Product
API Client

A lightweight and secure API Client for faster API Development & Testing

HTTP Interceptor

A Powerful HTTP Interceptor to Intercept, Record, Debug & Modify HTTP Requests

API Mocking

Build frontend faster without waiting for backend.

Use Case
Frontend Web/Mobile Developers

Requestly improves front-end workflows with local JS testing, mocking, and SessionBook debugging.

For QA engineers

QA engineers love Requestly for its features and ease of use, allowing easy edge case testing.

Support Engineer

Support engineers value Requestly for debugging, demoing, and overriding GTM and Adobe scripts.

Backend Developers

Requestly helps in improving back-end development workflows, by enabling testing.

Requestly vs Postman
Resources
Pricing
Blog
Case Studies
Status
Github
Release Note
Student Programme

📣 Requestly API Client – Free Forever & Open Source. A powerful alternative to Postman. Try now ->

File Server

Effortlessly Host and Serve Your Files

Quickly upload JSON, JS, or CSS files and serve them as mock API endpoints to test your frontend—no backend changes needed.

Get started for Free
Docs ->

Trusted by 200,000+ developers, from next-gen startups to Fortune 500 companies.

Trusted by teams at… Trusted by teams at… Trusted by teams at… Trusted by teams at… Trusted by teams at… Trusted by teams at… Trusted by teams at… Trusted by teams at… Trusted by teams at…
File Server for Frontend Testing

Minimize dependencies and accelerate your development process by hosting files in the cloud. Focus on testing your applications without the hassle of backend setup.​

file server editor interface

Powerful toolkit

Powerful Testing Toolkit

Organize collections, generate responses with AI, host files, and configure headers—all in one place.
Organize Collections
Group your files into collections for better management and accessibility
Generate content using AI
GPT-based API Response generator will help you create custom responses faster.
Host files
Upload any CSS or JS files and generate secure public access links for sharing.
Set HTTP headers
Control response headers like content type, CORS, and caching to match your test environment.

File Hosting

Host JSON for APIs and prototypes

Use JSON files as endpoints to power UI development, test integrations, or share structured data instantly.
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Requestly security and compliance

JS/CSS Files

Write and serve JS/CSS instantly

Edit and host CSS or JavaScript directly in our online editor—no deploys or servers required. Perfect for injecting styles or scripts on the fly.
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Requestly security and compliance

API Response

Set up redirects to hosted endpoints seamlessly

Use your hosted files with Redirect Rules to override network requests during development—no backend changes or browser extensions needed.
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Requestly security and compliance

Nested APIs

Structured URLs with Collections

Organize files in collections, and Requestly automatically generates structured URLs that mirror your folder hierarchy. Keep your endpoints clean, consistent, and easy to manage.
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Requestly security and compliance

Beyond Mock Sever

More from Requestly

Developers can now debug errors without juggling between their development environment and bug tracker.

Session recording

Lightweight web debugging proxy to intercept and modify HTTPs Requests. Modify Headers, API Requests, Inject scripts & do much more with this open-source tool.
Session recording

HTTP Interceptor

Lightweight web debugging proxy to modify HTTPs request & response. Modify Headers, API Requests, Inject scripts & do much more with this open-source tool.
HTTP Interceptor

API client

A comprehensive and web-based API Client for modifying and testing APIs. You can test the Mock APIs you’re creating here to fast track your development lifecycle.
API client

Built for teams

Effortless team collaboration

Share instantly, sync effortlessly, and collaborate effectively with your team in dedicated workspaces.
Learn more ->

Quick One time sharing

Instantly generate and share a link to your rules and more

Team workspaces

Collaborate easily with teammates in a shared workspace.

Export data & sync to Git

Easily version-control your configs by exporting and syncing

Secure and private

Enterprise-ready security and compliance

Requestly ensures top-tier security with SOC-II compliance, SSO integration, and role-based access control. We protect your data and secure your workflows, making us the ideal choice for enterprises.
Learn more Schedule a demo call ->
Requestly security and compliance

SOC-II Compliance

Adheres to rigorous security standards for data protection and privacy.

Single Sign-On (SSO)

Simplifies user access with secure, centralized authentication.

Role-based access control

Ensures precise control over user permissions and data access.

Data encryption

Protects your data in transit and at rest with advanced encryption protocols.

Audit logs

Protects your data in transit and at rest with advanced encryption protocols.

Regular security updates

Keeps your environment secure with timely updates and patches.
Customers love us

Loved by developers around the World

Developers around the world trust us to simplify debugging, speed up workflows, and make development more efficient.

★★★★★ on Chrome store

Absolutely love the API Client feature! It’s like Postman, but better integrated into my daily workflow. Modifying API responses directly from the same tool I use for debugging is such a time-saver. Great job, Requestly team, for constantly innovating!

★★★★★ on Chrome store

We have been using Requestly for HTTP Rules and Network inspector capabilities, which works great. We recently migrated from Postman to API Clients capability of Requestly.

★★★★★ on Chrome store

Modifying requests and/or responses is the killer feature area for me. Redirect JS in prod, generate mocks, modify headers, map local, map remote, SessionReplay, Load a local JS bundle, override scripts, etc. etc. etc. - TOTALLY worth it and very useful.

★★★★★ on Chrome store

Requestly is an incredibly useful tool for developers working on a large team with multiple staging envs, or numerous app endpoints for various APIs in a local environment. The Sessions feature is especially useful for documenting solutions or sharing with others since it captures the relevant network traffic, and screen recording enables others to easily reproduce. Requestly combines all the power of complicated tools like Charles Proxy and Postman in one app/chrome extension. I highly recommend giving it a try if you haven't already–it will make your dev work so much easier. (Summarized)

★★★★★ on Chrome store

Requestly is user-friendly, brilliant and easy-to-use. I use it on an daily basis and it makes my work easier. After using other tools like Charles - Requestly is a nice new breath of air that I highly vouch for. Apart from the tool being amazing - the support from the Requestly team is phenomenal with them always going above and beyond for their clients.

This is by far the best tool for managing request headers! Plus the developers are very active meaning you'll get help if you're ever stuck or need help solving a problem. I use it daily and couldn't be happier.

Awesome tool. I use it almost daily for my projects to modify request body, headers, etc. Would recommend it to every frontend developer out there. Thank me later 🙂 (Case Study)

Requestly is awesome. I used to use Charles proxy in my day-to-day work but it always messed with my wifi. I haven't had any issues with Requestly. Requestly's UI is an amazing tool and great to work in.