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Format and beautify JSON online free. Paste minified JSON and get instant syntax-highlighted, indented output. Minify, validate, tree view, sort keys and auto-repair.
Built for real developer workflows. No fluff, just the tools you need.
Keys, strings, numbers, booleans and nulls are colour-coded for instant visual scanning of any JSON structure.
Collapse and expand any object or array. Navigate deeply nested JSON without scrolling through thousands of lines.
Alphabetically sort all object keys at every nesting level. Essential for consistent diffs and readable config files.
Fixes trailing commas, single quotes, JavaScript comments and undefined values — the most common hand-written JSON mistakes.
Key count, max depth and file size update in real time as you type. No clicking needed.
Invalid JSON shows the exact line and column of the error with surrounding context highlighted in the output panel.
Get results in seconds — no account, no file upload required.
Paste raw, minified or broken JSON into the left panel. Or upload a .json file from your computer.
Select Beautify for readable output, Minify for compact production code, or Tree View to explore nested structures.
Click Copy to copy to clipboard or Download to save as formatted.json.
Every tool at itsseven is free, private and browser-based.