Alternatives to TestMace for all platforms with any license

Postman

Postman is a tool that facilitates the development and use of APIs. Postman provides all the functionality needed to create or simulate API specifications and use the...

Freemium $ $ $ Mac Windows Linux Web Chrome OS ... Chrome
Development API REST API Api API Management ... Google Chrome Extensions CI/CD Graphical interface SOAP API Version and Source control Add a feature

126 Like
Insomnia REST Client

A powerful REST API Client with cookie management, environment variables, code generation, and authentication for Mac, Window, and Linux.

Freemium $ $ $ Open Source Mac Windows Linux
Lightweight Request Chaining Responsive design Separated workspaces ... Support environment variables Api API Management Cloud sync Code generation Configurable request timeout Developer Tools Electron based GraphQL GraphQL integration Import Curl commands Support for Keyboard Shortcuts Image Preview REST API SSL client certificates SVG Editors Variables Add a feature

86 Like
HTTPie

Modern command line HTTP client – user-friendly curl alternative with intuitive UI, JSON support, syntax highlighting, wget-like downloads, extensions, etc. .

Free Open Source Mac Windows Linux
Command line interface Web Testing Add a feature

34 Like
Paw

Easily craft your HTTP requests, try them, archive them. Setup HTTP Headers, URL parameters, form-encoded POST key-values or text. Get easy-to-read responses with well...

Commercial $ $ $ Mac
Developer Tools Html parsing Request Chaining Add a feature

39 Like
soapUI

Eviware, the maker of soapUI, Web Service Testing Leader soapUI is a tool for functional testing, mainly of web services like SOAP based web services and RESTful web...

Free Open Source Mac Windows Linux
Intuitive Nodes Add a feature

42 Like
Advanced REST Client (ARC)

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

Free Open Source Mac Windows Linux Chrome OS Chrome ... Chromium Chrome Web Store
Full headers control Web tool Developer Tools Electron based ... REST API Add a feature

21 Like
Postwoman

Postwoman is an open-source API request builder. It helps you create your requests faster, saving you precious time on your development. FEATURES - Send requests...

Free Open Source Web Self-Hosted
Ad-free Cross browser testing Websocket streams Cross-platform ... GraphQL API Developer Tools REST API Add a feature

8 Like
RESTer

A REST client for almost any web service (Firefox and Chrome extension).

Free Open Source Mac Windows Linux Chrome Firefox
Api API Management Google Chrome Extensions Firefox Extensions ... Project Organization Variables Add a feature

5 Like
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HTTP Toolkit

HTTP Toolkit is a suite of open-source tools for debugging, testing and building with HTTP(S).

Freemium Open Source Mac Windows Linux Web
Built in docs HTTP mocking One click interception OpenAPI integration ... Performance analysis Themes Debugger Developer Tools Add a feature

9 Like
HttpRequester

A tool for easily making HTTP requests (GET/PUT/POST/DELETE), viewing the responses, and keeping a history of transactions.
- Discontinued
  Doesn't support Firefox WebExtensions: https://github.com/tommut/HttpRequester/issues/43 Also latest commit d62a6ea on Mar 12, 2017.
Free Open Source Mac Windows Linux Firefox
Debugger Firefox Extensions REST API Add a feature

5 Like