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Dev tools · alternatives · 2026

24 alternatives to Sentio Debugger

First single-stepping debugger with everything you wanted

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Sentio Debugger launched in 2023; newer entries below may have overtaken it.

  1. 1
    Sentio▲85

    Monitor, analyze, diagnose your Dapps in one place

    2023 · sentio.xyz · its alternatives →

  2. 2AW

    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 →

  3. 3

    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 →

  4. 4

    Automated Penetration Testing for AI-Built Apps

    2021 · replay.io · its alternatives →

  5. 5
    Sentry▲265

    Stop hoping your users will report errors

    2018 · sentry.io · its alternatives →

  6. 6

    Debug web apps faster with record & replay

    2023 · requestly.com · its alternatives →

  7. 7

    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 →

  8. 8
    Sentry▲171

    Real-time crash reporting for the web and apps

    2015 · sentry.io · its alternatives →

  9. 9PM
  10. 10
    Replay▲279

    Your time travel debugger

    2021 · replay.io · its alternatives →

  11. 11

    Debugger for Sed: demystify and debug your sed scripts, from comfort of your terminal. - SoptikHa2/desed

    2020 · github.com · its alternatives →

  12. 12AC

    Practical guides to browser DevTools and AI-assisted debugging — Chrome, Firefox, Safari and Edge. Panels, shortcuts, performance traces and accessibility.

    2014 · devtoolstips.com · its alternatives →

  13. 13
    Luzo▲122

    Design and debug API workflows visually

    Mar 2026 · luzoapi.vercel.app · its alternatives →

  14. 14

    Next-generation JWT debugger (with ChatGPT)

    2023 · jwt.is · its alternatives →

  15. 15

    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 →

  16. 16

    CSS debugging tool with an unpronounceable name. Contribute to lucagez/Debucsser development by creating an account on GitHub.

    2018 · github.com · its alternatives →

  17. 17

    Hey HN, the is Chris, creator of FireDBG. We’ve been working on this debugger just about a year now. Time travel debugging isn’t a new concept, the new idea here is to use call tree visualisation to help us navigate the debug trace. It supports various Linux distros on x64 and macOS on x64 and M1. It’s only available for Rust right now, but we do want to bring this debugging experience to other programming languages. Please give it a try! Would love to know your thoughts. What’s your anecdote in debugging programs? My stupidity is usually in the form of: after a few hours of debugging, I…

    2023 · firedbg.sea-ql.org · its alternatives →

  18. 18
    FlowLens▲134

    Hi HN, We often run into this with coding agents like Claude Code: debugging turns into copy-pasting logs, writing long explanations, and sharing screenshots. FlowLens is an MCP server plus a Chrome extension that captures browser context (video, console, network, user actions, storage) and makes it available to MCP-compatible agents like Claude Code. You can try it here: https://magentic.ai/flowlens Any feedback—good, bad, or brutal—is welcome.

    Dec 2025 · magentic.ai · its alternatives →

  19. 19

    Agent-first mobile web debugging for iOS and Android. Give Claude, Codex, Cursor, and other coding agents real-device DOM, console, network, and screenshots.

    2020 · inspect.dev · its alternatives →

  20. 20

    Rust debugger for Linux x86-64. Contribute to godzie44/BugStalker development by creating an account on GitHub.

    2025 · github.com · its alternatives →

  21. 21PD

    A tool to debug PDF files

    2023 · pdf.hyzyla.dev · its alternatives →

  22. 22

    Connect to remote browser sessions and debug your JavaScript applications.

    2019 · remotejs.com · its alternatives →

  23. 23

    Hey all, I've been working on this side project to get a Cypress.io-like experience, but for Ruby developers. It's plug-n-play with Capybara system tests, with the following features: - visualize assertions/commands as they happen - view all API requests, errors, and logs in the timeline - pause/continue on any step - rewind through history with a recorded video This is brand new, so looking for people to start trying it out and leave feedback.

    2024 · github.com · its alternatives →

  24. 24

    Hi HN, I built this because I got tired of the Claude Code CLI hiding details from me. Recent updates have replaced critical output with summaries like "Read 3 files" or "Edited 2 files". To see what actually happened, I was forced to use `--verbose`, which floods the terminal with unreadable JSON and system prompts. I wanted a middle ground: *Full observability without the noise.* `claude-devtools` is a local Electron app that tails the session logs in `~/.claude/` to reconstruct the execution trace in real-time. *Unlike wrappers, it solves the visibility gap in your native…

    Feb 2026 · 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 →