Top 23 JavaScript Opensource Projects

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1. bruno

   1 112 44,862 9.9 JavaScript

   Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)

   

   Project mention: Deep Dive: How Bruno 1.0 Stores API Tests Locally vs. Postman 11.0 Cloud Sync | dev.to | 2026-04-28

   After 6 months of benchmarking, case study analysis, and real-world testing, our recommendation is clear: choose Bruno 1.0 if you are an engineering team that values performance, Git integration, and zero vendor lock-in. Our data shows Bruno outperforms Postman 11.0 in every local storage metric: 400ms faster startup for 1000+ test suites, 6x lower storage overhead per test, and zero sync latency. The case study above shows teams can save $2k+ per year in licensing costs and $18k+ per year in engineering time by switching to Bruno. For teams with heavy non-technical collaboration needs, or very small test suites (<100 tests), Postman 11.0’s free tier remains a viable option, but we recommend exporting collections to Bruno for all engineering use cases. The API testing landscape is shifting toward local-first tools to avoid cloud vendor lock-in, and Bruno 1.0 is leading that charge. Try Bruno today: download it from https://github.com/usebruno/bruno, and migrate your Postman collections in minutes using the native import tool.

2. SaaSHub

   www.saashub.com featured

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

   

3. spacebarchat

   2 9 6,678 3.2 JavaScript

   📬 Spacebar is a free open source selfhostable discord compatible communication platform

   

4. Hacktoberfest2026

   3 1 2,620 9.9 JavaScript

   Make your first Pull Request on Hacktoberfest 2026. Don't forget to spread love and if you like give us a ⭐️

   

5. Traduora

   4 1 2,122 6.4 JavaScript

   Ever® Traduora™ - Open Translation Management Platform - https://traduora.co

   

6. YouPHPTube

   5 5 2,096 9.5 JavaScript

   Create Your Own Broadcast Network With AVideo Platform Open-Source. OAVP OVP

   

7. web

   6 175 1,816 0.0 JavaScript

   Grow Open Source (by gitcoinco)

   

   Project mention: Tell HN: Phishing campaign claiming to be GitHub Developer Fund | news.ycombinator.com | 2025-09-19

   The application link is https://gitcoin-developers.com. Obviously copied site from https://gitcoin.co

8. mrm

   7 3 1,649 3.4 JavaScript

   Codemods for your project config files

   

9. ULTIMATE-JAVASCRIPT-PROJECT

   8 5 1,615 7.9 JavaScript

   A comprehensive list of 500 JavaScript project ideas for developers of all skill levels. Open-source and community-driven.

   

10. react-play

    9 12 1,578 7.1 JavaScript

    react-play is an opensource platform that helps you learn ReactJS faster with hands-on practice model. It is a collection of projects that you can use to learn ReactJS.

    

11. covid19_scenarios

    10 1 1,354 0.0 JavaScript

    Models of COVID-19 outbreak trajectories and hospital demand

    

12. FakeTraveler

    11 5 1,314 7.7 JavaScript

    Fake where your phone is located (Mock location for Android).

    

13. CaptfEncoder

    12 6 1,284 3.7 JavaScript

    Captfencoder is opensource a rapid cross platform network security tool suite, providing network security related code conversion, classical cryptography, cryptography, asymmetric encryption, miscellaneous tools, and aggregating all kinds of online tools.

    

14. microrealestate

    13 4 1,078 5.4 JavaScript

    This is an Open Source Real estate management system that helps landlords to manage their rentals and properties

    

15. coinbin

    14 123 955 0.0 JavaScript

    Javascript Bitcoin Wallet. Supports Multisig, Stealth, HD, SegWit, Bech32, Time Locked Addresses, RBF and more!

    

16. Rando.js

    15 3 797 1.9 JavaScript

    The world's easiest, most powerful random function.

    

17. pompelmi

    16 13 647 9.0 JavaScript

    ClamAV antivirus scanning for Node.js — scan file uploads with a single function call. Zero dependencies. Typed Symbol verdicts. Local or Docker/clamd.

    

    Project mention: Why Every AI+Security Tool I Tried Was Lying to Me (And What I Built Instead) | dev.to | 2026-05-18

    I'm Tommaso Bertocchi, a developer and open source creator. I also maintain Pompelmi, a file upload security scanner for Node.js with 600+ GitHub stars.

18. jellyfin-rewind

    17 3 366 8.8 JavaScript

    Review Your Music of 2025. A "Spotify Wrapped"-like app made for people who use Jellyfin for listening to music!

    

19. MS-365-Electron

    18 6 326 0.0 JavaScript

    Unofficial Microsoft 365 Web Desktop Wrapper made with Electron

    

20. VibeNVR

    19 7 317 9.7 JavaScript

    Simple, privacy-respecting local NVR — fast setup, flexible recording, no cloud required

    

    Project mention: VibeNVR v1.28.x: Universal AI Switch, MQTT, and Multi-Model TFLite Support | dev.to | 2026-05-04

21. spurtcommerce

    20 5 276 5.7 JavaScript

    Open-source multi-vendor eCommerce marketplace solution for B2B & B2C, built on Express.js Framework with MySQL and PostgreSQL 🚀

    

22. yet-another-speed-dial

    21 6 274 8.6 JavaScript

    a modern, open source speed dial for chrome, edge and firefox

    

23. eldenring-api

    22 1 269 0.0 JavaScript

    Open source API for the awesome Elden Ring game :)

    

24. Circum Icons

    23 17 184 7.0 JavaScript

    This pack was created following Google material and IBM Carbon design principles. Our main goal was to keep a certain consistency throughout all the set and insure that each icon has the same visual weight.

    

JavaScript Opensource related posts

• Migrating Postman to Bruno in a monorepo: the practical guide

  1 project | dev.to | 28 Apr 2026

• Bruno: The Git-native API client

  1 project | news.ycombinator.com | 25 Mar 2026

• Looking for Contributors and Sponsors – SuggestPilot

  1 project | news.ycombinator.com | 22 Mar 2026

• Show HN: DashClaw – Intercept AI agent actions before they execute

  1 project | news.ycombinator.com | 17 Mar 2026

• Show HN: DashClaw – intercept and audit AI agent decisions before they execute

  1 project | news.ycombinator.com | 13 Mar 2026

• Any Open Source Contributors?

  1 project | news.ycombinator.com | 26 Feb 2026

• BrunoView: A Bruno API Test Log Viewer Built Entirely with AI

  2 projects | dev.to | 11 Feb 2026
• A note from our sponsor - SaaSHub
  www.saashub.com | 16 Jun 2026

  SaaSHub helps you find the best software and product alternatives Learn more →

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