Dev tools · alternatives · 2026

24 alternatives to Mancy – A Cross-Platform JavaScript REPL

>_ Electron based NodeJS REPL :see_no_evil:. Contribute to princejwesley/Mancy development by creating an account on GitHub.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Mancy – A Cross-Platform JavaScript REPL launched in 2015; newer entries below may have overtaken it.

1. 1
   Mancy▲3

   A cross platform NodeJS REPL application

   2016 · mancy-re.pl · its alternatives →

2. 2
   Electron 1.0▲647

   Build cross platform desktop apps

   2016 · electronjs.org · its alternatives →

3. 3
   Repl.it▲399

   Code and deploy apps in any language right from your browser

   2018 · replit.com · its alternatives →

4. 4
   Shelgon: A Framework for Building Interactive REPL Shells in Rust▲130

   I've been working on Shelgon, a framework that lets you build your own custom REPL shells and interactive CLI applications in Rust. You can use Shelgon to: - Create a custom shell with only a few lines of code - Build interactive debugging tools with persistent state between commands - Develop domain-specific language interpreters with shell-like interfaces - Add REPL capabilities to existing applications Getting started is straightforward - implement a single trait that handles your command execution logic, and Shelgon takes care of the terminal UI, input handling, and async runtime…

   2025 · github.com · its alternatives →

5. 5TA
   Tonic – A data visualizing REPL for Node.js▲342

   2015 · tonicdev.com · its alternatives →

6. 6
   Nodebook – Minimalist Node REPL with Web UI▲69

   Nodebook - Multi-Lang Web REPL + CLI Code runner. Contribute to netgusto/nodebook development by creating an account on GitHub.

   2018 · github.com · its alternatives →

7. 7
   Relace Repos▲294

   GitHub for Agents

   2025 · relace.ai · its alternatives →

8. 8HN
   Hacker News Clone – Clojure, GraphQL Learning Project▲179

   I have ported "The Fullstack Tutorial for GraphQL" series, https://www.howtographql.com/, from Javascript to Clojure/script. Blog post: https://promesante.github.io/2019/08/14/clojure_graphql_full... Source code GitHub repo: https://github.com/promesante/hn-clj-pedestal-re-frame Suggestions and corrections, more than welcome.

   2019 · its alternatives →

9. 9
   The Road to GraphQL▲122

   Your journey to master pragmatic GraphQL in JavaScript

   2018 · robinwieruch.de · its alternatives →

10. 10WB
    Web-based CoffeeScript REPL/console▲36

    2012 · larryng.github.com · its alternatives →

11. 11
    REPL-Driven Development for JavaScript▲20

    Lisp-inspired interactive REPL editor tools for Javascript

    2022 · github.com · its alternatives →

12. 12
    repl.it▲109

    Online code repl for pretty much any language.

    2015 · replit.com · its alternatives →

13. 13
    repl.it — A client-side web REPL for 15+ languages▲27

    Describe what you want. Replit builds it. Get a working app or website in minutes. No coding required.

    2011 · repl.it · its alternatives →

14. 14
    Building an HTML5 Desktop environment with a minimal server component▲68

    Not really an oprating system, Just a pile of javascript pretending to be a Desktop Environment - Lerc/notanos

    2013 · github.com · its alternatives →

15. 15
    Neo.mjs – Webworker-driven UI framework▲54

    Neo.mjs is a self-evolving software organism: a professional end-to-end AI engineering team whose cross-model swarm inhabits live apps via Neural Link, Active Hybrid GraphRAG, DreamService, and self-healing loops. - neo/README.md at dev · neomjs/neo

    2020 · github.com · its alternatives →

16. 16
    Janeway – A more mouse-driven, curses-based Node.js console▲25

    🌌 A Node.js console REPL with object inspection and many other features - 11ways/janeway

    2016 · github.com · its alternatives →

17. 17
    6to5 – Turn ES6 code into vanilla ES5 with source maps and no runtime▲48

    🐠 Babel is a compiler for writing next generation JavaScript. - babel/babel

    2014 · github.com · its alternatives →

18. 18TJ
    Titan – JavaScript-first framework that compiles into a Rust server▲49

    Hi HN, I built Titan, a backend framework where you write routes and logic in JavaScript, and the CLI compiles everything into a single Rust + Axum binary using the Boa JS engine. No Node.js is required in production. The idea is to keep JS developer experience while getting Rust performance and a self-contained deployable server. Current features: JS route DSL Action system mapped to Rust esbuild bundling Generated Rust server with Axum Hot-reload dev server Single-binary output Repo: https://github.com/ezet-galaxy/-ezetgalaxy-titan Would love feedback on the…

    Dec 2025 · npmjs.com · its alternatives →

19. 19RJ
    ReplPad – Javascript Repl/Scratchpad▲54

    2021 · replpad.com · its alternatives →

20. 20
    REPL JS▲8

    An online JavaScript editor for tinkering and testing

    2018 · repljs.com · its alternatives →

21. 21
    REPL for Your Firebase Cloud Functions▲27

    2020 · github.com · its alternatives →

22. 22
    Theory.js – Abstraction layer for cross-platform JavaScript▲28

    Abstraction layer for cross platform JavaScript. Contribute to amark/theory development by creating an account on GitHub.

    2013 · github.com · its alternatives →

23. 23
    A django-inspired JavaScript templating system▲14

    Spicy templating for node and the browser inspired by Twig, Dust.JS and Hogan.JS - deoxxa/node-ginger

    2012 · github.com · its alternatives →

24. 24
    Nodebook – Multi-Language REPL with Web UI▲16

    Nodebook - Multi-Lang Web REPL + CLI Code runner. Contribute to netgusto/nodebook development by creating an account on GitHub.

    2018 · github.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 →