Dev tools · alternatives · 2026

24 alternatives to HTTP Mock – Intercept, debug and mock HTTP(S) with zero setup

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

HTTP Mock is a developer tool for intercepting, debugging, and mocking HTTP and HTTPS traffic. It requires no initial configuration to get started. The tool is designed for developers who need to test applications… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. HTTP Mock – Intercept, debug and mock HTTP(S) with zero setup launched in 2019; newer entries below may have overtaken it.

1. 1MO
   Mockit – Open-source app to create and configure HTTP mocked endpoints▲158

   2019 · mockit.netlify.com · its alternatives →

2. 2
   HTTP Mock▲22

   Intercept, debug & mock HTTP(S) with zero setup

   2019 · httptoolkit.com · its alternatives →

3. 3
   inProxy▲65

   Free Cross-platform Web Debugging and Mocking tool

   2020 · its alternatives →

4. 4
   Hurl – Run and test HTTP requests with plain text, curl and Rust▲223

   Hurl, run and test HTTP requests with plain text and curl. Hurl can run fast automated integration tests.

   2021 · hurl.dev · its alternatives →

5. 5
   Mockoon – mock REST APIs in seconds▲68

   Mockoon is the easiest and quickest way to run mock REST API servers. No remote deployment, no account required, free, open source and cross-platform.

   2017 · mockoon.com · its alternatives →

6. 6
   Httpdbg – A tool to trace the HTTP requests sent by your Python code▲200

   Hi, I created httpdbg, a tool for Python developers to easily debug HTTP(S) client requests in Python programs. I developed it because I needed a tool that could help me trace the HTTP requests sent by my tests back to the corresponding methods in our API client. The goal of this tool is to simplify the debugging process, so I designed it to be as simple as possible. It requires no external dependencies, no setup, no superuser privileges, and no code modifications. I'm sharing it with you today because I use it regularly, and it seems like others have found it useful too—so it might be…

   2024 · github.com · its alternatives →

7. 7IR
   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 →

8. 8
   Mockaroo▲354

   A realistic data generator to test your app

   2015 · mockaroo.com · its alternatives →

9. 9
   Mocklets▲82

   A HTTP-based API simulator to assist parallel development 🛠️

   2018 · mocklets.com · its alternatives →

10. 10
    Mocktail – Free, open-source mock API server with a built-in dashboard▲25

    Hi HN, I built the first version of Mocktail years ago. I recently came back to the project, and after a pretty substantial rebuild, v4 is now out. Mocktail is a free and open-source, self-hosted mock API server with a built-in dashboard and database, packaged as a single ~25 MB binary. You can run it locally or on your own infrastructure — no account or hosted service required. You can define endpoints and responses, generate realistic data per request, customize headers, status codes and latency, and inspect incoming requests in real time. With v4, I also added MCP support, so coding…

    Aug 2026 · getmocktail.com · its alternatives →

11. 11
    We’re open-sourcing Requestly - HTTP debugging proxy for Web and Mobile▲54

    Hey HN! We’ve open-sourced Requestly (https://github.com/requestly/requestly) - A network debugging proxy for web & mobile apps. Requestly intercepts all HTTP(s) requests & responses and provides full control to developers to modify the request/response like rewriting request URL to hit different environment or returning different response for APIs/scripts. In addition to HTTP(s) interception & modification capabilities, Requestly also offers Mock Server [0] & recording the browser sessions [1] with video, console logs, & network logs stitched together. We use…

    2023 · github.com · its alternatives →

12. 12
    Proxyman▲196

    An modern and intuitive HTTP debugging proxy

    2019 · proxyman.com · its alternatives →

13. 13
    MockRTC – a mock peer and MitM proxy library for WebRTC▲30

    Powerful friendly WebRTC mock peer & proxy. Contribute to httptoolkit/mockrtc development by creating an account on GitHub.

    2022 · github.com · its alternatives →

14. 14
    Mock Studio▲3

    Hi HN, I built this after using Requestly, Mokku, Mockiato, Tweak, and Mockoon. Each one either paywalled the features I actually needed, required a separate server running on my machine, or just didn't fit the way I work. The browser is already open. DevTools is already open. I wanted the mocking to live there too, not in a separate app I have to remember to start. So roughly a month ago, I started building my own tools. It intercepts network requests at the browser level and lets you swap the response, status code, headers, body without touching your code or spinning up anything.…

    Feb 2026 · mockstudio.app · its alternatives →

15. 15
    Mockoon▲89

    Mock servers in seconds

    2017 · mockoon.com · its alternatives →

16. 16AP
    A proxy service for debugging HTTP/S traffic▲75

    2017 · debugproxy.com · its alternatives →

17. 17
    X-Ray Debugging for HTTP▲16

    HTTP Toolkit is a suite of open-source & cross-platform tools for developing, debugging & testing anything using HTTP. It lets you intercept HTTP(S) with one...

    2019 · httptoolkit.tech · its alternatives →

18. 18
    MockIPFS – a mock node and MitM proxy for IPFS testing and debugging▲29

    Powerful friendly IPFS mock node & proxy. Contribute to httptoolkit/mockipfs development by creating an account on GitHub.

    2022 · github.com · its alternatives →

19. 19AS
    A Swiss army knife for testing HTTP from the terminal▲110

    Hiya HN! Just released Artillery Probe - a Swiss army knife for testing HTTP from the CLI. Think mini-curl with better UX for common use-cases, plus a couple of extra features. Would love for you to try it and give some feedback! https://www.artillery.io/blog/swiss-army-knife-for-http-testing and: npm install artillery@latest What does it do? - First of all, it's a HTTP client! It does all the usual stuff you'd expect from a HTTP client... HTTP methods, request bodies, custom headers, forms, Basic Auth etc. - Got some JSON or XML back? It'll pretty-print it, and syntax…

    2022 · its alternatives →

20. 20
    HTTPretty, an easy way to mock http requests in python▲97

    Bid on the RGP-Domain falcao.it. Bid now from €10 and secure the domain at an early stage!

    2012 · falcao.it · its alternatives →

21. 21
    Interceptor – mock AJAX requests at the browser level▲60

    Introducing Interceptor - A browser extension that mocks backend responses and how to use it.

    2018 · crypt.codemancers.com · its alternatives →

22. 22
    Mockhub▲2

    Mockhub allows you to create HTTP mocks.

    2018 · mockhub.io · its alternatives →

23. 23MS
    Mocktastic – Simple, Offline mock REST APIs for your entire team▲43

    2018 · mocktastic.com · its alternatives →

24. 24
    API Interceptor, Mocker and Tester▲2

    Intercept, modify, mock and test HTTP requests with ease

    May 2026 · 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 →