Dev tools · alternatives · 2026

24 alternatives to RequestResponse.app

A simple tool for testing API requests (no account needed)

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. RequestResponse.app launched in 2024; newer entries below may have overtaken it.

1. 1
   Endpoints▲114

   View and respond to requests on an HTTP endpoint

   2018 · its alternatives →

2. 2
   HTTP Response API▲102

   Test how your code reacts to varying HTTP responses

   2023 · http.codes · its alternatives →

3. 3
   Request▲5

   Minimal HTTP Client for restful API development and testing.

   2022 · github.com · its alternatives →

4. 4TP
   Test Post/Get endpoints easily from your browser▲57

   2011 · httpposttool.com · its alternatives →

5. 5
   Session Replays by Requestly▲518

   Debug web apps faster with record & replay

   2023 · requestly.com · its alternatives →

6. 6
   API_TESTER▲249

   Test your APIs right from the macOS menu bar

   2025 · apps.apple.com · its alternatives →

7. 7
   GetResponse▲58

   Send emails, create pages, and automate your marketing

   2021 · getresponse.com · its alternatives →

8. 8
   UserTesters.io▲322

   Earn money for testing websites, right from your couch.

   2018 · 123b.global · its alternatives →

9. 9
   Endpoints.dev – Pastebin for HTTP Requests▲201

   Endpoints.dev is for sale on Spaceship. Secure checkout and quick transfer. See all purchase options. No hidden fees.

   2020 · endpoints.dev · its alternatives →

10. 10
    HTTP Mock – Intercept, debug and mock HTTP(S) with zero setup▲341

    Beautiful, cross-platform & open-source tools for debugging, testing and building with HTTP(S), on Windows, Linux & Mac.

    2019 · httptoolkit.tech · its alternatives →

11. 11
    req▲71

    A lightweight, minimal yet powerful API testing tool

    2022 · npmjs.com · its alternatives →

12. 12
    Reffresh▲91

    Simple, no code, mock APIs

    2024 · reffresh.com · its alternatives →

13. 13
    httpbin(1)▲105

    HTTP request and response service

    2014 · httpbin.org · its alternatives →

14. 14
    Requestly 2.0▲112

    Intercept & modify HTTP requests

    2021 · requestly.com · its alternatives →

15. 15
    Simple HTTP Requests▲3

    Simple HTTP POST And GET Requests For API Testing

    2016 · archive.codepunker.com · its alternatives →

16. 16
    Reqres▲131

    A hosted REST-API for testing your front-end against

    2014 · its alternatives →

17. 17
    HTTP Request Online▲5

    HTTP Request Online - Free API Testing Tool

    Dec 2025 · httprequest.net · its alternatives →

18. 18
    ModResponse – Mock, modify, and replay HTTP response▲16

    2022 · chrome.google.com · its alternatives →

19. 19
    Responsinator▲64

    Designed to test responsive websites on different devices.

    2015 · its alternatives →

20. 20
    HTTP Prompt▲128

    An interactive command-line HTTP client

    2016 · github.com · its alternatives →

21. 21
    ApiHome▲73

    Home of API testing

    2022 · apihome.io · its alternatives →

22. 22MN
    My new project - ask.io▲206

    2013 · ask.io · its alternatives →

23. 23
    Responsivize▲109

    A must-have tool to develop responsive websites

    2021 · virejdasani.github.io · its alternatives →

24. 24
    ReqRes▲87

    A hosted REST-API ready to respond to your AJAX requests.

    2015 · reqres.in · 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 →