter

Convert between m/s, km/h, mph, knots and ft/s — covers driving, flying, sailing and physics units.

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CalculatorsConverter

Volume Converter

Convert between mL, L, cubic meters, US fluid ounces, cups, pints, quarts, and gallons (US + Imperial).

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CalculatorsRandom

Coin Flip

Flip a virtual coin once or hundreds of times — cryptographically random, fair 50/50 odds.

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CalculatorsRandom

Dice Roller

Roll d4, d6, d8, d10, d12, d20 or d100 dice — D&D notation like 3d6+2 supported via the modifier field.

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CalculatorsRandom

Random Picker

Pick random items from a list — names, options, prizes. Cryptographically fair, with or without duplicates.

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CalculatorsCalculator

Stopwatch (Duration Calculator)

Format, add, or subtract durations like '1:23:45' or '1h 30m'. Heads up — this is a calculator, not a live stopwatch.

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CalculatorsCalculator

Countdown Timer (Time Until)

Calculate how much time until a date — days, hours, minutes, seconds. Heads up: it's a calculator, not a live ticking countdown.

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CalculatorsCalculator

Pomodoro Timer (Schedule Calculator)

Plan a pomodoro study session — how many cycles, work + break minutes, total time. It's a planner, not a ticking timer.

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CalculatorsCalculator

Scientific Calculator

Evaluate math expressions with trig, logs, roots and constants — degrees or radians, all in your browser.

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CalculatorsCalculator

Compound Interest Calculator

Project savings/investment growth with compound interest — set principal, annual rate, years, compounding frequency and optional monthly contribution.

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CalculatorsCalculator

Loan & Mortgage Calculator

Compute monthly payment, total interest, and the amortization schedule for any fixed-rate loan or mortgage.

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CalculatorsCalculator

Discount Calculator

Compute the sale price after a percent discount — supports stacked discounts and an optional sales-tax / VAT addition.

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CalculatorsCalculator

Salary Converter

Convert between hourly, daily, weekly, biweekly, monthly and annual salary — adjust hours/week and weeks/year.

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CalculatorsCalculator

VAT / Sales Tax Calculator

Add VAT/sales tax to a net amount, or extract VAT from a gross amount — also derives the tax portion as a standalone figure.

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CalculatorsPlanner

Time Zone Meeting Planner

Find overlapping working hours across two time zones to schedule meetings — free, runs in your browser.

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CalculatorsCalculator

Electricity Cost Calculator

Calculate your electricity cost from watts, usage hours and rate per kWh — see daily, monthly and yearly estimates instantly.

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CalculatorsCalculator

Fuel Cost Calculator

Calculate the fuel cost for any trip — enter distance, fuel efficiency and price per gallon or liter to see total cost and fuel needed.

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CalculatorsCalculator

GPA Calculator

Calculate your GPA from letter grades and credit hours — supports A+ through F on the standard 4.0 scale.

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CalculatorsConverter

Number to Words Converter

Convert any number to English words — supports up to trillions, decimals, negatives, and ordinals.

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CalculatorsConverter

Roman Numeral Converter

Convert between Roman numerals and integers — validates input and handles values from 1 to 3,999.

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CalculatorsConverter

Scientific Notation Converter

Convert between standard numbers and scientific notation — see mantissa, exponent, and both forms instantly.

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CalculatorsValidator

IMEI Validator

Validate a 15-digit IMEI with the Luhn check digit and extract the TAC, serial number, and reporting body prefix.

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CalculatorsGenerator

IMEI Generator

Generate valid-format test IMEI numbers with correct Luhn check digits for QA, forms, and modem calculator testing.

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CalculatorsCalculator

Huawei Unlock Code Calculator

Calculate Huawei modem NCK unlock codes for v1, v2, and v201 algorithms, plus the flash code, from a valid IMEI.

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Frequently asked

Do I need to create an account or sign in?

No. Every tool here works without an account, an email address or a sign-in. Pick a task, do it, and close the tab — there's nothing to register for and nothing to cancel later. You won't be asked to 'start a free trial' partway through, either.

Are my files uploaded somewhere?

For most tools, no. Shrinking a photo, PDF page jobs, calculators, colour tools and the bulk of audio conversions all happen right on your own computer, so the file never leaves your device — it works fine on the office wifi without anything being sent to us. A few heavier jobs (some large video conversions) are the exception, and those tools say so clearly before you start.

Is there a file size or page limit?

There's no artificial cap and no paywall hiding at the last step. Because the in-browser tools do the work on your own machine, the real limit is just your computer's memory — very large video files are the most likely to feel it, while photos, PDFs, audio and documents are usually no trouble at all.

Will my files come out with a watermark?

No. Nothing produced here is stamped with a watermark or a 'made with' tag. The only watermark you'll ever see is one you deliberately add yourself using the Add Watermark to PDF tool.

My PDF is too big to email — how do I fix that?

Use two tools back to back. If you're sending several documents, run Merge PDF first to join them into one file, then run Compress PDF to shrink it under your email's attachment limit. Compressing mostly trims the heavy scanned-image data, so the text stays readable. Most people go from 'attachment too large' to sent in under a minute.

Which audio format should I save — MP3, WAV or FLAC?

Use MP3 for everyday listening, sharing and saving a song off a video — it's tiny and plays everywhere. Use WAV when you need full, uncompressed audio to edit, and FLAC when you want that same quality in a smaller file. The MP3-to-WAV and related converters switch between them right in your browser.

What's the difference between CSV and JSON, and which do I need?

CSV is plain rows and columns that any spreadsheet opens instantly — best when a person or a spreadsheet is on the other end. JSON is the structured format apps and websites usually ask for — best when something says 'upload a JSON file'. The CSV to JSON tool converts between them so you can hand over whatever the next step expects.

Does the loan calculator show a full repayment breakdown?

Yes. Enter the loan amount, interest rate and term and the loan & mortgage calculator gives you the monthly payment, the total interest paid over the life of the loan, and a full month-by-month schedule showing how each payment splits between what you owe and the interest. Change the rate or term to compare options.