TOOL · 30 · Data & Utility
Pretty-print or minify JSON, validate syntax with clear error location, and copy or download.
In short
JSON Formatter & Validator pretty-prints or minifies any JSON snippet, points to the exact line and column of syntax errors, and lets you copy or download the result. Runs entirely in your browser.
Processed 100% in your browser — your files never leave your device.
Drop files here or click to browse
Or upload a .json file
No signup · No watermark · Files never leave your device · Up to ~300 MB recommended
Step · 01
Paste JSON into the input, or drop a .json file.
Step · 02
Pick pretty-print (with your indent size) or minify.
Step · 03
Copy the result to your clipboard, or download it as a .json file.
Sigue adelante
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