JSON Patch Apply
Apply RFC 6902 JSON Patch operations to a document and preview the patched JSON instantly.
Apply RFC 6902 JSON Patch
JSON Patch describes a sequence of add, remove, replace, move, copy, and test operations using JSON Pointer paths. Paste a document and a patch array to preview the updated object, useful when debugging event sourcing, optimistic UI merges, or API contract tests.
To generate a patch from two documents, use JSON Patch Diff. For merge-patch semantics, see Edit JSON alongside your API docs.
Frequently Asked Questions
Which RFC version is supported?
Operations follow RFC 6902 as implemented by the fast-json-patch library, including
test operations when you include them in the patch array.
Is the original document mutated?
The preview clones your input before applying operations, so re-running the same patch against the textarea content stays predictable.
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