Rewire

Watch HTTP traffic and rewire it with ordered rules from a side panel.

Rewire is a side-panel HTTP inspector and rule engine for Chromium-based browsers. Watch the traffic of the active tab, inspect every request, and rewire any of it with ordered rules — without touching your code, your backend, or your network settings. WHAT YOU GET - A live traffic timeline in the side panel, with status, method, URL, duration and content type at a glance. - A full inspector for any request: General, request/response headers, cookies, bodies, applied-rule trail and a diff between what went out and what came back. - A Code tab that turns the selected request into a runnable snippet in fetch, axios, curl, PowerShell, HttpClient and more. Copy and run. - A Client tab (Postman-style): method, URL, headers, body, response — ad-hoc requests sent from the panel and logged into the same timeline as the tab. - A cookie jar that respects HttpOnly and Secure flags. RULE ENGINE Rules match by URL, method, host, headers, resource type or regex — all combinable — and run in the order you pick: - Mock Response — short-circuit a request with any status, headers and body. - Redirect — issue a real 3xx with a Location header (301, 302, 303, 307, 308). - Rewrite — silently send the request to a different URL. - Set or remove request and response headers. - Set or remove cookies. - Set query parameters. - Add latency. - Capture a value (URL, query, header, cookie, JSONPath or XPath on the body) into a variable usable in other rules as {{name}}. Export rule sets to JSON and share them with a teammate or save presets per project. Import them back with one click. PRIVACY Everything stays on your machine. No telemetry, no accounts, no remote servers. The extension only reads the traffic of tabs where you open the panel. Built for developers, QA engineers and anyone who needs to see and shape HTTP traffic without leaving the browser.