Cost / License
- Free
- Proprietary
United StatesPlatforms
- Visual Studio Code
- Mac
- Windows
- Linux
+2
TestMace Alternatives
TestMace is described as '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' and is a API Client in the development category. There are more than 50 alternatives to TestMace for a variety of platforms, including Mac, Windows, Linux, Web-based and Google Chrome apps. The best TestMace alternative is Postman, which is free. Other great apps like TestMace are Insomnia REST Client, Yaak, Hoppscotch and HTTP Toolkit.
Alternatives list
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.
Cost / License
- Freemium
- Proprietary
Platforms
- Online
- Software as a Service (SaaS)
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.
+4
50 Stoplight alternativesStoplight is an API Design, Development, and Documentation platform that enables consistency, reusability, and quality, all with an easy, enjoyable developer experience.
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.
Cost / License
- Free
- Open Source (Apache-2.0)
Platforms
- Self-Hosted
50 Apidog alternativesDesign and debug APIs in a powerful visual editor. Describe and debug easily with JSON Schema support. Apidog is a complete set of tools that connects the entire API lifecycle, helping R&D teams implement best practices for API Design-first development.
Cost / License
- Freemium
- Proprietary
Application types
Platforms
- Mac
- Windows
- Linux
- Online
+1
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.
+9
HarborClient is a free, open-source desktop API client for macOS, Windows, and Linux. It gives you a familiar Postman-style workspace—collections, environments, request scripts, and a tabbed editor—while keeping your work on your machine or on storage you control.
Cost / License
- Free
- Open Source (MIT)
Platforms
- Windows
- Mac
- Linux
+5
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.
Cost / License
- Free
- Proprietary
Application types
Platforms
- Mac
- Windows
- Linux
- Visual Studio Code
45 REST Client for VS Code alternatives- Send/Cancel/Rerun HTTP request in editor and view response in a separate pane with syntax highlight
Cost / License
- Free
- Open Source
Application types
Alerts
- Discontinued
Platforms
- Mac
- Windows
- Linux
- Chrome OS
- Visual Studio Code
Kreya is a GUI client for gRPC, REST and WebSocket APIs with innovative features for environments, authorizations and more.
+1
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