Requestman

Requestman is a powerful DevTools extension for frontend engineers and QA teams who need faster, cleaner network debugging. No proxy setup. No app code changes. Open DevTools, create rules, and shape request behavior in seconds. With Requestman, you can: Redirect requests to another URL or local file Rewrite URL strings on the fly Add, update, or remove query parameters Modify request body (static or JavaScript) Modify response body (static or JavaScript) Edit request/response headers Override User-Agent (preset or custom) Cancel specific requests Simulate latency with request delay Built for real debugging workflows: Fine-grained matching (URL/HOST, contains, equals, regex, wildcard) Advanced filters (page domain, resource type, method, request headers) Rule groups, quick toggles, drag-to-reorder priorities Import/export rules as JSON for team sharing Hit visibility via popup and on-page toast If you debug APIs, test edge cases, or validate UI under imperfect network conditions, Requestman helps you move faster with less setup friction. Release Notes (v1.0.1) Improved popup UX: moved the master switch to the logo area and added clearer enabled/disabled status labeling. Better action entry points: replaced parts of the old toggle flow with a dropdown-based interaction, with new/updated animated icons for clearer feedback. Fixed state sync behavior: background logic now reacts correctly to stored master-switch changes to prevent toggle desync. Polished UI details: refined popup spacing and visual effects (including hit-toast backdrop styling).