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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4.47

Latest

4.47

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0.00

2026年7月16日2026年7月22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

Review the store description, core capabilities, and common use cases.

🚀 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★

Olivier Rousseau-Guyot2025年5月29日

Most flexible tool to inject and intercept scripts in websites

Raul Gamez2025年5月19日

We starting using it as an alternative to mock our requests and we realized it was super useful in our daily life. Super top tool!

Priyank Nahata2025年5月19日

Works well and very easy to pick up and friendly UI

Davide Velluto2025年5月19日

Super useful, great functionalities and tests to setup the proper mocks. Sharing requests with team mates is so useful and done very easily.

Juan Castro2025年5月16日

Really useful tool to mock server responses. It makes frontenders happier 😍

Ana Andrea Ramiro2025年5月14日

Really easy to use, setting a new rule with your response is simple. Also the team behind this is really helpful!

Edward Green2025年5月12日

sarr i am very thankful

Andréa Couture2025年5月1日

I use this tool on an almost daily basis to create demos for my clients. They also have a very responsive and efficient support team. Highly recommend!

Tarun Jain2025年4月25日

It’s become a permanent part of my dev setup. If you work with APIs, or ever need to tweak how a page behaves in your browser, I highly recommend giving Requestly a shot. It saves time, reduces friction, and just works. I especially love: • Mocking APIs during frontend development. • Blocking third-party scripts (super useful for performance testing). • Modifying request/response headers to test edge cases quickly. • The team sharing feature, which is a huge win for collaborative debugging.

Nikolay Jordanov2025年4月11日

Fantastic tool - easy to pick up, super ux-friendly, contextual guidance. 5 stars

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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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