Postman AlternativesOnly apps categorised as Uptime Monitor Services

The best Uptime Monitor alternative to Postman is Treblle, which is free. If that doesn't suit you, our users have ranked more than 100 alternatives to Postman and three of them are Uptime Monitor Services so hopefully you can find a suitable replacement. Other interesting Uptime Monitor Service alternatives to Postman are Assertible and Flowtest.

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Postman alternatives are mainly API Clients, but if you're looking for Error Loggers or HTTP Clients you can filter on that. Other popular filters include Web Development, Online, Open Source, Linux, Mac, Android and Windows. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Postman.
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Alternatives list

  1. Treblle icon
     3 likes

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

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Software as a Service (SaaS)
     
  2. Assertible icon
     5 likes

    Assertible is the easiest way to test and monitor your APIs and helps reduce bugs in web apps by providing tools to continuously validate endpoints and responses with a flexible interface to run your tests any time and place.

    Cost / License

    • Freemium
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
     
  3. Flowtest icon
     Like

    Create multi-step HTTP API checks in a visual editor by chaining requests, extracting response values, applying conditional logic, and setting assertions. Runs can be scheduled or triggered in CI/CD, logging payloads, assertion results, and timings for debugging.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Online
    • Software as a Service (SaaS)
     
3 of 3 Postman alternatives