JavaScript open-source

Open-source JavaScript projects categorized as open-source

Top 23 JavaScript open-source Projects

  • Uppy

    The next open source file uploader for web browsers :dog:

    Project mention: Pre-made solution for allowing a client to upload a file to my web hosting (via browser, not FTP client)? | /r/web_design | 2023-06-26

    I just found uppy. This will be the next one I use.

  • Boostnote

    This repository is outdated and new Boost Note app is available! We've launched a new Boost Note app which supports real-time collaborative writing.

    Project mention: What happened to boostnote? | /r/opensource | 2022-12-26

    The "legacy application" is still available, but these are the new pricing plans for the maintained version

  • Appwrite

    Appwrite - The open-source backend cloud platform. Add Auth, Databases, Functions, and Storage to your product and build any application at any scale while using your preferred coding languages and tools.

  • flexsearch

    Next-Generation full text search library for Browser and Node.js

    Project mention: Nextra 2 – Next.js Static Site Generator | | 2023-01-23

    Full-text search is powered by FlexSearch and Nextra will index all of your pages at build time ⚡.

  • electerm

    📻Terminal/ssh/telnet/serialport/sftp client(linux, mac, win)

  • windmill

    Open-source developer platform to turn scripts into workflows and UIs. Open-source alternative to Airplane and Retool.

    Project mention: Deno Cron | | 2023-11-29
  • Cider

    A new cross-platform Apple Music experience based on Electron and Vue.js written from scratch with performance in mind. 🚀

    Project mention: Cider: Alternative Apple Music Player | | 2023-08-09
  • VvvebJs

    Drag and drop website builder javascript library.

  • InfluxDB

    Collect and Analyze Billions of Data Points in Real Time. Manage all types of time series data in a single, purpose-built database. Run at any scale in any environment in the cloud, on-premises, or at the edge.

  • GDevelop

    :video_game: Open-source, cross-platform game engine designed to be used by everyone.

    Project mention: Advice on easy-to-learn game engines? Planning a marriage proposal year(s) in advance | /r/gamedev | 2023-12-07 <- free, very easy

  • spacebarchat

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

    Project mention: Addressing the community about changes to our API | /r/reddit | 2023-06-09

    Discord isn't decentralized, it's not private, but it's popular and has free API access! Now, an alternative is a reverse engineered Discord backend (originally Fosscord) called Spacebar. It's not complete, but it's designed to be Discord compatible (talk to Discord peeps), decentralized, and E2E encrypted. They have their own client and early server.

  • Superalgos

    Free, open-source crypto trading bot, automated bitcoin / cryptocurrency trading software, algorithmic trading bots. Visually design your crypto trading bot, leveraging an integrated charting system, data-mining, backtesting, paper trading, and multi-server crypto bot deployments.

    Project mention: Superalgos: NEW Data - star count:3568.0 | /r/algoprojects | 2023-10-28
  • thanks

    🙌 Give thanks to the open source maintainers you depend on! ✨

  • AdguardBrowserExtension

    AdGuard browser extension

    Project mention: What tools do you use to wage war with porn? | /r/NoFapChristians | 2023-10-30

    AdGuard DNS - I found the filtering ability of Covenant Eyes somewhat underwhelming, so instead I use AdGuard DNS. In case you don't know, DNS (Domain Name Server) filtering is incredibly useful for blocking porn. Furthermore, if you pay for AdGuard VPN, you get AdGuard DNS thrown in for free (so you get privacy AND web filtering). AdGuard has other products as well that can be used in conjunction with the VPN and DNS servers. (

  • horizon-ui-chakra

    Horizon UI JavaScript ⭐️ The trendiest & innovative Open Source Admin Template for Chakra UI & React!

  • mediacms

    MediaCMS is a modern, fully featured open source video and media CMS, written in Python/Django and React, featuring a REST API.

    Project mention: PeerTube v6 is out, and powered by your ideas | | 2023-11-28
  • good-first-issue

    Make your first open-source contribution.

    Project mention: Hacktoberfest Pledge 🎉 | | 2023-09-27

    Good First Issue

  • Bento

    🍱 The minimalist, elegant and hackable startpage. (by MiguelRAvila)

    Project mention: Please, help me. | /r/FirefoxCSS | 2023-05-04

    Then tried to install 'Bento' startpage (not a startpage user, so a first here)... decided to go for what looked like the simpler option and install 'Bento' as a 'New Tab Page' using author's recommended 'Custom New Tab Page' extension... from which point the 'howto' instructions are slim to nonexistent... and although tried several different options... no joy... no 'Bento' startpage could be made to appear... sigh. :(

  • YouPHPTube

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

  • Teedy

    Lightweight document management system packed with all the features you can expect from big expensive solutions (by sismics)

    Project mention: Enterprise DMS with email for small business? | /r/selfhosted | 2023-02-05

    I don't know about their features but apart from Mayan and Paperless-NG there are also Docspell, Papermerge, Iodestone, Hermes and Teedy.

  • osgameclones

    Open Source Clones of Popular Games

    Project mention: Ask HN: Released games built on FOSS engines? | | 2023-10-17

    On a similar note, released games with open sourced code: was used on Airship Dragoon, Marble Blast Gold, Penny Arcade Adventures, Legions: Overdrive and descends from the original Tribes engine.

    Hellbreaker, Bit Champs with

    And plenty of successful games with Ogre, including Torchlight:

  • spreed

    🗨️ Nextcloud Talk – chat, video & audio calls for Nextcloud

    Project mention: Ask HN: Does a framework exist for “open-source SaaS”? | | 2023-07-25

    > The calendar app is very functional and allows booking of appointments based on availability similar to Calendly. This is one of many apps within its large and expanding suite.

    Another noteworthy one is Talk:

    It's not quite as good as something like a self-hosted instance of Mattermost or even Rocket.Chat, but honestly if you already have Nextcloud, then it's pretty cool to be able to get something decent like that up and running quickly.

    Ofc that's making Nextcloud a single point of failure in some ways and occasionally things can go sideways with these plugin based platforms (historically applies more to installs of Jenkins, but also have had some performance issues with Nextcloud that had lots of apps, too).

    I still rather like Nextcloud because of being able to just run it on my servers and replace a bunch of other third party cloud platforms and still somehow manage to have good enough uptime and security.

  • Requestly

    🚀 Most Popular developer tool for frontend developers & QAs to debug web and mobile applications. Redirect URL (Switch Environments), Modify Headers, Mock APIs, Modify Response, Insert Scripts & Record web sessions and share it with your teammates for debugging.

    Project mention: 🔥🔥 Our awesome OSS friends 😍 | | 2023-12-06

    Requestly- Makes frontend development cycle 10x faster with API Client, Mock Server, Intercept & Modify HTTP Requests and Session Replays.

  • Collabora Online

    Collabora Online is a collaborative online office suite based on LibreOffice technology. This is also the source for the Collabora Office apps for iOS and Android.

    Project mention: ⟳ 0 apps added, 1 updated at | /r/FDroidUpdates | 2023-09-12

    Collabora Office Snapshot (version 2147483647): Open Source Office Suite

  • covid19_scenarios

    Models of COVID-19 outbreak trajectories and hospital demand

  • Onboard AI

    Learn any GitHub repo in 59 seconds. Onboard AI learns any GitHub repo in minutes and lets you chat with it to locate functionality, understand different parts, and generate new code. Use it for free at

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). The latest post mention was on 2023-12-07.

JavaScript open-source related posts


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

Project Stars
1 Uppy 27,600
2 Boostnote 17,126
3 flexsearch 10,937
4 electerm 9,589
5 windmill 7,494
6 Cider 6,763
7 VvvebJs 6,185
8 GDevelop 5,462
9 spacebarchat 5,066
10 Superalgos 3,625
11 thanks 2,767
12 AdguardBrowserExtension 2,570
13 horizon-ui-chakra 2,063
14 mediacms 2,029
15 good-first-issue 1,979
16 Bento 1,789
17 YouPHPTube 1,789
18 Teedy 1,624
19 osgameclones 1,537
20 spreed 1,493
21 Requestly 1,416
22 Collabora Online 1,380
23 covid19_scenarios 1,367
Learn any GitHub repo in 59 seconds
Onboard AI learns any GitHub repo in minutes and lets you chat with it to locate functionality, understand different parts, and generate new code. Use it for free at