Free online tool

JSON Formatter & Validator

Format messy JSON, minify valid JSON, download clean output, and catch syntax errors with a private browser-only utility.

Browser-only JSON tool

Format, minify, and validate JSON

Paste JSON or open a local .json file to make it readable, compact it for configs, or find the exact parse error without uploading anything.

JSON input Indent

Or choose a local JSON/text file

The file is read by your browser only. It is not uploaded to Bizzon.

Formatted output

Paste JSON to validate it.

Private: pasted JSON and chosen files stay in your browser.

Helpful errors: invalid JSON shows the browser parser message and approximate line/column when available.

Clean output: use formatted JSON for reading or minified JSON for compact configs.

Use the formatted view for reading nested data, the minified view for compact payloads, or download a clean .json file.

Invalid JSON shows a clear parser message so you can fix missing commas, quotes, brackets, and other syntax issues.

Bizzon does not upload or store pasted JSON or chosen files. Formatting and validation happen locally on your device.