Dev tools · alternatives · 2026

This tool lets developers run Elixir code directly in a web browser without installing anything locally. It's designed for programmers learning or experimenting with Elixir, offering an accessible way to test code… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Run Elixir code in your browser launched in 2015; newer entries below may have overtaken it.

1. 1
   Runno▲148

   Make embeddable code snippets that run in the browser

   2021 · runno.dev · its alternatives →

2. 2
   vscode.dev▲305

   Bringing VS Code to the browser

   2021 · vscode.dev · its alternatives →

3. 3
   Open-source in-browser code editor/executor with REPL, 10+ languages▲29

   I am super excited to open-source the code executor behind logicboard.com - an in-browser collaborative code editor. The backend is written in Elixir+Phoenix and implements a WebSocket API to execute code in docker containers. Next steps include making this more secure, I am considering Google's gVisor to implement better isolation between containers and the host kernel.

   2023 · github.com · its alternatives →

4. 4
   Claude in Chrome▲491

   Let Claude see, click, type, and navigate in your browser

   Dec 2025 · claude.ai · its alternatives →

5. 5AP
   A playground for in-browser interpreters▲79

   2015 · fatiherikli.github.io · its alternatives →

6. 6
   I wrote a new BitTorrent tracker in Elixir▲394

   Hello everyone! I'm currently in a journey to learn and improve my Elixir and Go skills (my daily job uses C++) and looking through my backlog for projects to take on I decided Elixir is the perfect language to write a highly-parallel BitTorrent tracker. So I have spent my free time these last 3 months writing one! Now I think it has enough features to present it to the world (and a docker image to give it a quick try). I know some people see trackers as relics of the past now that DHT and PEX are common but I think they still serve a purpose in today's Internet (purely talking about public…

   2025 · github.com · its alternatives →

7. 7
   Blisk Browser▲428

   A Chromium-based browser for Web developers

   2016 · blisk.io · its alternatives →

8. 8
   Claude Code on the web▲443

   A new way to delegate coding tasks right from your browser

   2025 · claude.com · its alternatives →

9. 9
   Programming Elixir▲67

   The best way to get started with Elixir.

   2015 · amazon.com · its alternatives →

10. 10
    Code.xyz▲378

    The online code editor for building APIs in a single click.

    2018 · namekeeper.com · its alternatives →

11. 11
    Repl.it Chrome▲173

    Run code anywhere, with just a click 🖱️

    2019 · chromewebstore.google.com · its alternatives →

12. 12RU
    Run unsafe user generated JavaScript in the browser▲113

    I needed a way to let users write JavaScript to create plugins for a site I'm building. I couldn't find a solution I was happy with, so ended up building one that run's it in a web worker on a separate domain from your main site. Hopefully I haven't missed anything. If so, please let me know! My website has an interactive demo you can write code in the browser textarea, and see the output on the right. Interactive Demo: https://workerbox.net/ Github: https://github.com/markwylde/workerbox

    2022 · workerbox.net · its alternatives →

13. 13WE
    WeUseElixir - Elixir project directory▲213

    2025 · weuseelixir.com · its alternatives →

14. 14
    Using Common Lisp from Inside the Browser▲111

    2025 · turtleware.eu · its alternatives →

15. 15
    I built a small browser engine from scratch in C++▲146

    Hi HN! Korean high school senior here, about to start CS in college. I built a browser engine from scratch in C++ to understand how browsers work. First time using C++, 8 weeks of development, lots of debugging—but it works! Features: - HTML parsing with error correction - CSS cascade and inheritance - Block/inline layout engine - Async image loading + caching - Link navigation + history Hardest parts: - String parsing(html, css) - Rendering - Image Caching & Layout Reflowing What I learned (beyond code): - Systematic debugging is crucial - Ship with known bugs rather than chase…

    Jan 2026 · github.com · its alternatives →

16. 16
    Online C/C++ Code Browser▲72

    Codebrowser homepage

    2016 · code.woboq.org · its alternatives →

17. 17
    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 →

18. 18
    Rhine – A typed Elixir-inspired language on LLVM▲81

    🔬 a C++ compiler middle-end, using an LLVM backend - artagnon/rhine

    2016 · github.com · its alternatives →

19. 19
    Cliprun▲110

    Run Python code from any website with a right-click

    2025 · its alternatives →

20. 20
    DevLensPro▲98

    AI-powered debugging for Claude Code. Point, click, fix

    Jan 2026 · devlens.pro · its alternatives →

21. 21
    Expect▲109

    Let agents test your code in a real browser

    Mar 2026 · expect.dev · its alternatives →

22. 22
    A Travis CI Elixir client▲50

    Simple Elixir wrapper for the Travis API. Contribute to kddnewton/travis.ex development by creating an account on GitHub.

    2017 · github.com · its alternatives →

23. 23NM
    Now my pet programming language can run in the browser▲74

    2024 · nbittich.github.io · its alternatives →

24. 24CL
    Codecademy Labs, the easiest way to write, run, and share code online▲83

    2011 · labs.codecademy.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 →