API Tester
API Tester is the first mobile app to test any type of API on the go. Including REST, GraphQL, WebSocket, SOAP, JSON RPC, XML, HTTP, HTTPS. .
Some of the top features or benefits of API Tester are: GraphQL, Websocket, and Debugging APIs. You can visit the info page to learn more.
- Free
- iOS
- Android
- Mac OSX
Best API Tester Alternatives & Competitors in 2025
The best API Tester alternatives based on verified products, community votes, reviews and other factors.
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12
Open-Source Alternatives.
Latest update:
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/postman-alternativesThe Collaboration Platform for API Development
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/insomnia-rest-alternativesDesign, debug, test, and mock APIs locally, on Git, or cloud. Build better APIs collaboratively for the most popular protocols with a dev‑friendly UI, built-in automation, and an extensible plugin ecosystem.
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Try for freeFlagsmith lets you manage feature flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features. We're Open Source.
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/rapidapi-for-mac-alternativesPaw is a REST client for Mac.
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/hoppscotch-alternativesOpen source API development ecosystem
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/runscope-alternativesLog, monitor and measure your API usage to solve API problems fast.
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/thunder-client-alternativesRest API client for VS Code, lightweight Postman alternative
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/httpie-for-terminal-alternativesDevelopers all around the world rely on HTTPie for API testing.
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/api-fortress-alternativesAPI performance, accuracy, and uptime testing. Without code.
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/soapui-alternativesSoapUI Pro is one of the most prominent API testing platforms around, allowing developers to quickly prototype the functions of their apps and get them to market with little hassle.
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/httpie-alternativesCLI HTTP that will make you smile. JSON support, syntax highlighting, wget-like downloads, extensions, and more.
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/proxyman-io-alternativesProxyman is a high-performance macOS app, which enables developers to view HTTP/HTTPS requests from apps and domains.
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/hideapikey-alternativesHide your API key from your front end
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/dreamfactory-alternativesDreamFactory is an API management platform used to generate, secure, document, and extend APIs.
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