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Alternatives

Products that do what JavaScript+Tcl Remote REPL does

I was recently working in extending the Tcl Duktape extension to support calling Tcl procedures from the JavaScript side -- the result is the unholy amalgamation of Tcl+JavaScript which actually turned out to work quite well. I slapped a REPL and then a WebSocket-based access layer onto it and it can be accessed remotely at: https://rkeene.dev/js-repl/ All the Tcl commands are in the "runtime" object. js> runtime.package.require('sha1') => 2.0.3 js> runtime.sha1.sha1('Hello World') => 0a4d55a8d778e5022fab701977c5d840bbc486d0

  1. 1
    repl.it109

    Online code repl for pretty much any language.

    2015

  2. 2OH

    2017 · repl.it

  3. 3

    Run code anywhere, with just a click 🖱️

    2019

  4. 4EO
  5. 5RJ
  6. 6CX
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  8. 8AR

    2013 · github.com

  9. 9

    Instant code collaboration in the browser

    2018

  10. 10WB

    2012 · larryng.github.com

  11. 11RI
  12. 12TS

    Hi HN, I’m Guillaume, the cofounder of Bearer, an Open Source SAST solution. After launching a few weeks ago here on Hacker News with support for Ruby and JavaScript stacks, I’m happy to report we’ve just released a new version (v1.2) with TypeScript support! In terms of code coverage, we use the same rules already implemented for vanilla JavaScript, but as usual, you can build your own. The rules list is here: https://docs.bearer.com/reference/rules/ It’s a first version for TS, but we believe that thanks to the pre-existing JavaScript support it should already…

    2023

  13. 13IM

    Hi all, powerful open-source Lisp implementations are a dime a dozen, why not try JMurmel instead? The language is inspired by Common Lisp, except it's a Lisp-1, and it is mostly a subset of CLtL-1. Jmurmel can be used standalone with or without the Repl, for "#!"-style hashbang scripts or embedded in a Java program. It features [documentation for the core language](https://jmurmel.github.io/murmel-langref.html) as well as [documentation for the default library](https://jmurmel.github.io/mlib.html), a REPL, an interpreter, a compiler, macros, backquotes,…

    2024 · github.com

  14. 14AF
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  17. 17OS

    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

  18. 18RA

    OP here. I built RepoReaper to solve code context fragmentation in RAG. Unlike standard chat-with-repo tools, it simulates a senior engineer's workflow: it parses Python AST for logic-aware chunking, uses a ReAct loop to JIT-fetch missing file dependencies from GitHub, and employs hybrid search (BM25+Vector). It also generates Mermaid diagrams for architecture visualization. The backend is fully async and persists state via ChromaDB. Link: https://github.com/tzzp1224/RepoReaper

    Jan 2026 · github.com

  19. 19AC

    Hey everyone! I've been working on something called Afterburner: a fast, embeddable JS/TS runtime written in Rust, with a capability sandbox baked right in. Scripts run locked down by default: no network, no filesystem, no environment variables. You explicitly grant whatever access a script actually needs, and every call gets hard caps on CPU, memory, and time. The goal isn't to replace your existing stack. It's to fit cleanly into it: Embed a JS/TS engine in your Rust app with a single crate. Run user scripts, plugins, business rules, or edge logic, each call fully sandboxed. Wrap…

    Jun 2026 · github.com

  20. 20JA
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  22. 22PT

    https://paste.woboq.org/ZuoGr5wfLV.cpp Have fun using, it should be able to link to all symbols that are present on https://code.woboq.org Technically it's a fork of haste-server that does Ajax calls to the code.woboq.org API.

    2016

  23. 23JS

    Relatively simple currently, but figured I'd post for some feedback. I started this project last year but somewhat abandoned it. This feels like something which most likely already exists, but I couldn't find anything at the time I made it. I feel like my write up on the repo is pretty good at explaining the inspiration and purpose of this package; "Let's say you have an API, and you're looking for a method by which you can increase performance of your app via doing transformations of the data directly in the API. In this scenario, you would middleman the API returned data through a Fluxduct…

    2022 · github.com

  24. 24IR

    I love Svelte and GraphQL. I do not like React. So, when I'm building APIs, I cringe when using the official GraphiQL interface. I have free will and a Claude subscription so I made it happen. You can find it on npm as "@eeeooolll/graphiql" (@eol was taken). https://www.npmjs.com/package/@eeeooolll/graphiql I also upgraded my batteries-included GraphQL server to use it. You can find it on JSR. https://jsr.io/@eol/gq

    May 2026 · code.webb.page

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