4 free tools · run in your browser
JSON Tools
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- No sign-up
- Files stay on your device
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JSON Tools
All json tools
4 tools
JSON Formatter
Format and beautify JSON into readable, indented text -- keeps big numbers, key order and duplicate keys exactly as typed.
Open toolJSON Validator
Check whether JSON is valid, see the exact line and column of any error, and get warnings about duplicate keys, oversized numbers and other valid-but-risky JSON -- entirely in your browser.
Open toolJSON Minifier
Strip all insignificant whitespace from JSON and see exactly how many bytes you saved -- keeps big numbers and key order exactly as typed, entirely in your browser.
Open toolJSON Viewer
Explore JSON as a collapsible, searchable tree -- expand any branch, search across the whole document, and copy any value or its exact path.
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Runs on your device
The work happens in your browser. Nothing you type or upload is sent to us.
No account needed
Open a tool and use it. No sign-up, no email, no waiting.
Works everywhere
Phone, tablet or desktop, in any modern browser.
About JSON Tools
JSON Tools on Toolipi are built for quick, repeatable browser workflows. Each utility has a clean URL, focused metadata, structured data, and a mobile-friendly interface so users and search engines can understand exactly what the page does.
Most tools process input directly in the browser for speed and privacy. Bookmark this category to keep the full json tools collection close at hand.
Need something else?
More free tools across 9 categories, all running in your browser.