Dev tools · alternatives · 2026

24 alternatives to API Tester Pro

Test REST APIs quickly, right in your browser

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1. 1
   API_TESTER▲249

   Test your APIs right from the macOS menu bar

   2025 · apps.apple.com · its alternatives →

2. 2
   Postman▲182

   Postman is a powerful HTTP client to test REST API

   2014 · postman.com · its alternatives →

3. 3
   Postman for Mac (Beta)▲372

   Build, test, and document your APIs faster

   2016 · postman.com · its alternatives →

4. 4
   Mini API Test▲14

   Chrome web store

   2025 · chromewebstore.google.com · its alternatives →

5. 5
   OpenAPI DevTools – Chrome extension that generates an API spec▲811

   Effortlessly discover API behaviour with a Chrome extension that automatically generates OpenAPI specifications in real time for any app or website.

   2023 · github.com · its alternatives →

6. 6
   Apidog Fast Request▲512

   Develop APIs fast + automatically detect endpoints

   2025 · fastrequest.apidog.com · its alternatives →

7. 7
   Apidog▲570

   Development teams often struggle with using multiple tools like Postman and Swagger for API design, development, and testing. This fragmented approach leads to outdated API specs and chaotic collaboration. So we built Apidog: a single, unified API platform for team collaboration. It has a beautiful interface that makes it easy to create API spec, generate request data from API spec, validate responses, create mock data, orchestrate test scenarios, and publish API documentation. Apidog = Postman + Swagger + Mock + JMeter.

   2024 · apidog.com · its alternatives →

8. 8
   UserTesters.io▲322

   Earn money for testing websites, right from your couch.

   2018 · 123b.global · its alternatives →

9. 9
   Mock API Generator▲555

   Generate custom data & API to build apps in less than 30s

   2021 · retool.com · its alternatives →

10. 10TP
    Test Post/Get endpoints easily from your browser▲57

    2011 · httpposttool.com · its alternatives →

11. 11
    API Tester▲209

    The easiest way to test APIs

    2017 · its alternatives →

12. 12
    Test API▲7

    Chrome web store

    2025 · chromewebstore.google.com · its alternatives →

13. 13
    API Sniffer Pro▲2

    A powerful API inspector for developers on Chrome

    Dec 2025 · its alternatives →

14. 14
    Postkit 2.0▲129

    Codepen for mock APIs

    2019 · its alternatives →

15. 15
    Proxy Tester by ScrapeOps▲208

    Benchmark proxies for reliable, target-specific scraping

    Aug 2026 · scrapeops.io · its alternatives →

16. 16
    Rester▲4

    Visual Test Builder for REST APIs.

    2023 · its alternatives →

17. 17
    API Explorer▲7

    Test, document, and optimize apis effortlessly

    2025 · apiexplorer.vercel.app · its alternatives →

18. 18IR
    Intercept.rest – Faster API debugging▲89

    Sharing an internal tool that accelerated my development work 10-fold, especially with API debugging. Thought fellow developers here might find it useful. As a developer, I often have trouble reproducing errors at the client end. https://intercept.rest lets me debug and monitor API requests and responses. It is similar to the Network tab in Chrome Developer Tools but works for any API: mobile apps, webhooks, frontend etc. After I shared it with a close circle of friends, they found it incredibly useful and even found new use cases, I never imagined. Been a long time lurker here and…

    2018 · its alternatives →

19. 19
    F19n Obtrusive Livetest▲82

    Frontend Performance Analysis Tool for Chrome

    2018 · github.com · its alternatives →

20. 20
    ApiHome▲73

    Home of API testing

    2022 · apihome.io · its alternatives →

21. 21
    HttpMaster▲82

    Simple and practical tool for testing web apps & services

    2018 · httpmaster.net · its alternatives →

22. 22
    apiprobe.cloud▲2

    User friendly, In-browser API performance tester.

    2023 · its alternatives →

23. 23
    HTTP Client - API Tester for Chrome

    Test APIs right in your browser. No Postman needed.

    Mar 2026 · chromewebstore.google.com · its alternatives →

24. 24
    WebSlurp▲9

    The Fastest Way to Test API Security Inside Chrome DevTools

    Jul 2026 · webslurp.github.io · 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 →