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CSV→JSON

CSV to JSON

CSV to JSON is a free online document converter for changing CSV and TSV files into JSON files. CSV to JSON accepts 4 MIME types, returns application/json, includes 1 setting, and runs in your browser on the device.

Drop .csv / .tsv file here

or click to choose

Options

Key facts

Input
2 formats: CSV and TSV (text/csv, text/tab-separated-values, text/plain, )
Output
JSON (application/json)
Runtime
your browser on the device
Settings
1 control: First row is a header
File mode
1 input file creates 1 output file
Cost
$0, no account required

How to use CSV to JSON

  1. 1

    Open your CSV, TSV file

    Drop your CSV, TSV file onto the page, or click to browse and pick one from your device.

  2. 2

    Choose options

    Adjust the conversion options to suit your needs. Defaults work well for most inputs.

  3. 3

    Convert and download

    Click Convert. Your JSON file is ready to download in seconds.

CSV to JSON details

First, CSV to JSON reads CSV and TSV source files and prepares JSON output for the document workflow. Next, The visible controls are First row is a header. Additionally, Files and text stay in the browser session.

Drop in a.csv file and download a JSON document. With the header option on (default), each row becomes an object keyed by the column names from the first row; with it off, each row becomes an array of strings. Delimiters (comma, tab, semicolon, pipe) are auto-detected. The output is pretty-printed with 2-space indentation. Runs entirely in your browser; your file never leaves your device.

Common searches

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Frequently asked

What is CSV to JSON?

CSV to JSON is a free online document converter for changing CSV and TSV files into JSON files. CSV to JSON accepts 4 MIME types, returns application/json, includes 1 setting, and runs in your browser on the device.

What files does CSV to JSON accept and create?

CSV to JSON accepts CSV, TSV files (text/csv, text/tab-separated-values, text/plain, ) and creates JSON files (application/json). The page includes 1 setting: First row is a header.

Do my files and data stay private?

Yes. CSV to JSON runs entirely in your browser using your device's CPU. Files and text are never uploaded to our servers, so your data stays private.

How do I use CSV to JSON?

Open CSV to JSON, drop in your CSV, TSV file, choose any options, and click Convert. Your browser does the work locally and produces a JSON file you can save right away.

What is the maximum file size for CSV to JSON?

Because CSV to JSON runs in your browser, the maximum size depends on your device's available memory. Most modern phones and laptops handle files up to a few hundred MB without issues.