JSON Formatter

Format, validate, minify, and inspect one JSON document locally in your browser.

Free to useNo installation

Local processing5 MiB guaranteed on supported devices

Your document stays in this browser. This tool sends no document content or filename.

Larger-file tier limits await measured verification; no device capacity is guessed.

JSON input0 bytes

Choose one JSON fileor drop one file here

Examples

JSON resultWaiting for JSON

Waiting for JSON

Formatting options

Output modeFormattedMinified

IndentationSort object keysMoves complete object members using decoded Unicode code-point order; duplicate keys stay stable.Escape non-ASCIIRegenerates this view from the original document. Turning it off restores the never-enabled output.Include output BOMOff by default. A leading input BOM is ignored with a warning.

Output disclosures

Tolerant reading is explicit. The result is strict JSON and lists every removed or replaced construct.

5 MiB guaranteed on supported devices