Top API Test Automation Tools: Best Postman & Playwright Alternatives

As backend architectures move to microservices, traditional manual scripting is becoming a bottleneck. This list highlights modern API test automation tools that prioritize zero-code regression and automated dependency mocking. Unlike legacy frameworks, these tools use technologies like eBPF and AI to record real-world traffic, eliminating the need for manual test data management and brittle stubs.

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Sophie LaneList by Sophie Lane, last updated 
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  1. Keploy icon

    Keploy

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    Keploy is the first AI-powered test automation platform that uses eBPF to record real API traffic and turn it into test cases.

    Key Benefits:

    Zero-Code: Generates tests and mocks automatically without writing scripts.

    No Manual Mocks: Automatically records database queries (SQL/NoSQL) and external API calls.

    Language Agnostic: Supports Go, Java, Python, and Node.js.

    Best for teams migrating from manual Postman collections to automated regression suites.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Self-Hosted
    • Visual Studio Code
    • Software as a Service (SaaS)
    • Docker
    Front Page
  2. Postman icon

    Postman

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    Collaborative platform for API development providing design, specifications, testing, documentation, and requests with free and paid subscription plans.

    Cost / License

    • Freemium
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Chrome OS
    • Google Chrome
    • Flathub
    • Flatpak
    • Snapcraft
    Postman screenshot 1
    Postman screenshot 1
    Postman screenshot 2
    +3
    Postman screenshot 3
  3. Playwright icon

    Playwright

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    Playwright is a Node library that automates Chromium, WebKit, and Firefox browsers with a single API for reliable web automation.

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    Playwright screenshot 1
    Playwright screenshot 1

A specialized toolkit for backend engineers moving from manual scripting to automated regression. This list compares the next generation of AI-driven traffic recording (Keploy) with Postman and Playwright, focusing on tools that eliminate manual mocking and use eBPF to ensure 100% test coverage without the maintenance overhead of legacy frameworks.

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