Chrome extension for scoped request patching
Patch request headers and mock fetch responses in Chrome with scoped local rule groups.
01 / Scoped header rules
Create groups for a host, route, or local workflow, then set, overwrite, or remove request headers only inside that scope.
Groups require URL patterns so broad changes are deliberate.
Toggle the whole extension, a group, or a single rule while testing.
Use it for auth tokens, environment flags, and per-route debugging.
02 / Fetch response mocks
Define a mock for a matching fetch call and PatchReq returns the response locally in Chrome, useful for local dev, QA, and API testing.
Exercise loading, empty, success, and error states against the same frontend.
Mock status, response headers, and JSON payload shape for matching requests.
Mocks stay scoped to the rule group you enable.
03 / Local-first privacy and security
PatchReq runs locally in Chrome. Rule scope, redacted logs, and explicit toggles keep network changes understandable and contained.
No accounts or remote service are required for request patching.
Scoped groups prevent accidental broad changes across unrelated browsing.
Security caveats are surfaced as validation states, not hidden behind silent rules.
Install PatchReq
Keep rule groups local, explicit, and easy to debug while you build against real or mocked API behavior.
