90 converters · 60 utilities· Free & online
Top Free Online Tools — PDF, Documents, Audio, Video & Calculators
The tools you actually need day to day: combine or split a PDF, convert a document, pull the audio from a video, resize a clip, work out a percentage or a loan payment, pick a colour. Free and online.
Markdown to PDF
Convert Markdown (.md) files to nicely-styled PDF documents — free online, no upload.
Open tool →Markdown to HTML
Convert Markdown (.md) files into a styled, standalone HTML document — free online, no upload.
Open tool →HTML to Markdown
Convert HTML files into clean Markdown (.md) — free online, no upload.
Open tool →Markdown to Text
Strip Markdown formatting and download a plain-text (.txt) file — free online, no upload.
Open tool →Text to Markdown
Wrap a plain-text (.txt) file in a Markdown document — free online, no upload.
Open tool →CSV to JSON
Convert CSV files to pretty-printed JSON — free online, no upload.
Open tool →JSON to CSV
Convert a JSON array (or object) into a CSV spreadsheet — free online, no upload.
Open tool →CSV to YAML
Convert CSV files to YAML — free online, no upload.
Open tool →YAML to CSV
Convert a YAML list into a CSV spreadsheet — free online, no upload.
Open tool →JSON to YAML
Convert JSON to YAML — free online, no upload.
Open tool →YAML to JSON
Convert YAML to pretty-printed JSON — free online, no upload.
Open tool →JSON to XML
Convert JSON to XML — free online, no upload.
Open tool →XML to JSON
Convert XML to pretty-printed JSON — free online, no upload.
Open tool →Word (DOCX) to Markdown
Convert a Word (.docx) document into clean Markdown — free online, no upload.
Open tool →Word (DOCX) to Text
Extract the plain text from a Word (.docx) document — free online, no upload.
Open tool →Word (DOCX) to HTML
Convert a Word (.docx) document into a styled HTML page — free online, no upload.
Open tool →Images to PDF
Combine PNG / JPG / WebP images into a single PDF — one image per page, in your browser.
Open tool →PDF to Images
Extract every page of a PDF as a PNG image — bundled in a single ZIP, in your browser.
Open tool →PDF to PNG
Render every page of a PDF as a PNG image — lossless, packed in a ZIP, runs online.
Open tool →PDF to JPG
Render every page of a PDF as a JPG — tunable quality, packed in a ZIP, runs online.
Open tool →HTML to PDF
Convert HTML files to nicely-paginated PDF documents — free online, no upload.
Open tool →TXT to PDF
Convert plain-text (.txt) files to a clean, paginated PDF — free online, no upload.
Open tool →PDF to TXT
Extract the text layer from a PDF as a plain-text (.txt) file — free online, no upload.
Open tool →TXT to HTML
Wrap a plain-text file in a styled, standalone HTML document — free online, no upload.
Open tool →CSV to HTML Table
Convert a CSV spreadsheet into a styled HTML table — free online, no upload.
Open tool →JSON to HTML
Pretty-print JSON inside a styled, syntax-highlighted HTML document — free online, no upload.
Open tool →CSV to Markdown Table
Convert a CSV spreadsheet into a GitHub-flavored Markdown table — free online, no upload.
Open tool →CSV to TSV
Convert a comma-separated file to tab-separated (TSV) — free online, no upload.
Open tool →TSV to CSV
Convert a tab-separated file to standard CSV — free online, no upload.
Open tool →YAML to XML
Convert YAML to a well-formed XML document — free online, no upload.
Open tool →XML to YAML
Convert an XML document to clean, readable YAML — free online, no upload.
Open tool →CSV to XML
Convert a CSV spreadsheet into a well-formed XML document — free online, no upload.
Open tool →XLSX to CSV
Convert an Excel spreadsheet (.xlsx / .xls) to a CSV file — free online, no upload.
Open tool →XLSX to JSON
Convert an Excel spreadsheet (.xlsx / .xls) to pretty-printed JSON — free online, no upload.
Open tool →CSV to XLSX
Convert a CSV file into an Excel .xlsx workbook — free online, no upload.
Open tool →JSON to XLSX
Convert a JSON file into an Excel .xlsx workbook — free online, no upload.
Open tool →Merge PDF
Combine multiple PDF files into a single PDF — in the order you select them, all in your browser.
Open tool →Split PDF
Split a PDF into one file per page, or by custom page ranges — bundled in a ZIP, in your browser.
Open tool →Rotate PDF Pages
Rotate selected pages of a PDF by 90, 180 or 270 degrees — in your browser.
Open tool →Delete PDF Pages
Remove specific pages or ranges from a PDF — in your browser, with no upload.
Open tool →Extract PDF Pages
Pull selected pages out of a PDF into a new, smaller PDF — entirely in your browser.
Open tool →Reorder PDF Pages
Rearrange the pages of a PDF into any order — all in your browser, no upload.
Open tool →Add Watermark to PDF
Stamp a text watermark across every page of a PDF — in your browser, no upload.
Open tool →Add Page Numbers to PDF
Stamp page numbers onto a PDF — pick position, format and start number, all in your browser.
Open tool →Compress PDF
Shrink a PDF by rasterizing pages to JPEG at a chosen DPI — all in your browser.
Open tool →Unlock PDF
Strip permission restrictions (print/copy/edit) from a PDF — in your browser, no upload.
Open tool →Edit PDF Metadata
Update a PDF's Title, Author, Subject and Keywords — all in your browser.
Open tool →Sign PDF
Add a typed signature block to a PDF locally in your browser. No upload required.
Open tool →Edit PDF
Edit a PDF by adding text to any page locally in your browser. No upload required.
Open tool →Word (DOCX) to PDF
Convert a Word (.docx) document to a styled PDF — free, online, no upload.
Open tool →PDF to Word (DOCX)
Extract text from a PDF and re-package it as an editable Word .docx — free, online, no upload.
Open tool →TOML to JSON
Convert TOML configuration files to JSON — free online, no upload.
Open tool →JSON to TOML
Convert JSON files to TOML configuration format — free online, no upload.
Open tool →MarkItDown
Convert PDFs, Office files, web pages, data files, ebooks, archives and images into clean Markdown.
Open tool →MP3 to WAV
Convert MP3 audio to uncompressed WAV — free online, no upload.
Open tool →WAV to MP3
Convert WAV audio to MP3 with selectable VBR quality — free online, no upload.
Open tool →MP3 to OGG
Convert MP3 audio to Ogg Vorbis — free online, no upload.
Open tool →OGG to MP3
Convert Ogg Vorbis audio to MP3 with selectable quality — free online, no upload.
Open tool →MP3 to FLAC
Convert MP3 audio to FLAC (lossless) — free online, no upload.
Open tool →FLAC to MP3
Convert FLAC lossless audio to MP3 — free online, no upload.
Open tool →MP3 to AAC
Convert MP3 audio to AAC with selectable bitrate — free online, no upload.
Open tool →AAC to MP3
Convert AAC or M4A audio to MP3 — free online, no upload.
Open tool →MP3 to M4A
Convert MP3 audio to M4A (AAC in MP4 container) — free online, no upload.
Open tool →M4A to MP3
Convert M4A audio (AAC in MP4) to MP3 — free online, no upload.
Open tool →WAV to FLAC
Convert WAV audio to FLAC (lossless, smaller files) — free online, no upload.
Open tool →FLAC to WAV
Convert FLAC lossless audio to uncompressed WAV — free online, no upload.
Open tool →MP3 to Opus
Convert MP3 audio to Opus with selectable bitrate — free online, no upload.
Open tool →WAV to OGG
Convert WAV audio to Ogg Vorbis — free online, no upload.
Open tool →OGG to WAV
Convert Ogg Vorbis audio to uncompressed WAV — free online, no upload.
Open tool →FLAC to OGG
Convert FLAC lossless audio to Ogg Vorbis — free online, no upload.
Open tool →AAC to WAV
Convert AAC audio (.aac, .m4a) to uncompressed WAV — free online, no upload.
Open tool →M4A to WAV
Convert M4A audio to uncompressed WAV — free online, no upload.
Open tool →Audio Trimmer
Cut a clip from an audio file — MP3, WAV, OGG, FLAC, M4A, AAC.
Open tool →MP4 to WebM
Convert MP4 video to WebM (VP9 + Opus) — free, runs entirely in your browser.
Open tool →WebM to MP4
Convert WebM video to MP4 (H.264 + AAC) — free online, no upload.
Open tool →MP4 to MKV
Remux MP4 to Matroska (MKV) — fast, lossless, no re-encoding.
Open tool →MKV to MP4
Convert MKV (Matroska) video to MP4 (H.264 + AAC) — free, runs in your browser.
Open tool →MOV to MP4
Convert MOV (QuickTime) video to MP4 (H.264 + AAC) — free online.
Open tool →MP4 to MOV
Convert MP4 video to MOV (QuickTime) — free online, no upload.
Open tool →AVI to MP4
Convert AVI video to MP4 (H.264 + AAC) — free, runs entirely in your browser.
Open tool →MP4 to GIF
Convert MP4 video to an animated GIF — free online, with a tuned palette.
Open tool →MP4 to MP3
Extract the audio track from an MP4 video as an MP3 file — free online.
Open tool →MP4 to WAV
Extract the audio track from an MP4 video as an uncompressed WAV file.
Open tool →WEBM to MP3
Extract the audio track from a WEBM video as an MP3 file — free online.
Open tool →MOV to MP3
Extract the audio track from a MOV video as an MP3 file — free online.
Open tool →AVI to MP3
Extract the audio track from an AVI video as an MP3 file — free online.
Open tool →MP4 to AAC
Extract the AAC audio track from an MP4 video — free online, no re-encode.
Open tool →MP4 to FLAC
Extract the audio track from an MP4 video as a FLAC file — free online.
Open tool →Video Trimmer
Cut a clip from a video file — MP4, WEBM, MKV, MOV, AVI — in your browser.
Open tool →Compress Video
Shrink a video file by re-encoding to H.264 with a quality preset — free, in-browser.
Open tool →File Divider
Split any file into smaller downloadable parts in your browser, with no upload.
Open tool →Audio Divider
Split MP3, WAV, M4A, AAC, OGG, FLAC, and OPUS audio into clips in your browser.
Open tool →Video Divider
Split MP4, WebM, MOV, MKV, and AVI videos into clips in your browser.
Open tool →Online Video Downloader
Download public videos from YouTube, Instagram, TikTok, Facebook, Twitch, Kick, X/Twitter, Vimeo, Reddit, and more without storing files on Toolsly.
Open tool →YouTube Shorts Downloader
Find direct video and audio links for public YouTube Shorts without storing files on Toolsly.
Open tool →Instagram Video Downloader
Analyze public Instagram Reels, posts, and videos and open direct source links when available.
Open tool →TikTok Video Downloader
Find direct links for public TikTok videos without storing the media on Toolsly.
Open tool →Twitch Clip Downloader
Find direct source links for public Twitch clips, VODs, and videos.
Open tool →Kick Video Downloader
Analyze public Kick clips and videos and get direct source links when available.
Open tool →Facebook Video Downloader
Find direct links for public Facebook videos when available formats can be discovered.
Open tool →Browser Video Editor
Edit a video in your browser with a simple timeline, trim controls, audio attachments, and MP4 export.
Open tool →Color Converter
Convert any color (hex, rgb, hsl, hsv, named) to every common format at once — runs locally in your browser.
Open tool →Complementary Color Generator
Find the complementary (opposite) color for any hex / rgb / hsl input — instant, free, no upload.
Open tool →Triadic Colors Generator
Generate a balanced 3-color triadic palette from any base color — runs locally, free.
Open tool →Analogous Colors Generator
Generate an analogous 3-color palette (±30° hue) from any base color — instant, local.
Open tool →Shade & Tint Generator
Generate N evenly-spaced shades (darker) and tints (lighter) of any base color — runs locally.
Open tool →Random Color Generator
Generate N cryptographically-random colors with optional pastel / vibrant / dark / light constraints.
Open tool →CSS Gradient Generator
Build a linear or radial CSS gradient between two colors with custom angle and stop count.
Open tool →WCAG Contrast Checker
Check WCAG 2.1 contrast ratio for any foreground/background pair — AA & AAA, normal & large text.
Open tool →Color Name Finder
Find the closest standard CSS named color (out of 148) for any hex / rgb / hsl input.
Open tool →Tailwind Color Finder
Find the closest Tailwind v3 utility class (e.g. bg-emerald-600) for any hex / rgb / hsl color.
Open tool →Material Design Palette Generator
Generate a 10-step Material Design tonal palette (50–900) from any base color.
Open tool →Tailwind Palette Extractor
Generate a full 11-shade Tailwind-style palette (50–950) from any single hex color.
Open tool →HSV Color Picker
Convert HSV (Hue, Saturation, Value) to Hex, RGB, HSL, and Tailwind — runs locally in your browser.
Open tool →Color Blender
Blend two colors together with an adjustable ratio — mix in RGB or HSL color space and see hex, RGB, HSL output.
Open tool →Color Blindness Simulator
Simulate how any color looks to people with color blindness — protanopia, deuteranopia and tritanopia.
Open tool →BMI Calculator
Compute Body Mass Index from height and weight in either metric or imperial units.
Open tool →Percentage Calculator
Compute percent of a number, the percentage one number is of another, and percentage change.
Open tool →Age Calculator
Compute your age in years, months, and days from a date of birth — plus total days lived.
Open tool →Date Difference Calculator
Compute the difference between two dates in years, months, days, hours, minutes, seconds.
Open tool →Tip Calculator
Calculate tip and split a restaurant bill across any number of people.
Open tool →Timezone Converter
Convert a time from any timezone to any other — Central to Pacific, UTC to Tokyo, you name it.
Open tool →Aspect Ratio Calculator
Compute aspect ratios and resize dimensions while preserving the original proportion — 16:9, 4:3, 21:9 and more.
Open tool →Bytes Converter
Convert between bytes, KB, MB, GB, TB and their binary counterparts KiB, MiB, GiB, TiB.
Open tool →Length Converter
Convert between metric and imperial length units — mm, cm, m, km, inches, feet, yards, miles.
Open tool →Weight Converter
Convert between metric and imperial weight units — mg, g, kg, tonnes, ounces, pounds, stone, US tons.
Open tool →Temperature Converter
Convert between Celsius, Fahrenheit, Kelvin and Rankine using the exact formulas, not approximations.
Open tool →Speed Converter
Convert between m/s, km/h, mph, knots and ft/s — covers driving, flying, sailing and physics units.
Open tool →Volume Converter
Convert between mL, L, cubic meters, US fluid ounces, cups, pints, quarts, and gallons (US + Imperial).
Open tool →Coin Flip
Flip a virtual coin once or hundreds of times — cryptographically random, fair 50/50 odds.
Open tool →Dice Roller
Roll d4, d6, d8, d10, d12, d20 or d100 dice — D&D notation like 3d6+2 supported via the modifier field.
Open tool →Random Picker
Pick random items from a list — names, options, prizes. Cryptographically fair, with or without duplicates.
Open tool →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.
Open tool →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.
Open tool →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.
Open tool →Compound Interest Calculator
Project savings/investment growth with compound interest — set principal, annual rate, years, compounding frequency and optional monthly contribution.
Open tool →Loan & Mortgage Calculator
Compute monthly payment, total interest, and the amortization schedule for any fixed-rate loan or mortgage.
Open tool →Discount Calculator
Compute the sale price after a percent discount — supports stacked discounts and an optional sales-tax / VAT addition.
Open tool →Salary Converter
Convert between hourly, daily, weekly, biweekly, monthly and annual salary — adjust hours/week and weeks/year.
Open tool →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.
Open tool →Time Zone Meeting Planner
Find overlapping working hours across two time zones to schedule meetings — free, runs in your browser.
Open tool →Electricity Cost Calculator
Calculate your electricity cost from watts, usage hours and rate per kWh — see daily, monthly and yearly estimates instantly.
Open tool →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.
Open tool →GPA Calculator
Calculate your GPA from letter grades and credit hours — supports A+ through F on the standard 4.0 scale.
Open tool →Number to Words Converter
Convert any number to English words — supports up to trillions, decimals, negatives, and ordinals.
Open tool →Roman Numeral Converter
Convert between Roman numerals and integers — validates input and handles values from 1 to 3,999.
Open tool →Scientific Notation Converter
Convert between standard numbers and scientific notation — see mantissa, exponent, and both forms instantly.
Open tool →IMEI Validator
Validate a 15-digit IMEI with the Luhn check digit and extract the TAC, serial number, and reporting body prefix.
Open tool →IMEI Generator
Generate valid-format test IMEI numbers with correct Luhn check digits for QA, forms, and modem calculator testing.
Open tool →Huawei Unlock Code Calculator
Calculate Huawei modem NCK unlock codes for v1, v2, and v201 algorithms, plus the flash code, from a valid IMEI.
Open tool →Popular tools
The tools people open most often on TopTool.
How TopTool works
1. Pick a tool
Browse the tools by category, or search for the exact format or task you need.
2. Drop a file or paste text
Drag a file onto the page, or paste text into the input. Most tools accept multiple files at once.
3. Download the result
Conversion happens in seconds — usually right in your browser. Save the output to your device with one click.
Why TopTool?
- Everyday essentials — PDF editing, document conversion, audio/video, calculators and colour.
- Most tools run in your browser; nothing is uploaded for client-side conversions.
- Free, no sign-up, no watermark.
- One tab for the dozen little tasks you'd otherwise hunt across a dozen sites.
Frequently asked
Is TopTool really free?
Yes. Every tool on TopTool is free with no sign-up, no watermarks, and no usage limits. We do not gate features behind a paywall.
Do my files leave my browser?
For the vast majority of TopTool tools, including image converters, PDF tools, text utilities, and calculators, your files and text never leave your browser. Conversion happens locally on your device. A small number of heavier tools run on our server and discard the input immediately after the response.
Do I need to install anything?
No. TopTool runs in any modern browser on desktop and mobile. There is nothing to install or sign up for.
How many tools does TopTool have?
More than 300 tools cover images, PDFs, audio, video, text, encoding, color, payment, calculators, and developer utilities in one place.
Can I use TopTool on my phone?
Yes. TopTool is built mobile-first and works on iOS and Android browsers. The tool grid, drag-and-drop, and pickers are all touch-friendly.