ARCHIVED I am no longer developing JSON Formatter as an open source project. I'm moving to a closed-source, commercial model in order to build a more comprehensive API-browsing tool with premium features. I know some users (especially here on GitHub) will always prefer open source tools, so I’m leaving this repo online for others to use/fork, and I’ve published the final open source version as JSON Formatter Classic – you can switch to that if you just want a simple, open source, local-only JSON-formatting extension that won't receive updates.
JSON Formatter
Chrome extension that helps you view and explore JSON API responses.
Features
Fast , even on very long JSON pages
, even on very long JSON pages Dark mode
Syntax highlighting
Collapsible trees, with indent guides
Clickable URLs
Negligible performance impact on non-JSON pages (less than 1 millisecond)
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