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Dev tools · alternatives · 2026

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24 alternatives to I made an in-browser code editor with code replay and REPL

I made a Logicboard.com — A collaborative code editor with code-replay feature. Code-replay lets you run the coding session like a movie, I wrote a blog post on how I implemented this: https://logicboard.com/blog/code-replay You can try out the demo here: https://logicboard.com/demo/:replay And play around with the code editor here: https://logicboard.com/demo/ Logicboard also has an REPL shell, just type "start()" and hit enter in the output area.

Logicboard is an in-browser code editor designed for collaborative coding with a distinctive code-replay feature that lets users watch a coding session play back like a movie. It includes a built-in REPL shell for… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. I made an in-browser code editor with code replay and REPL launched in 2023; newer entries below may have overtaken it.

  1. 1

    Programming interviews made easy

    2020 · its alternatives →

  2. 2
    Repl.it▲399

    Code and deploy apps in any language right from your browser

    2018 · replit.com · its alternatives →

  3. 3

    Automated Penetration Testing for AI-Built Apps

    2021 · replay.io · its alternatives →

  4. 4

    Collaborative coding environment for technical interviews

    2020 · codingview.io · its alternatives →

  5. 5

    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 →

  6. 6

    I got tired of sharing AI demos with terminal screenshots or screen recordings. Claude Code already stores full session transcripts locally as JSONL files. Those logs contain everything: prompts, tool calls, thinking blocks, and timestamps. I built a small CLI tool that converts those logs into an interactive HTML replay. You can step through the session, jump through the timeline, expand tool calls, and inspect the full conversation. The output is a single self-contained HTML file — no dependencies. You can email it, host it anywhere, embed it in a blog post, and it works on mobile. Repo:…

    Mar 2026 · github.com · its alternatives →

  7. 7
    Replay▲279

    Your time travel debugger

    2021 · replay.io · its alternatives →

  8. 8

    Zero-setup collaborative cloud IDE for teachers and students

    2021 · replit.com · its alternatives →

  9. 9

    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 →

  10. 10
    Replay QA▲438

    Replay QA tells you what is broken before your users do

    Jul 2026 · qa.replay.io · its alternatives →

  11. 11
    CODECAST▲254

    HTML & CSS editor in your browser with real-time previews

    2015 · codecast.me · its alternatives →

  12. 12
    CodeMic▲52

    With CodeMic you can record and share coding sessions directly inside your editor. Think Asciinema, but for full coding sessions with audio, video, and images. While replaying a session, you can pause at any point, explore the code in your own editor, modify it, and even run it. This makes following tutorials and understanding real codebases much more practical than watching a video. Local first, and open source. p.s. I’ve been working on this for a little over two years and would love to hear your thoughts.

    Feb 2026 · codemic.io · its alternatives →

  13. 13CC
  14. 14
    repl.it▲109

    Online code repl for pretty much any language.

    2015 · replit.com · its alternatives →

  15. 15

    Instant code collaboration in the browser

    2018 · replit.com · its alternatives →

  16. 16

    Fake VS Code editor to browse live cricket scores at work

    2021 · cric-code.pankajtanwar.in · its alternatives →

  17. 17

    SharePad is a free online code interview tool, it has a real-time collaborative code editor, you can run code with built-in compilers.

    2021 · sharepad.io · its alternatives →

  18. 18

    I’m happy to announce the very first version of YouRepl, a Google Chrome extension to watch video-tutorials and write code on repl.it at the same time! Learning programming from videos has never been...

    2018 · yourepl.tumblr.com · its alternatives →

  19. 19

    Fast and easy code reviews you'll love, in your IDE.

    2020 · its alternatives →

  20. 20

    In-browser REPL and compiler for programmer interviews.

    2014 · coderpad.io · its alternatives →

  21. 21

    Small team down here in South New Zealand just launched CodeLink. In short its an IDE (VSCode/JetBrains) plugin that lets you share blocks of code that link directly to the code inside your IDE or repo. We use it all the time and think its pretty nifty tech that lets you understand someone’s code in context very quickly. we’re hoping to keep refining it to make it better and more useful.

    2022 · codelink.dev · its alternatives →

  22. 22

    Run code anywhere, with just a click 🖱️

    2019 · chromewebstore.google.com · its alternatives →

  23. 23

    Generate, refactor & debug with GPT-4. All inside VSCode

    2023 · its alternatives →

  24. 24

    CodeInterview is an Online Code Interview tool & platform where you can do pair programming online for interviews with our online code editor and compilers.

    2015 · codepad.remoteinterview.io · 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 →