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!

HttpMaster is described as 'Practical and easy-to-use software tool for testing HTTP applications and services' and is a HTTP Client in the development category. There are more than 50 alternatives to HttpMaster for a variety of platforms, including Mac, Linux, Windows, Web-based and Flathub apps. The best HttpMaster alternative is cURL, which is both free and Open Source. Other great apps like HttpMaster are Postman, Insomnia REST Client, Yaak and Fiddler.
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!





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.

Treblle is a federated API Intelligence platform delivering full API visibility, security, and control from one integration point.



ArdorQuery is a cross-platform tool for performing any HTTP(S) endpoints like REST API, HTML, Images, GraphQL, OData etc.

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.

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.



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.








Kreya is a GUI client for gRPC, REST and WebSocket APIs with innovative features for environments, authorizations and more.



