Requestly is a free, open source browsers & extensions project written in several languages and released under a custom open-source licence. It has 6,757 GitHub stars, 694 forks and 274 open issues, and was last pushed 14 hours ago. On this registry it ranks #42 of 65 tracked projects in Browsers & Extensions, with 5 head-to-head comparisons available.

What is Requestly?

What it is

Requestly is an API client for designing, building, and testing APIs, distributed as a desktop application for macOS, Windows, and Linux. It lives in the developer-tools and API-client ecosystem, positioned as a privacy-first alternative to Postman, and is part of a wider Requestly ecosystem that also includes an HTTP Interceptor browser extension and web app, a desktop proxy, an MCP server, a Web SDK, and Cypress, Selenium, and Playwright integrations. This particular GitHub repository is not the product source: it is the community hub where bugs, feature requests, questions, and the public roadmap are tracked. The API Client application itself is closed-source.

The concrete problem it solves is cloud lock-in and loss of control over API data. Requestly gives developers three placements for their work: entirely local workspaces stored as secure local files with no cloud storage, team sync through Team Projects, or self-hosted deployment with enterprise-grade security. It is also Git-native, so API collections can be versioned in and shared through a Git repository rather than a proprietary backend. Pricing is flat, free for up to 10 collaborators, and paid tiers add governance, SSO, SAML, audit logs, and on-prem deployment.

Key capabilities

  • REST API playground for saving APIs in one place and testing them on demand.
  • Pre-request and post-response scripts that adjust outgoing requests and process incoming responses.
  • Import and export of API contracts in cURL, Postman, and OpenAPI formats.
  • GraphQL support with schema introspection and auto-completion.
  • Git Sync, keeping API collections synchronized with a Git repository for Git-based collaboration.
  • Local Workspaces that keep data private in local files with no cloud storage.
  • Self-hosted deployment option for teams that need data to stay inside their own infrastructure.

Who uses it and how

  • Individual developers who design, build, and test REST, GraphQL, gRPC, and WebSocket endpoints from a desktop client.
  • Teams that already work in Git and want API collections to flow through their existing repository and review workflow.
  • Privacy-conscious and regulated teams that choose local workspaces or a self-hosted deployment instead of a hosted service.
  • Teams migrating off Postman, using the documented one-click switch, with collections moved in through Postman import.
  • Automation users who connect Requestly to Cypress, Selenium, or Playwright through the separate requestly-automation repository.

Getting started

Download a platform build directly: macOS Apple Silicon, macOS Intel, Windows, or

project readme (upstream, from github) — read inline

<img alt="Requestly Logo" src="https://github.com/requestly/requestly/blob/master/assets/rq_logo_full.svg?raw=true"

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Requestly API Client

Design, Build & Test APIs all in one place.

Design, build, and test APIs your way. Git-native by default, sync instantly with Team Projects, or self-host with enterprise-grade security. No cloud lock-in.

Download · Documentation · Report a bug · Community


Why developers pick Requestly API Client

  • 🔒 Complete Data Sovereignty: Choose local, team sync, or self-hosted. Your data never leaves your control.
  • 💸 Predictable, Flat Pricing: Free for up to 10 collaborators. Enterprise governance without hidden add-ons.
  • Lightweight & Developer-First: Open. Hit endpoint. Get response. No bloat, no lag, no noise.

"Requestly is the first API client that has genuinely replaced Postman."

Modern, Git-native API client. Switch from Postman in 1 click.


Features

Feature What it does
🧪 REST API Playground Save all your APIs at one place and test them whenever you need
📜 Pre & Post Scripts Adjust requests before they're sent, process responses once received
🔌 Easy Import/Export Import and export API contracts from cURL, Postman, OpenAPI
🧬 GraphQL Support Test GraphQL endpoints with schema introspection and auto-completion
🔀 Git Sync Keep your API Collections in sync with a Git repository and collaborate using Git
💾 Local Workspaces Everything private and under your control, no cloud storage, just secure local files

Download

Platform Link
macOS (Apple Silicon) Download
macOS (Intel) Download
Windows Download
Linux Download

This repository

This repo is the community hub for Requestly API Client. Use it to:

The Requestly API Client application is closed-source. The community, bugs, and roadmap live here in the open.

Filing an issue about the HTTP Interceptor (our open-source extension + web app)? It's tracked at requestly/interceptor. Misfiled issues will be redirected there.

The rest of the Requestly ecosystem

Project Repo
Requestly HTTP Interceptor (Chrome / Firefox / Edge extension + web app) requestly/interceptor
Requestly HTTP Interceptor Desktop (Mac / Windows / Linux desktop proxy) requestly/http-interceptor-desktop-app
Requestly MCP Server requestly/mcp
Requestly Web SDK requestly/requestly-web-sdk
Cypress / Selenium / Playwright integrations requestly/requestly-automation

Community & Support

Pricing & Enterprise

Free for up to 10 collaborators. Team and Enterprise tiers add advanced governance, SSO, SAML, audit logs, and on-prem deployment. See pricing.

A note on this repository

For developers who've been with us since 2018, this repository previously hosted the source for our open-source browser extension and web app. That code now lives, fully open source, at requestly/interceptor and continues to be actively maintained. We've kept this URL as the home for the broader Requestly community: bugs, ideas, and the people building this with us.

The HTTP Interceptor isn't going anywhere. The API Client is where we're investing next.

License

This repository is licensed under the GNU AGPLv3. Third-party components retain the original licenses provided by their owners.

The Requestly API Client application is proprietary software and is not covered by that license. See requestly.com/terms for product terms.

Frequently asked questions

Is Requestly free to use?

Requestly is open source. There is no licence fee and no seat count — you can self-host it or, where the project offers one, pay a vendor for a managed version instead.

What does Requestly do?

Intercept, modify, and debug HTTP(S) requests effortlessly

What is Requestly written in?

Requestly's source is publicly available at https://github.com/requestly/requestly, with 6,757 GitHub stars.