JavaScript Language

Open-source JavaScript projects categorized as Language
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Top 23 JavaScript Language Projects

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Language

  1. awesome-cheatsheets

    👩‍💻👨‍💻 Awesome cheatsheets for popular programming languages, frameworks and development tools. They include everything you should know in one single file.

  2. Kargo

    Stop Scripting Promotions. Start Shipping with Kargo. Kargo automates promotion across dev, staging, and prod with approval gates and verification. Open source, built by the team behind Argo CD. Download now.

    Kargo logo

  3. less.js

    Less. The dynamic stylesheet language.

  4. corpora

    A collection of small corpuses of interesting data for the creation of bots and similar stuff.

  5. proselint

    [Mirror] A linter for prose.

  6. franc

    Natural language detection

  7. yomitan

    Pop-up dictionary browser extension for language learning. Successor to Yomichan.

  8. pluralize

    Pluralize or singularize any word based on a count

  9. AppSignal

    Monitoring that respects your time & budget. APM, error tracking, and dashboards for modern web apps. Ten-minute setup, transparent flat pricing, and support from engineers who actually use the product.

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  10. Enterprise

    🦄 The Enterprise™ programming language

  11. pyret-lang

    The Pyret language.

  12. fluent.js

    JavaScript implementation of Project Fluent

  13. i18next-browser-languageDetector

    language detector used in browser environment for i18next

  14. clio

    Clio is a functional, parallel, distributed programming language.

  15. LIPS

    Scheme based powerful lisp interpreter in JavaScript

    Project mention: Ask HN: What Are You Working On? (August 2026) | news.ycombinator.com | 2026-08-09

    Resumed my work on continuations and tail call optimization in my Scheme interpreter called LIPS. Just released a new beta version: https://lips.js.org/

  16. js-written-number

    Convert numbers to words - their written form (by yamadapc)

  17. foi-lang

    Foi: a different kind of functional programming language

  18. profane-words

    A very long list of English profanity.

  19. topokanji

    Topologically ordered lists of kanji for effective learning

  20. SoliditySamples

    Solidity Smart Contracts Samples

  21. pronounce

    Never doubt how to pronounce a word. Double-click it and your browser will say it out loud for you!

  22. subscript

    Expression parser / evaluator.

  23. reverso-api

    🌍 Simple JavaScript Reverso API. Context, Spell Check, Synonyms, Translation and Conjugation are currently available.

  24. Lama2

    Free, Lightweight & Collaborative API Client

  25. efficient-language-detector-js

    Fast and accurate natural language detection. Detector written in Javascript. Nito-ELD, ELD.

  26. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

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NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

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Index

What are some of the best open-source Language projects in JavaScript? This list will help you:

# Project Stars
1 awesome-cheatsheets 46,443
2 less.js 17,025
3 corpora 5,108
4 proselint 4,576
5 franc 4,411
6 yomitan 2,821
7 pluralize 2,216
8 Enterprise 1,619
9 pyret-lang 1,129
10 fluent.js 1,007
11 i18next-browser-languageDetector 969
12 clio 929
13 LIPS 506
14 js-written-number 372
15 foi-lang 332
16 profane-words 323
17 topokanji 203
18 SoliditySamples 200
19 pronounce 173
20 subscript 149
21 reverso-api 126
22 Lama2 123
23 efficient-language-detector-js 123

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