Format JSON Online
A JSON formatter pretty-prints a JSON document so a human can read it.
Open our JSON Formatter and the screen splits in two: a code editor on the left where your payload lives, and an output pane on the right that redraws every time you change the indent dropdown or switch the sidebar to the Minifier, the Validator, the JSON-to-CSV converter, the JSON-to-XML converter, or the JSON Escape mode.
Most online formatters do one job and send you elsewhere for the next. Ours keeps the payload in place, so once you have pasted a webhook body or an API response, you can pretty-print it, check it parses, minify it for production, and ship it out as a CSV row set without re-uploading the file.
How to Use the JSON Formatter
- Get the payload into the editor: paste it, type it, or upload a .json file. The left pane parses on every keystroke.
- Pick the job from the sidebar: Formatter for pretty-print with 2 spaces, 4 spaces, or a tab, Minifier for the single-line version, Validator for the parse check, JSON to CSV for spreadsheet rows, JSON to XML for markup, JSON Escape for a string literal.
- Watch the right pane redraw: the output appears as soon as the input parses, and the error message takes its place if it does not.
- Take the result out: Copy for the clipboard, Download for a file. The payload stays in the editor so you can switch modes without re-pasting it.
Features of Our JSON Formatter
Pretty-Print with Indent Control
Pretty-print with indent control lets you switch between 2 spaces, 4 spaces, or a real tab from the toolbar.
Whitespace-Strip Minifier
The whitespace-strip minifier collapses your payload onto one line so it fits the byte budget of an API response.
Native-Parser Validator
The native-parser validator runs JSON.parse and reports the exact token and position of any syntax error.
JSON to CSV Export
JSON to CSV export turns an array of objects into RFC 4180 rows ready to open in Excel or Google Sheets.
JSON to XML Export
JSON to XML export wraps your payload in well-formed markup, with null handled through xsi:nil and array items repeated as item elements.
String Literal Escape
String literal escape produces a fully escaped, quote-wrapped JSON string you can paste straight into another JSON value.
Why Choose AIFreeForever's JSON Formatter
| Feature | AIFreeForever | Typical Online Tools |
|---|---|---|
| Tools per Page | Formatter, Minifier, Validator, JSON to CSV, JSON to XML, Escape | One job per page |
| Indent Options | 2 spaces, 4 spaces, or a real tab | 2 spaces fixed |
| CSV Quoting | RFC 4180 escaping for commas, quotes, and newlines | Naive comma split, breaks on quoted values |
| XML Null Handling | Self-closing elements with xsi:nil attribute | Empty tag or skipped value |
| Privacy | JSON.parse and JSON.stringify run locally | Payload uploaded to a server |
Who Can Use Our JSON Formatter
- Frontend developers: pretty-print an API response before reading it in dev tools.
- Backend engineers: minify a config file before bundling it into a deploy.
- Data analysts: turn a JSON array into CSV rows for a quick spreadsheet pivot.
- Integration engineers: hand a JSON payload to a SOAP service as well-formed XML.
Cleanest way to read, shrink, and convert JSON in one browser tab
Our JSON Formatter keeps the same payload in the editor across every mode, so the version you minify is the same version you just validated and the CSV you export is the same payload you just pretty-printed.
One Editor, Six Modes
Format, minify, validate, convert to CSV or XML, or escape, all without re-pasting.
Native Parser
JSON.parse and JSON.stringify do the work, so the output behaves the way your runtime will.
Stays Local
Nothing leaves the tab, so the payload you paste never reaches a server log.
