JSON Formatter
Beautify, validate and minify JSON with precise error locations. Format and validate JSON online. Pretty-print with 2 or 4 spaces, minify, and pinpoint syntax errors with line and column. Free JSON beautifier for developers.
À propos de JSON Formatter
A single misplaced comma can break a 2,000-line config file. Paste any JSON here to pretty-print it with your preferred indent, minify it for production, or validate it with error reporting that points to the exact line and column of the problem. The formatter handles large payloads, preserves your data exactly, and includes a key-sorting option for diff-friendly output — all locally in your browser.
Comment utiliser JSON Formatter
- Paste your raw or minified JSON into the editor.
- Click Format to pretty-print, or Minify to compact it.
- Fix any syntax error where the validator points you.
- Copy the result back into your project.
Fonctionnalités clés
- Pretty-print with 2, 4 or 8 space indentation
- Minify to a single compact line
- Validation with exact line/column error positions
- Optional alphabetical key sorting
Is my JSON sent to a server?
What JSON dialect is supported?
Outils Outils pour développeurs associés
D’autres utilitaires de la même catégorie.
Base64 Encoder / Decoder
Encode or decode Base64 safely, including emoji and non-Latin text.
URL Encoder / Decoder
Percent-encode or decode URLs and query-string values.
HTML Entity Converter
Escape or unescape HTML entities — keep code visible and safe.
Hash Generator
Create MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes instantly.
UUID Generator
Bulk-generate random UUID v4 identifiers with one click.
JWT Decoder
Inspect JWT headers and payloads, with expiry checks.