Stable signalNo paid features detectedHigh-risk permissions

Requestly: Intercept & Modify HTTP Requests

Intercept & modify HTTP(S) traffic: redirect URLs, modify headers, inject scripts, mock REST & GraphQL APIs, and more.

Users300KCurrent public install base

Rating4.5Store average score

Reviews1,748Public review volume

Manifest versionV3Extension platform version

7-day growth0Net users gained this week

7-day growth rate0%Relative weekly velocity

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Start

4.47

Latest

4.47

7-day rating change

0.00

2026年7月15日2026年7月21日

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Technical snapshot

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Version25.9.24

ManifestV3

Size1.23MiB

Languages1English

Published--

Store updated--

Last crawled--

Overview

Product summary

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🚀 Best Chrome extension to supercharge Web Development & QA. Trusted by 300,000+ developers.

👉 Requestly works directly in Chrome with beautiful, modern UI and team collaboration features. Popular features - Modify HTTP Headers, Override API Responses, API Client, API Mocking & HTTP Interceptor.

⭐️ Open Source - https://github.com/requestly/requestly/

🌟 Top Use Cases

→ A beautiful & privacy-friendly API-Client

→ Mock API Responses to build frontend when backend isn't ready

Reviews

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Store average score4.5Chrome Web Store aggregate rating, including ratings without synced review text

Synced text average4.4Average computed only from synced review bodies below

Reviews with text1,240Synced review bodies

Total ratings / reviews1,748Chrome Web Store public rating/review count

Store average score: 4.5. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.

5★

959

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102

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1★

Jagbir Hooda2016年12月25日

How to debug if matching rules and substitutions are working or not? How does one debug and test? Don't see any documentation. Am I missing anything.

Jamie Lennox2016年12月16日

works well. But I can't see any way to remove the icon from the Google Chrome settings drop-down. Would like this removed

MrJacob2003 EDCP2016年12月16日

Rules: . Replace Host

Dakota Hawkins2016年12月14日

This works perfectly!

Tom C2016年12月6日

Much better than other very limited redirect extensions, actually allows to specify url vs host vs containing or replacing etc. etc. Good stuff.

Finn McSwag2016年11月21日

finally got the true power of a goanimater again. i give this a 1000000000/10

Sudhanshu2016年11月9日

Replacement is super fast and awesome! Can we have an extra checkbox for Auto replacement while taking the replacement pairs? So that we can have a manual replacement by clicking on the icon, if there is any matching rule. My use case is for changing the host to localhost for bug fixing, but there can be other uses as well.

David Poirier2016年11月2日

Works nicely. Would be better without ads but that's life eh.

CowAnim8s2016年10月26日

I used this to get the nonbusiness themes back on GoAnimate4Schools after HTML5! I love this! Thanks!

Abdul Ahad2016年10月25日

Tried Replacing some part of a URL and it worked like a charm.. Brilliant. Good Work.

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AI product read

Intercept, modify, and mock HTTP(S) network requests and responses directly in the Chrome browser

Enables web developers and QA engineers to modify network traffic (redirect URLs, modify headers, inject scripts, mock API responses) without setting up a proxy server, avoiding VPN issues and latency. Allows frontend development when backend APIs aren't ready, testing local JS/CSS changes on production sites, and overriding REST/GraphQL API responses.

User installs the extension, creates HTTP rules (redirect, headers, script injection, mock API responses) via the extension popup or the Requestly web app at app.requestly.io. Rules are stored locally in chrome.storage.local. When browsing, the service worker intercepts matching requests using declarativeNetRequest and webRequest APIs, applies the configured rules, and optionally records sessions for replay. The extension integrates with the Requestly web app for advanced rule management, team collaboration, and cloud sync.

Target users: Web developers / QA engineers / Frontend developers / DevOps engineers / API testers

Source code is heavily minified making detailed logic analysis difficult
Could not definitively determine if the web app UI (popup React app) requires login or renders locally without auth
The devtools/index.js is 1.69MB minified - deep inspection was not feasible within tool budget

Monetization

No paid features detected

No payment-related code found in the extension source: no premium/subscription/billing/pricing/upgrade/stripe keywords detected. The 'checkout' matches are all from the rrweb session recording library (checkoutEveryNms, isCheckout parameters) which is session replay checkpoint terminology, not payment. The extension is open source (https://github.com/requestly/requestly/). No feature gating, license checks, or payment UI found in the extension code. The destination service (Requestly/BrowserStack) likely has paid team/enterprise plans, but the extension itself does not gate features behind payment.

Confidence: 70
Payment platform: --
Source: AI / Medium
Login required: Yes
Reason: The extension's core rule-application engine works locally without login (rules stored in chrome.storage.local). However, the extension heavily integrates with the Requestly web app at app.requestly.io for session recordings (SESSIONS_URL), rule management UI, team collaboration, and cloud sync. The app.cs.js content script injects on requestly domains to bridge the extension and web app. Session recording drafts open at app.requestly.io/sessions/draft/{id}, and the externally_connectable manifest connects to BrowserStack domains. Login to the destination service (Requestly web app) is required for the full workflow including cloud features, session replay, and team collaboration.

Permission risk

High-risk permissions

This estimate uses declared permissions and host permissions to assess access scope and sensitivity.

敏感权限：proxy
扩展能力较强：scripting、storage、tabs、webRequest
主机权限覆盖范围较宽

Publisher

RQ Labs India Private Limited

Sachin Jain

Email: [email protected]
Phone: +919711001272
Address: Unity the Amaryllis, Phase-1 Flat 208, Tower 10B, Karol Bagh Delhi, Delhi 110005 IN

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