Dev tools · alternatives · 2026
24 alternatives to Seapie – a Python debugger where breakpoints drop into a REPL
Author here. I started seapie as a reaction to pdb's command-driven interface in 2019. I wanted a breakpoint to simply mean 'open a Python REPL here', with debugging functionality layered on top instead of replacing the REPL. `seapie.breakpoint()` opens a working `>>>` REPL at the current execution state. Any changes to variables or function definitions persist. Debugger state is exposed via built-ins (e.g. `_magic_`), and stepping/frame control/etc is handled via small `!commands`. I've been using this regularly in my own work for a few years now. Happy to answer questions or hear…
Seapie is a Python debugger that opens a standard Python REPL when a breakpoint is triggered, rather than switching to a command-driven interface. It allows developers to inspect and modify variables and define… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1AW
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 →
- 2

Debugging-friendly exceptions for Python. Contribute to cknd/stackprinter development by creating an account on GitHub.
2019 · github.com · its alternatives →
- 3

Hi HN! We’re Adrien and Kanav. We met at our previous job, where we spent about a third of our lives combating a constant firehose of bugs. In the hope of reducing this pain for others in the future, we’re working on automating debugging. We’re currently working on a platform that ingests logs and then automatically reproduces, root causes and ultimately fixes production bugs as they happen. You can see some of our work on this here - https://news.ycombinator.com/item?id=39528087 As we were building the root-cause phase of our automated debugger, we realized that we developed…
2024 · github.com · its alternatives →
- 4SP
2017 · seashells.io · its alternatives →
- 5

Hi! I've been building a debugger on my nights and weekends because it's fun, and I personally need a better debugger for my work. GDB and LLDB pain me greatly; we can and will do better! As explained in the README, it's still very early-days and it's not ready for use yet, but check back often because it's improving all the time! Check out https://calabro.io/uscope for a more detailed explanation. Thanks for taking a look!
2025 · github.com · its alternatives →
- 6

Hi all! A little background: I've been working on natto.dev, a spatial environment for JavaScript. I'm really excited about new interfaces for code (leveraging metaphors we're good at, spatial reasoning, making state visible, design tools, etc). With all the buzz around PyScript, I discovered Pyodide and got it working inside natto. This Python version is a stripped down version of https://natto.dev (eg interactive outputs, multiplayer) so please check that out if this interests you. I'm excited to share this spatial environment for Python. Imagine Jupyter cells arranged on a 2D…
2022 · python.natto.dev · its alternatives →
- 7

Hey! We are presenting CodeTracer - a user-friendly time-traveling debugger designed to support a wide range of programming languages: https://github.com/metacraft-labs/codetracer?tab=readme-ov-f... CodeTracer records the execution of a program into a sharable self-contained trace file. You can load the produced trace files in a GUI environment that allows you to move forward and backward through the execution and to examine the history of all memory locations. They say a picture is worth a thousand words — well, a video is even better! Watch the demo below to see…
2025 · github.com · its alternatives →
- 8

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 →
- 9SP
2017 · sultan.readthedocs.io · its alternatives →
- 10
Clobbr▲444Easy API endpoint load testing without breaking the bank
2023 · clobbr.app · its alternatives →
- 11

local-first semantic code search engine. Contribute to kantord/SeaGOAT development by creating an account on GitHub.
2023 · github.com · its alternatives →
- 12

2014 · github.com · its alternatives →
- 13

DEPCRECATED/UNMAINTAINED - A Python library to make debugging with print statements simpler and more effective. - alixander/PyScribe
2015 · github.com · its alternatives →
- 14

- 15

Quantopian Remote Debugger for Python. Contribute to quantopian/qdb development by creating an account on GitHub.
2014 · github.com · its alternatives →
- 16
Codebuff▲268Better code generation than Cursor, from your CLI
2024 · codebuff.com · its alternatives →
- 17

watchpoints is an easy-to-use, intuitive variable/object monitor tool for python that behaves similar to watchpoints in gdb. - gaogaotiantian/watchpoints
2021 · github.com · its alternatives →
- 18

Hi HN! This is my pet project, written from scratch because there is so much to discover and learn in the process. The focus is on simplicity and incremental updates. Progress is slow because I do not have much spare time to work on this, but I would love to hear some feedback. Regards
2022 · github.com · its alternatives →
- 19

The top-like text-based user interface for Austin. Contribute to P403n1x87/austin-tui development by creating an account on GitHub.
2020 · github.com · its alternatives →
- 20

About a month ago I started a suprisingly-not-that tricky project to build an experimental python repl that I could use instead of bash as a daily shell in windows, mac or linux. It"s more hack-for-exploration than a production ready shell, but here it is! Hope somebody finds it anywhere near as interesting to check out as I found making it. Disclaimer: I know about xonsh and love it (if you haven't heard of it, google it). This project is more pure python and less python and bash interacting - see the readme for more details.
2023 · github.com · its alternatives →
- 21WM
2025 · npmjs.com · its alternatives →
- 22

A dbg(…) macro for C++. Contribute to sharkdp/dbg-macro development by creating an account on GitHub.
2019 · github.com · its alternatives →
- 23

- 24

This project is inspired by some of the asserts in Unreal engine. Due to reliance on core_intrinsics it is necessary to develop using nightly Rust, but there are stubs in place so a production build will not require nightly. I recently released version 0.2 which includes no_std support and adds optional log message arguments to the ensure macro.
2024 · github.com · its alternatives →
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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 →