Dev tools · alternatives · 2026

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Early access to ready-made, tested API collections for Postman launched in 2017; newer entries below may have overtaken it.

1. 1
   Postman Collections▲302

   Biggest library of ready-made API collections for Postman

   2017 · bubble.io · its alternatives →

2. 2
   Library of API collections for Postman▲77

   Accelerate API development with Postman's all-in-one platform. Streamline collaboration and simplify the API lifecycle for faster, better results. Learn more.

   2017 · postmancollections.com · its alternatives →

3. 3
   Postman for Mac (Beta)▲372

   Build, test, and document your APIs faster

   2016 · postman.com · its alternatives →

4. 4
   Helo▲103

   An independent email API from former Postmark folks

   23d ago · helohq.com · its alternatives →

5. 5
   Run in Postman Button▲106

   Test public APIs with one click

   2016 · postman.com · its alternatives →

6. 6
   Zeroqode API Tools▲130

   Biggest Library of ready-made API Collections for Postman

   2018 · bubble.io · its alternatives →

7. 7
   Postman▲182

   Postman is a powerful HTTP client to test REST API

   2014 · postman.com · its alternatives →

8. 8
   The Changelog - #189: JSON API with Yehuda Katz▲66

   Yehuda's start as a programmer and the spec for building API

   2016 · changelog.com · its alternatives →

9. 9
   Request Eagle▲68

   Fast and open-source Postman alternative

   14d ago · requesteagle.tokarev.work · its alternatives →

10. 10
    APIEval-20▲121

    An open benchmark for AI agents that test APIs

    May 2026 · resources.kusho.ai · its alternatives →

11. 11
    New way to test APIs with OpenAPI and Postman▲80

    Port OpenAPI Specs to Postman Collections, inject test suite and run via Newman 👨🏽‍🚀 - apideck-libraries/portman

    2021 · github.com · its alternatives →

12. 12
    POSTMAN COLLECTIONS▲7

    Biggest Library of Ready-made API Collections for Postman

    2017 · postman.com · its alternatives →

13. 13
    Roley▲26

    API Testing tool built for Teams

    May 2026 · roley.io · its alternatives →

14. 14
    We're building a set of API's to help web developers▲9

    2013 · hoistapps.com · its alternatives →

15. 15
    Postman Sync▲6

    A whole new experience to supercharge your API workflow.

    2015 · its alternatives →

16. 16IM
    I made an API builder for side projects▲6

    2022 · getquickbase.com · its alternatives →

17. 17
    Postman API Platform▲13

    Discover, test, and integrate APIs/LLMs to accelerate agents

    2025 · astropods.com · its alternatives →

18. 18UI
    User innovation with APIs▲6

    2012 · blog.elastic.io · its alternatives →

19. 19WT
    WunderHub – The Package Manager for APIs▲5

    2022 · hub.wundergraph.com · its alternatives →

20. 20SM
    Silk – Markdown driven API tests▲8

    2016 · medium.com · its alternatives →

21. 21OS
    Open-source API-only Builders Forum (beta)▲5

    2022 · youonlygetanapi.com · its alternatives →

22. 22
    API Explorer▲7

    Test, document, and optimize apis effortlessly

    2025 · apiexplorer.vercel.app · its alternatives →

23. 23AB
    A book on Building API's with Rails▲8

    2014 · apionrails.icalialabs.com · its alternatives →

24. 24AD
    API Documentation Gallery▲8

    2017 · apidocs.gallery · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →