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.
I made an in-browser code editor with code replay and REPL launched on May 26, 2023 with 87 votes, #739 of 4,910 launches that month and more than 90% of that year's launches.
In plain words
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 interactive code execution. The tool is aimed at developers and teams who want to review, share, and understand how code was written step by step.
written from the facts on this page · September 2026
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