JSON Formatter
Format, minify and validate JSON with errors pointed at the exact line.
Runs entirely in your browser. Nothing you enter leaves your device.
How to use
- Type or paste your text into the input panel on the left.
- The result updates instantly in the output panel on the right.
- Use Copy or Download to save the result, or Reset to start over.
Related tools
- JavaScript FormatterFormat and minify JavaScript and TypeScript source.
- JWT DecoderInspect the header, payload and expiry of a JSON Web Token locally.
- PDF Merge, Split & ConvertMerge PDFs, split or extract pages, and convert between images and PDF — processed entirely in your browser, nothing is uploaded.
- Dummy File GeneratorCreate test files of an exact size with random or zero-filled content.
- Hash GeneratorCompute MD5, SHA-1, SHA-256 and SHA-512 digests of text or a file.
- Mock Data GeneratorBuild a schema, then generate realistic sample records and export them as JSON, CSV or SQL INSERT statements — in your browser, with no limits and no upload.