Dev tools · alternatives · 2026

24 alternatives to StopLight

The easiest way to test, debug, and share your web APIs

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. StopLight launched in 2014; newer entries below may have overtaken it.

1. 1
   StopLight▲137

   Mock, document, and test your way to API nirvana.

   2016 · stoplight.io · its alternatives →

2. 2
   Stoplight.io▲84

   Supercharge your API strategy

   2016 · stoplight.io · its alternatives →

3. 3
   Stoplight – Visual API Tooling▲57

   With Stoplight, you can create OpenAPI descriptions, documentation, and mock servers much faster than other API tools — with no specialized knowledge required — all in one centralized platform.

   2016 · stoplight.io · its alternatives →

4. 4
   API Tester▲209

   The easiest way to test APIs

   2017 · its alternatives →

5. 5
   AppEnlight▲61

   Performance and error monitoring

   2014 · appenlight.com · its alternatives →

6. 6
   Simply Testable▲105

   Free one-click full-site frontend web testing

   2014 · its alternatives →

7. 7
   Blitz▲127

   Performance testing on websites, web apps & REST APIs

   2015 · blitz.io · its alternatives →

8. 8
   API Changelog▲191

   APIs change. Don't get caught off guard.

   2014 · apichangelog.substack.com · its alternatives →

9. 9
   Chrome Experiments▲137

   Showcase of web experiments written by creative coders

   2015 · experiments.withgoogle.com · its alternatives →

10. 10
    Light-Bot▲84

    Programming Apps Teaching the Basics of Code

    2015 · lightbot.com · its alternatives →

11. 11
    Ghost Inspector▲80

    Automated browser testing from the cloud

    2014 · ghostinspector.com · its alternatives →

12. 12
    Light▲86

    One Stop Solution for Collaboration

    2022 · its alternatives →

13. 13
    CODY▲136

    Free library of HTML, CSS, & JS nuggets

    2014 · codyhouse.co · its alternatives →

14. 14
    Lamplighter▲61

    Monitor all your sites in one place.

    2014 · lamplighter.io · its alternatives →

15. 15
    Test Cafe▲92

    Automated browser testing

    2016 · devexpress.github.io · its alternatives →

16. 16
    Assertible▲50

    The easiest way to test and monitor your APIs

    2016 · assertible.com · its alternatives →

17. 17
    Glimpse▲70

    The Diagnostics platform of the web

    2015 · xcor.com · its alternatives →

18. 18
    Trialfire▲74

    Point and click web analytics

    2014 · trialfire.com · its alternatives →

19. 19
    Webmon▲74

    Website monitoring & escalation service

    2014 · its alternatives →

20. 20
    Emberlight▲111

    Turn any light into a smart light

    2014 · collab-land-rares.com · its alternatives →

21. 21
    Limitless▲90

    A productivity companion for Chrome

    2013 · chromewebstore.google.com · its alternatives →

22. 22
    Socialight.io▲83

    Social media search & analytics for pros and the rest of us

    2014 · socialight.io · its alternatives →

23. 23
    Runscope▲115

    Automated API Testing and Monitoring

    2014 · runscope.com · its alternatives →

24. 24
    Built With▲95

    See Technologies Behind Websites in Real-Time

    2014 · chromewebstore.google.com · 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 →