Dev tools · alternatives · 2026

24 alternatives to HTTP Debugger Free

Free version of HTTP Debugger tool

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. HTTP Debugger Free launched in 2019; newer entries below may have overtaken it.

1. 1
   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 →

2. 2
   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 →

3. 3
   HTTP View▲126

   Supercharged HTTP(S) debugging, in one click

   2019 · httptoolkit.com · its alternatives →

4. 4
   HTTPDump▲96

   A simple, beautiful Webhook debugging tool.

   2018 · cyrin.io · its alternatives →

5. 5AW
   A web debugger an ex-Cloudflare team has been working on for 4 years▲886

   Hey HN, I wanted to show you a product a small team and I have been working on for 4 years. https://jam.dev It’s called Jam and it prevents product managers (like I used to be) from being able to create vague and un-reproducible bug tickets (like I used to create). It’s actually really hard as a non-engineer to file useful bug tickets for engineers. Like, sometimes I thought I included a screenshot, but the important information the engineer needed was what was actually right outside the boundary of the screenshot I took. Or I'd write that something "didn't work" but the engineer…

   2024 · its alternatives →

6. 6
   SMTP Debug Tool▲346

   Test and debug your SMTP connection, quickly and for free

   2023 · smtpdebug.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
   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 →

9. 9
   Session Replays by Requestly▲518

   Debug web apps faster with record & replay

   2023 · requestly.com · its alternatives →

10. 10
    JSON Web Token (JWT) Debugger by Rownd▲97

    Next-generation JWT debugger (with ChatGPT)

    2023 · jwt.is · its alternatives →

11. 11
    Replay▲279

    Your time travel debugger

    2021 · replay.io · its alternatives →

12. 12
    NetworkSpy▲89

    HTTP(s) proxy debugger with custom viewer

    Jun 2026 · networkspy.app · its alternatives →

13. 13
    RemoteJS – Remote Browser Debugging▲59

    Connect to remote browser sessions and debug your JavaScript applications.

    2019 · remotejs.com · its alternatives →

14. 14
    HTTP Catcher▲81

    Web debugging proxy for iOS

    2019 · apps.apple.com · its alternatives →

15. 15AP
    A proxy service for debugging HTTP/S traffic▲75

    2017 · debugproxy.com · its alternatives →

16. 16LI
    Log, inspect and debug HTTP/HTTPS requests and webhooks the easy way▲11

    2018 · log.ao.gl · its alternatives →

17. 17
    Proxyman▲196

    An modern and intuitive HTTP debugging proxy

    2019 · proxyman.com · its alternatives →

18. 18
    Mitmproxy 1.0 released, now with a web interface▲248

    2016 · corte.si · its alternatives →

19. 19
    BugBug 2.0▲174

    Automation testing made ultra-simple

    2022 · bugbug.io · its alternatives →

20. 20
    BugBug▲118

    An intuitive tool for end-to-end web app testing

    2021 · bugbug.io · its alternatives →

21. 21
    Letting LLMs Run a Debugger▲147

    Hey HN, I just built an experimental VSCode extension called LLM Debugger. It’s a proof-of-concept that lets a large language model take charge of debugging. Instead of only looking at the static code, the LLM also gets to see the live runtime state—actual variable values, function calls, branch decisions, and more. The idea is to give it enough context to help diagnose issues faster and even generate synthetic data from running programs. Here’s what it does: * Active Debugging: It integrates with Node.js debug sessions to gather runtime info (like variable states and stack traces). *…

    2025 · github.com · its alternatives →

22. 22
    inProxy▲65

    Free Cross-platform Web Debugging and Mocking tool

    2020 · its alternatives →

23. 23
    Sentio Debugger▲80

    First single-stepping debugger with everything you wanted

    2023 · sentio.xyz · its alternatives →

24. 24TP
    Test Post/Get endpoints easily from your browser▲57

    2011 · httpposttool.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 →