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JSON Patch Builder

Generate an RFC 6902 JSON Patch of add, remove and replace operations that turns a source JSON document into a target document.

JSON Patch Builder

Output

Working…

Updated . Provided as is. Check the output before you rely on it in production.

How to use JSON Patch Builder

  1. 1

    Paste the source JSON

    Paste the JSON document as it is now, before the change.

  2. 2

    Paste the target JSON

    Paste the document as it should become.

  3. 3

    Generate the patch

    You get an RFC 6902 array of add, remove and replace operations that turns the source into the target.

  4. 4

    Apply it

    Send the patch with an HTTP PATCH request (Content-Type: application/json-patch+json) or apply it with a JSON Patch library.

Questions and answers

What is JSON Patch?
JSON Patch (RFC 6902) describes changes to a JSON document as an ordered list of operations, so you can send only the changes. This tool diffs your source and target JSON and emits add, remove and replace operations with JSON Pointer paths; a changed array is replaced as a whole.
Is the order of operations important?
Yes. Operations apply in sequence, so array index paths depend on earlier operations.

Use it as an API

JSON Patch Builder is also callable as a free HTTP JSON API at https://aidevhub.io/api/json-patch-builder/ — GET with query parameters or POST with a JSON body, no authentication, CORS enabled, fair use (abusive traffic is throttled at the edge; there is no per-request quota header). Responses return { ok, tool, result, meta }. 

curl -s -X POST https://aidevhub.io/api/json-patch-builder/ \
  -H "Content-Type: application/json" \
  -d '{"source":"{\"name\":\"Alice\",\"role\":\"dev\"}","target":"{\"name\":\"Alice\",\"role\":\"lead\"}"}'

Machine-readable contract: /api/tool/json-patch-builder.json All API endpoints: /agents/ LLM site index: /llms.txt

For AI agents: how to call this tool

Machine-readable contract, endpoints and examples. Humans can ignore this section.

Best Path For Builders

Dedicated API endpoint

Deterministic outputs, machine-safe contracts, and production-ready examples.

Dedicated API

https://aidevhub.io/api/json-patch-builder/

OpenAPI: https://aidevhub.io/api/openapi.yaml

GET /api/json-patch-builder/ GET json-patch-builder
POST /api/json-patch-builder/ POST json-patch-builder

Unified Runtime API

https://aidevhub.io/api/tools/run/?toolId=json-patch-builder&a=%7B%0A%20%20%22name%22%3A%20%22Alice%22%2C%0A%20%20%22role%22%3A%20%22dev%22%2C%0A%20%20%22tags%22%3A%20%5B%0A%20%20%20%20%22a%22%0A%20%20

GET and POST are supported at /api/tools/run/ with identical validation and limits.

Limit: 30 req / 60s, input max 256 KB.