Cost / License
- Free
- Open Source
Application types
Platforms
- Mac
- Windows
- Linux
- Google Chrome
- Firefox



Restretto is described as 'Minimal native and free REST API client for Mac' and is a API Client in the development category. There are more than 50 alternatives to Restretto for a variety of platforms, including Mac, Windows, Linux, Web-based and Flathub apps. The best Restretto alternative is Bruno, which is both free and Open Source. Other great apps like Restretto are Postman, Insomnia REST Client, Yaak and Hoppscotch.



HTTP client plugin for Sublime Text with an expansive feature set, modern UX, elegant syntax and first class support for testing.




apiman is an open source API management layer that streamlines repetitive tasks often required when providing an API, such as implementing security, throttling and billing.
Powerful IDE to work with API. Harness the power of scenarios, autocompletion and syntax highlight for API development. Write tests, share code without leaving the comfortable development environment.




The API Astrolab enables today’s API-first companies to show their API products in a visual way so that anyone can understand how they work.



API Test Base is a free, offline-first tool for testing APIs and their side effects — the records an API writes to a database, the messages it publishes to a queue, the downstream services it calls. Test cases are created with a no-code / low-code UI, and the same tests can be...


RestCase is a security-focused API development platform that enables its users to rapidly create secure microservices, mock them in order to start testing, monitor APIs and collaborate on their development and testing.


Gotcha HTTP Client is a lightweight http client that allows you to make requests and inspect responses.




APITree is a free cloud-based API tool to create, manage and share OpenAPI specifications. It converts your OpenApi v2 / v3 specification into a beautiful technical API documentation. Public API documentation is hosted for free.
EchoAPI is an all-in-one API development collaboration platform that offers essential features like API debugging, design, automated testing, stress testing, and documentation generation.



