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Best JavaScript Open Source Projects

A collection of the best open source software tools written in JavaScript. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.

Favicon of Strapi website

Strapi

The next-gen headless CMS, open-source, javascript, enabling content-rich experiences to be created, managed and exposed to any digital device.

  • Stars

    61,233
  • Forks

    7,635
  • Last commit

    21 hours ago
Favicon of Ghost website

Ghost

Independent technology for modern publishing, memberships, subscriptions and newsletters.

  • Stars

    46,070
  • Forks

    10,060
  • Last commit

    10 hours ago
Favicon of NetData website

NetData

The open-source observability platform everyone needs!

  • Stars

    68,762
  • Forks

    5,766
  • Last commit

    18 hours ago
Favicon of Discourse website

Discourse

A platform for community discussion. Free, open, simple.

  • Stars

    40,917
  • Forks

    8,183
  • Last commit

    11 hours ago
Favicon of Joplin website

Joplin

Joplin - the secure note taking and to-do app with synchronisation capabilities for Windows, macOS, Linux, Android and iOS.

  • Stars

    43,838
  • Forks

    4,723
  • Last commit

    13 hours ago
Favicon of Flowise AI website

Flowise AI

Build LLM Apps Easily. Open source low-code tool for developers to build customized LLM orchestration flow & AI agents.

  • Stars

    26,500
  • Forks

    13,555
  • Last commit

    13 hours ago
Favicon of Odoo website

Odoo

A suite of web based open source business apps.

  • Stars

    35,579
  • Forks

    23,181
  • Last commit

    2 weeks ago
Favicon of Metabase website

Metabase

The simplest, fastest way to get business intelligence and analytics to everyone in your company 😋

  • Stars

    37,079
  • Forks

    4,911
  • Last commit

    11 hours ago
Favicon of WordPress website

WordPress

Open source software which you can use to easily create a beautiful website, blog, or app.

  • Stars

    18,937
  • Forks

    12,399
  • Last commit

    10 hours ago
Favicon of Insomnia website

Insomnia

The open-source, cross-platform API client for GraphQL, REST, WebSockets, SSE and gRPC. With Cloud, Local and Git storage.

  • Stars

    33,434
  • Forks

    1,865
  • Last commit

    19 hours ago
Favicon of ToolJet website

ToolJet

Low-code platform for building business applications. Connect to databases, cloud storages, etc and build apps using drag and drop application builder.

  • Stars

    27,916
  • Forks

    3,391
  • Last commit

    18 hours ago
Favicon of ERPNext website

ERPNext

Free and Open Source Enterprise Resource Planning (ERP)

  • Stars

    17,378
  • Forks

    6,635
  • Last commit

    15 hours ago
Favicon of Penpot website

Penpot

The Open-Source design & prototyping platform

  • Stars

    28,696
  • Forks

    1,396
  • Last commit

    5 days ago
Favicon of Medusa website

Medusa

Building blocks for digital commerce.

  • Stars

    23,493
  • Forks

    2,225
  • Last commit

    16 hours ago
Favicon of Chatwoot website

Chatwoot

Open-source live-chat, email support, omni-channel desk. An alternative to Intercom, Zendesk, Salesforce Service Cloud etc.

  • Stars

    19,420
  • Forks

    3,068
  • Last commit

    2 days ago
Favicon of Bruno website

Bruno

Opensource IDE For Exploring and Testing Api's (lightweight alternative to postman/insomnia)

  • Stars

    21,152
  • Forks

    984
  • Last commit

    1 week ago
Favicon of Pipedream website

Pipedream

Workflow automation for developers. Stop writing boilerplate code, struggling with auth and managing infrastructure. Connect APIs with code when you need it and no code when you don't.

  • Stars

    8,443
  • Forks

    5,267
  • Last commit

    12 hours ago
Favicon of Kap website

Kap

An open source screen recorder

  • Stars

    17,699
  • Forks

    811
  • Last commit

    3 months ago
Favicon of Ntfy website

Ntfy

Send push notifications to your phone or desktop using PUT/POST

  • Stars

    17,040
  • Forks

    645
  • Last commit

    3 weeks ago
Favicon of Listmonk website

Listmonk

Self-hosted newsletter and mailing list manager

  • Stars

    13,772
  • Forks

    1,234
  • Last commit

    1 week ago
Favicon of Actual website

Actual

Actual Budget is a super fast and privacy-focused app for managing your finances.

  • Stars

    12,245
  • Forks

    937
  • Last commit

    19 hours ago
Favicon of Notesnook website

Notesnook

A fully open source & end-to-end encrypted note taking alternative to Evernote.

  • Stars

    8,639
  • Forks

    521
  • Last commit

    6 days ago
Favicon of Countly website

Countly

A product analytics platform that helps teams track, analyze and act-on their user actions and behaviour on mobile, web and desktop applications.

  • Stars

    5,501
  • Forks

    963
  • Last commit

    23 hours ago
Favicon of Fonoster website

Fonoster

The open-source alternative to Twilio. Engage with your customers with voice or messaging with a single, easy-to-use platform.

  • Stars

    6,142
  • Forks

    326
  • Last commit

    1 week ago
Favicon of OpenBlocks website

OpenBlocks

Low code platform to build your client support apps.

  • Stars

    5,641
  • Forks

    330
  • Last commit

    1 year ago
Favicon of Flagsmith website

Flagsmith

Open Source Feature Flagging and Remote Config Service.

  • Stars

    4,490
  • Forks

    335
  • Last commit

    19 hours ago
Favicon of Automatisch website

Automatisch

Automatisch helps you to automate your business processes without coding. Use our affordable cloud solution or self-host on your own servers.

  • Stars

    4,149
  • Forks

    306
  • Last commit

    1 week ago
Favicon of Evidence website

Evidence

Build polished data products with SQL. Evidence is a lightweight framework for building data apps. It's open source and free to get started.

  • Stars

    3,559
  • Forks

    172
  • Last commit

    2 days ago
Favicon of OpenWebAnalytics website

OpenWebAnalytics

Free and open source web analytics framework that lets you stay in control of how you instrument and analyze the use of your websites and application.

  • Stars

    2,409
  • Forks

    447
  • Last commit

    2 months ago
Favicon of OpenSign website

OpenSign

The free & Open Source DocuSign alternative

  • Stars

    2,652
  • Forks

    192
  • Last commit

    22 hours ago
Favicon of Chartbrew website

Chartbrew

Open-source web platform used to create live reporting dashboards from APIs, MongoDB, Firestore, MySQL, PostgreSQL, and more 📈📊

  • Stars

    2,333
  • Forks

    291
  • Last commit

    2 days ago
Favicon of Requestly website

Requestly

Most Popular developer tool for frontend developers & QAs to debug web and mobile applications.

  • Stars

    1,857
  • Forks

    156
  • Last commit

    1 day ago
Favicon of Twake website

Twake

Secure open source collaboration platform to improve organizational productivity.

  • Stars

    1,766
  • Forks

    189
  • Last commit

    3 months ago
Favicon of ProcessWire website

ProcessWire

A friendly and powerful open source CMS with an API that is a joy to use at any scale.

  • Stars

    899
  • Forks

    188
  • Last commit

    8 months ago
Favicon of Polotno Studio website

Polotno Studio

Free online design editor. Create images for social media, youtube previews, facebook covers. Open source Canva alternative

  • Stars

    854
  • Forks

    177
  • Last commit

    11 hours ago
Favicon of LogChimp website

LogChimp

Track your customers feedback to build better products with LogChimp.

  • Stars

    655
  • Forks

    88
  • Last commit

    1 month ago
Favicon of Btw website

Btw

Open source Medium alternative- set up your personal blog in minutes.

  • Stars

    666
  • Forks

    52
  • Last commit

    1 month ago
Favicon of Pika website

Pika

Free screenshot editor for creating beautiful images and mockups

  • Stars

    600
  • Forks

    98
  • Last commit

    3 months ago
Favicon of Streamdal website

Streamdal

Embed privacy controls in your application code to detect PII as it enters and leaves your systems, preventing it from reaching unintended databases, data streams, or pipelines.

  • Stars

    551
  • Forks

    13
  • Last commit

    1 day ago
Favicon of Grev website

Grev

An Open Source AI First alternative to Salesforce. It's what Salesforce would be if it was built today, starting with AI.

  • Stars

    157
  • Forks

    20
  • Last commit

    18 hours ago
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