JSON formatter
Pretty-print or minify JSON. Parsing and formatting run entirely in your browser.
Formatting for easier debugging
Pretty-printed JSON turns one long API response into something you can scan with your eyes. Indentation makes missing commas, mismatched braces, and unexpected null values stand out quickly, which is handy when you are debugging a webhook payload or config file.
Minify when size matters
Minified JSON is better when you want smaller payloads for transport or storage. Use the formatter first to validate structure, then minify only after you are confident the data is correct and the compact output will still be readable by your application.
Typical debugging workflow
Paste a failing API response, pretty-print to spot missing commas or quotes, fix upstream, then minify again before sending over the wire.
How this JSON formatter works
Paste JSON text and choose indent width or minify. The tool parses with the browser engine and shows friendly parse errors with approximate positions when data is invalid.
Ideal for config snippets, API responses, and debugging without sending payloads to a remote service.
Privacy
Parsing and formatting occur locally. Do not paste secrets on shared computers even though traffic stays off our servers.
Quick start
- Paste JSON — Drop a config snippet or API response into the input field.
- Format or minify — Choose pretty-print with your preferred indent width, or minify to a single line.
- Fix errors if shown — Parse errors highlight approximate positions — correct syntax and format again.