What JSON Patch does
Generate, preview, apply, and reverse RFC 6902-style JSON Patch operations; apply Merge Patch locally too.
Also searched as patch, json patch, rfc 6902, merge patch, rfc 7386, apply patch, revert, operations.
01
Build a structural diff
02
Emit add/remove/replace/move operations
03
Preview the patched result before copying
Reversible work
When the original document is available, the engine can build an inverse patch rather than leaving the transformation as a one-way edit.
JSON Patch FAQ
Does jsontools.me upload my JSON?
No. The document is parsed and processed by json-buf inside a dedicated WebAssembly worker on your device.
Does it work offline?
Yes. After the application shell and engine have loaded once, the installable PWA keeps the tools available without a network connection.