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Open Source

A Powerful API Mocking and Testing Tool

A full suite of tools to create and share API contracts, test APIs, mock them, and integrate them with web and mobile apps with ease.

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4.8 ⭐ 1200+ Ratings, 200,000+ developers

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

API Testing & Mocking

Supercharge your workflow for 10x faster development

Enable developers & QAs to build and test independently with easy API mocking, API Testing, environment switching, and API modification for faster, more flexible development. Simplify debugging and accelerate feature delivery without dependence on other teams.
Requestly security and compliance

API Mocking

Instantly mock API responses and response status codes without touching the backend or your frontend code. Simulate edge cases with logic based mocks.
API Mocking

API Testing

Quickly test API responses with a simple and powerful API Client. Loaded with all the features like API Collections, Environment variables, etc.
API Testing

Intercept HTTPS Traffic

Intercept, Modify, and Mock HTTPS Traffic from browsers, desktop apps, and mobile apps. Seamlessly intercept Android/iOS simulators as well as physical devices.
Intercept HTTPS Traffic

Mock Server

Create 100s of Mocks in Seconds

Record a live HTTP session and use it to create 100s of API Mocks with 1-Click.
Requestly security and compliance

Filter and create API Mocks with 1 Click.

Mock a whole backend service by simply recording an API calls sessions and create bulk mocks with 1 click.

Mocks run locally and can be shared with team.

API Mocks run locally by overriding your actual API calls and can be easily shared with your team.

Supports both REST & GraphQL APIs

API mocks supports REST & GraphQL APIs enabling your to work with wide range of APIs.

“Great tool for frontend developers and QA tester for API response, redirects, mock data and much more. Requestly removes the dependency on waiting for backend API’s.”

Samroon Michael
Samroon Michael
Senior Frontend Developer at Mudah.my

HTTP Rules

Manage API Behaviour using HTTP Rules

Intercept and modify HTTP Requests using easy-to-configure rules. Modify any part of the request like URL, query params, header, request body, response body, response statuses & response headers.
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Make cross-environment API calls.

Test your local APIs with staging frontend or vice-versa using Redirect & Replace Rules.

Simulate edge cases easily.

Modify the request, response or headers of API calls to simulate edge cases with ease.

Insert custom scripts on any webpage.

Test your JS or CSS on production websites before shipping to ensure they work as expected.

“Requestly is an incredibly useful tool! 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.”

Joél Hawkins Torres
Joél Hawkins Torres
Senior Software Engineer at AutoDesk

Mobile Interception

Develop Mobile/Desktop Apps faster

Due to lack of network monitoring capabilities of major mobile/desktop app enviornments like iOS, Swift, Android, Electron, Flutter, Windows Desktop App, & React Native etc. its hard to work with APIs, Requestly makes it easy by allowing you to watch and fiddle with those network requests.
Requestly security and compliance

Capture and Modify HTTPS traffic from iOS Apps

Capture, Record, Bulk Mock and Modify HTTP(S) traffic from any iOS app running on Emulator or iPhone without any code changes for faster development.

Intercept your Android Apps' traffic

Intercept, Mock and Modify HTTP(S) traffic from your Android apps running on Emulator or Android Phones with ease.

“Requestly is an incredibly useful tool! 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.”

Joél Hawkins Torres
Joél Hawkins Torres
Senior Software Engineer at AutoDesk

Works seamlessly with your favorite OS and browsers

Built for teams

Effortless team collaboration

Share instantly, sync effortlessly, and collaborate effectively with your team in dedicated workspaces.

Quick One time sharing

Instantly generate a link for your assets, such as rules, mocks, and recordings, and share it with your team in one click.

Team workspaces

Easily collaborate with teammates in a shared workspace. Group assets, such as mocks, rules, and sessions, in one place.

Export data & sync to Git

Developers utilize session data directly in pull requests.

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.
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.