JSON Editor & Validator
Edit, format, diff, and repair JSON — all in your browser.
What it does
Free online JSON editor with real-time validation, one-click auto-repair, split and unified diff, and interactive tree editing. Format, minify, sort, compare and fix JSON — everything runs in your browser, nothing uploaded.
Does the same job
all alternatives →
- OJOnline JSON Browser, Editor2022 · jsonhero.io · ▲20
- IMI made a tool which fixes broken JSONs2024 · prakhar897.github.io · ▲29
JSON Parser ProJul 2026 · freejsonparser.com · ▲3Free JSON toolkit — format, validate, diff & repair
CODINGNOW JSON FormatterJun 2026 · coding-now.com · ▲5Format, validate & explore JSON — 100% in your browser
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