Life & fun · alternatives · 2026

Jison Debugger is a visual editor designed for developing and testing JavaScript parsers and lexers. It provides an interactive interface where developers can write and debug parser rules and lexical analyzer… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Jison Debugger – A visual editor for JavaScript parsers and lexers launched in 2015; newer entries below may have overtaken it.

1. 1
   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 →

2. 2
   JSONverify▲92

   A web tool that validates and format JSON objects

   2021 · jsonverify.com · its alternatives →

3. 3JA
   Jibber – a seamless way to debug JSON on iOS▲14

   2015 · rebel.tools · its alternatives →

4. 4
   JSON Web Token (JWT) Debugger by Rownd▲97

   Next-generation JWT debugger (with ChatGPT)

   2023 · jwt.is · its alternatives →

5. 5
   Jqview, a simple native GUI for inspecting JSON with jq▲208

   simplest possible native GUI for inspecting JSON objects with jq - fiatjaf/jqview

   2020 · github.com · its alternatives →

6. 6
   Jb / json.bash – Command-line tool (and bash library) that creates JSON▲183

   jb is a UNIX tool that creates JSON, for shell scripts or interactive use. Its "one thing" is to get shell-native data (environment variables, files, program output) to somewhere else, using JSON encapsulate it robustly. I wrote this because I wanted a robust and ergonomic way to create ad-hoc JSON data from the command line and scripts. I wanted errors to not pass silently, not coerce data types, not put secrets into argv. I wanted to leverage shell features/patterns like process substitution, environment variables, reading/streaming from files and null-terminated data. If you…

   2024 · github.com · its alternatives →

7. 7
   JSON Crack▲70

   Simple visualization tool for your JSON data.

   2022 · jsoncrack.com · its alternatives →

8. 8PD
   PDF Debugger – Inspect Structure of PDF Files▲157

   A tool to debug PDF files

   2023 · pdf.hyzyla.dev · its alternatives →

9. 9
   ezjson▲138

   JSON parsing, formatting, sorting and comparing

   2024 · its alternatives →

10. 10
    Power JSON Editor▲77

    A one-stop-shop tool for JSON processing on Mac

    2022 · tickplant.com · its alternatives →

11. 11
    Desed – Debugger for Sed▲115

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

    2020 · github.com · its alternatives →

12. 12
    Debugger that generates video visualizations for algorithm learning▲102

    A simple Python debugger and profiler that generates animated visualizations of program flow, useful for algorithm learning. - CCExtractor/vardbg

    2020 · github.com · its alternatives →

13. 13IM
    I made a tool which fixes broken JSONs▲29

    2024 · prakhar897.github.io · its alternatives →

14. 14IC
    I created a JavaScript debugger for iPhone and Android▲21

    2011 · lexandera.com · its alternatives →

15. 15
    Debucsser, CSS debugging made easy▲63

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

    2018 · github.com · its alternatives →

16. 16
    Command-line JSON processing tool▲32

    Terminal JSON viewer & processor. Contribute to antonmedv/fx development by creating an account on GitHub.

    2018 · github.com · its alternatives →

17. 17
    RemoteJS – Remote Browser Debugging▲59

    Connect to remote browser sessions and debug your JavaScript applications.

    2019 · remotejs.com · its alternatives →

18. 18
    Sentio Debugger▲80

    First single-stepping debugger with everything you wanted

    2023 · sentio.xyz · its alternatives →

19. 19PL
    Parson, lighweight json parser in C▲46

    2012 · kgabis.github.com · its alternatives →

20. 20
    Inspect – DevTool to debug Safari and WebViews on iOS devices▲75

    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 →

21. 21AV
    Abstract Visual Debugger [video]▲37

    2015 · symbolflux.com · its alternatives →

22. 22
    A command-line utility-belt for hacking JSON and Javascript▲68

    Command-line utility-belt for hacking JSON and Javascript. - GitHub - ddopson/underscore-cli at hn

    2012 · github.com · its alternatives →

23. 23
    A simple, visual way of debugging JavaScript▲12

    Colorful javascript debugging on demand. Contribute to b44rd/jsbug development by creating an account on GitHub.

    2016 · github.com · its alternatives →

24. 24
    Jsonviewer▲9

    JSONNinja – A Next‑Gen JSON Viewer for Developers

    2025 · v2.jsonninja.tools · 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 →