RecipeUI is rethinking how we use API tools like Postman or Insomnia. We're starting off with TypeScript powered API requests and API collections you can run in seconds!

Kreya is described as 'GUI client for gRPC, REST and WebSocket APIs with innovative features for environments, authorizations and more' and is a API Client in the development category. There are more than 50 alternatives to Kreya for a variety of platforms, including Windows, Linux, Mac, Web-based and SaaS apps. The best Kreya alternative is cURL, which is both free and Open Source. Other great apps like Kreya are Postman, Insomnia REST Client, Yaak and HTTP Toolkit.
RecipeUI is rethinking how we use API tools like Postman or Insomnia. We're starting off with TypeScript powered API requests and API collections you can run in seconds!

API testing tool. Which allows web developers to create and test custom HTTP requests.



Native desktop app for Windows offers high-performance REST and HTTP API testing, low memory and CPU use, custom methods, portable version, proxy support, multiple environments, code generation, multilingual interface, and import/export in light or dark themes.




NativeRest is the most popular commercial alternative to Kreya.
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.











Hurl is a command line tool that runs HTTP requests defined in a simple plain text format. It can capture values, evaluate queries on headers and body response. It is very versatile: it can be used for both fetching data and testing HTTP sessions.



gRPC is a modern open source high performance Remote Procedure Call (RPC) framework that can run in any environment. It can efficiently connect services in and across data centers with pluggable support for load balancing, tracing, health checking and authentication.

Upcoming API testing tool in beta, built in GoLang, supporting HTTP/gRPC, workspaces, environments, request management, and various content types. Features include dark mode, local data storage, Postman import, environment variable setting, and request chaining.




Stoplight is an API Design, Development, and Documentation platform that enables consistency, reusability, and quality, all with an easy, enjoyable developer experience.

Thunder Client is a hand-crafted lightweight Http Client extension for Visual Studio Code. No separate download needed, Just install the extension from VS Code marketplace.


Opensource C++ alternative to Postman/Insomnia/Hoppscotch for simple HTTP REST API testing.
