Open Source Projects using JavaScript
A curated collection of the 673 best open source software using JavaScript. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.
Open-source feedback management for product teams
Stars
1,123Last commit
18 hours agoLicense
Apache-2.0
Collect, organize, and prioritize user feedback to build better products. Self-hosted solution for seamless feature request management.
Open Source Alternative to:
Own your SES email analytics, from send to inbox
Stars
920Last commit
2 days agoLicense
Unknown
Track SES deliveries, bounces, opens and clicks in a self-hosted dashboard with real-time search, analytics and reputation monitoring.
Open Source Alternative to:
Your secure French personal cloud for complete data control
Stars
1,270Last commit
12 hours agoLicense
AGPL-3.0
Open-source personal cloud that automatically gathers all your data from third-party services. French-hosted with privacy-first design, no ads, and seamless device sync.
Open Source Alternative to:
Cookieless, privacy-first web analytics without the complexity
Stars
1,186Last commit
5 days agoLicense
AGPL-3.0
Privacy-first web analytics with real-time dashboards, session replays, error tracking, A/B testing, and GDPR compliance out of the box. No cookies, no consent banners.
Open Source Alternative to:
Fast, secure browsing with powerful organization features
Stars
1,070Last commit
3 months agoLicense
GPL-3.0
A modern browser combining minimalist design with smart features like profiles, spaces, and command palette. Full Chrome extension support and privacy-focused browsing.
Open Source Alternative to:
Flexible CMS for developers, powerful for clients
Stars
1,147Last commit
3 days agoLicense
Unknown
A versatile, open-source content management system with a powerful API, modular architecture, and intuitive interface for seamless web development.
Open Source Alternative to:
Build AI agents and automate complex workflows seamlessly
Stars
998Last commit
1 day agoLicense
Apache-2.0
Create intelligent automation workflows combining AI agents with your favorite apps and services. Connect, automate, and scale your operations without complex coding.
Open Source Alternative to:
Open-source email API with enterprise deliverability
Stars
882Last commit
8 days agoLicense
AGPL-3.0
Self-hosted email API alternative to AWS SES & Mailgun. Open-source AGPL-3.0 with enterprise features, automated deliverability, and cloud version coming 2026.
Open Source Alternative to:
Transform your time tracking into actionable insights
Stars
894Last commit
3 months agoLicense
GPL-3.0
Advanced time tracking and productivity analytics tool that captures detailed work patterns, generates comprehensive reports, and helps optimize workflow efficiency.
Open Source Alternative to:
Your personal workspace organizer for maximum productivity
Stars
1,022Last commit
3 months agoLicense
GPL-3.0
Organize projects, tasks, and resources in customizable workspaces. Boost productivity with a unified interface for all your work.
Open Source Alternative to:
Self-hosted encrypted backups with 70+ cloud storage options
Stars
761Last commit
4 days agoLicense
Apache-2.0
Free, open-source backup solution with end-to-end encryption. Self-hosted control, supports 70+ cloud providers, automated incremental backups, and zero vendor lock-in.
Open Source Alternative to:
Secure, deploy, and manage application secrets effortlessly
Stars
912Last commit
2 days agoLicense
MIT
Open source platform for engineering teams to manage secrets and environment variables from development to production, with powerful integrations.
Open Source Alternative to:
Secure secret management with public key encryption
Stars
767Last commit
5 months agoLicense
MPL-2.0
Secure secret management platform with public key encryption, automated rotation, versioning, and real-time collaboration tools for development teams.
Open Source Alternative to:
One self-hosted binary replaces Vercel, Sentry, and analytics tools
Stars
711Last commit
12 hours agoLicense
Apache-2.0
Self-hosted platform for small dev teams combining deployments, error tracking, analytics, session replay, uptime monitoring, and managed databases in one dashboard.
Open Source Alternative to:
Self-hosted email infrastructure for developers
Stars
1,250Last commit
2 years agoLicense
AGPL-3.0
00 is an open-source email API and infrastructure solution that allows developers to own and control their email stack.
Open Source Alternative to:
Privacy-focused translation with offline capabilities
Stars
1,057Last commit
13 days agoLicense
BSD-3-Clause
Full-featured browser extension for translating web pages, text, and subtitles with offline mode, personal dictionary, and custom translator support.
Open Source Alternative to:
Secure open source file storage with end-to-end encryption
Stars
982Last commit
13 hours agoLicense
AGPL-3.0
Open source encrypted data storage solution offering secure file sharing, collaboration tools, and on-premises deployment for professional teams.
Open Source Alternative to:
Schedule posts to every major social network, self-hosted
Stars
580Last commit
2 days agoLicense
AGPL-3.0
Plan, schedule, and auto-publish social media content across 10+ networks with a visual calendar, AI captions, team approvals, and self-hosting support.
Open Source Alternative to:
Offline voice dictation that types into any app
Stars
703Last commit
7 days agoLicense
AGPL-3.0
Dictate into any app on Mac or Windows using on-device AI models. One-time purchase, 99+ languages, no subscription required.
Open Source Alternative to:
A delightfully rich and dynamic link-in-bio.
Stars
795Last commit
1 month agoLicense
MIT
Build a dynamic link-in-bio page with a drag-and-drop editor. Integrate platforms to showcase live content and connect with your audience.
Open Source Alternative to:
Visual regression testing made effortless
Stars
1,683Last commit
4 months agoLicense
MIT
Automated visual testing tool that detects UI changes, ensures consistency, and accelerates development workflows.
Open Source Alternative to:
Revolutionizing data processing with Compute Over Data
Stars
871Last commit
2 days agoLicense
Apache-2.0
Bacalhau is an open-source platform for fast, cost-effective, and secure distributed computing, seamlessly integrating with Docker and WebAssembly workflows.
Dictate faster and control your Mac with voice
Stars
622Last commit
14 days agoLicense
MIT
Free, open-source macOS voice assistant that transcribes speech, applies AI transformations, and controls apps hands-free. No subscription, no training required.
Open Source Alternative to:
Simplify server management with an intuitive interface
Stars
740Last commit
13 hours agoLicense
MIT
A user-friendly, open-source control panel for effortless server administration, designed for both beginners and experts.
Open Source Alternative to:
TypeScript framework for building autonomous AI agents
Stars
619Last commit
27 days agoLicense
Apache-2.0
Open-source TypeScript runtime for autonomous AI agents with cognitive memory, multi-agent orchestration, runtime tool generation, and support for 21 LLM providers.
AI coding agent that sees your live app and edits code
Stars
685Last commit
12 hours agoLicense
Apache-2.0
Open-source AI coding agent that runs in your browser, sees your live DOM and app state, and makes real code edits from plain English descriptions.
Open Source Alternative to:
AI-native support infrastructure for modern SaaS
Stars
714Last commit
1 month agoLicense
AGPL-3.0
Open-source support platform combining AI and human agents. React components with shadcn/ui design philosophy, styled with Tailwind CSS for NextJS apps.
Open Source Alternative to:
Beautiful Kanban boards with seamless payment integration
Stars
652Last commit
27 days agoLicense
MIT
Organize projects with intuitive Kanban boards, powered by Supabase backend and Stripe payment processing for complete project management workflow.
Open Source Alternative to:
Feature management with GitOps for developers
Stars
807Last commit
3 days agoLicense
MIT
Featurevisor is an open-source tool for managing feature flags, experiments, and remote configuration directly from your Git repository.
Open Source Alternative to:
Self-hosted screen recording for seamless collaboration
Stars
1,017Last commit
2 years agoLicense
AGPL-3.0
Effortlessly create, share, and collaborate with screen recordings. Control your data with self-hosting or our secure cloud option.
Open Source Alternative to:
Build complete web apps with integrated graph database
Stars
829Last commit
2 days agoLicense
Unknown
Open-source low-code platform combining Neo4j graph database, visual schema editor, automatic REST APIs, and page rendering in one self-hosted environment.
Your content engine for growing on Twitter at scale
Stars
764Last commit
9 months agoLicense
AGPL-3.0
Create, schedule & manage Twitter content at scale with AI assistance, beautiful visuals, and multi-account support. Perfect for busy founders.
Open Source Alternative to:
Persistent cloud VMs that hibernate and wake in seconds
Stars
504Last commit
19 hours agoLicense
Apache-2.0
Provides always-on virtual machines for AI agents with full OS access, persistent state, elastic CPU/memory resizing, and instant checkpoints.
Open Source Alternative to:
Complete password control, zero cloud dependency
Stars
532Last commit
20 days agoLicense
Apache-2.0
Open-source password manager with peer-to-peer syncing, local storage, and end-to-end encryption. No cloud servers, complete privacy control across devices.
Open Source Alternative to:
Visual website builder and CMS you can self-host
Stars
292Last commit
1 day agoLicense
MIT
Build, manage, and host custom websites with a visual drag-and-drop builder and CMS. Self-host free or use managed cloud hosting.
Open Source Alternative to:
Build and deploy AI agents through visual workflows
Stars
554Last commit
3 days agoLicense
Apache-2.0
Create powerful AI agents using an intuitive node-based interface that connects multiple LLMs and data sources for automated documentation and development workflows.
Real-time fraud detection and AML compliance engine
Stars
592Last commit
10 days agoLicense
Elastic-2.0
An open-source platform that enables fintech companies to monitor transactions and user activity, detect suspicious behaviors, and automate fraud prevention in real-time.
Open Source Alternative to:
Take control of your finances, paycheck by paycheck
Stars
679Last commit
18 hours agoLicense
FSL-1.1-MIT
Manage your money confidently with monetr, putting aside what you need and spending what you want
Open Source Alternative to:
S3-compatible object storage built with Swift
Stars
521Last commit
4 days agoLicense
Apache-2.0
Self-hostable, Apache 2.0-licensed object storage with S3 compatibility, a built-in web console, and horizontal scaling from single node to sharded cluster.
Open Source Alternative to:
Secure open source email with advanced encryption & AI
Stars
651Last commit
17 hours agoLicense
AGPL-3.0
Open source professional email solution with PGP encryption, JMAP protocol, AI-powered responses, and advanced antispam protection. Control your data privately.
Open Source Alternative to:
Messaging SDK with AI agents for web, iOS, and Android
Stars
544Last commit
1 day agoLicense
Apache-2.0
Build branded chat apps with AI agents, group messaging, document exchange, and digital wallets using React and React Native components.
Open Source Alternative to:
Open source company management for high-performance startups
Stars
545Last commit
22 hours agoLicense
Apache-2.0
Operately is an open source platform that centralizes projects, goals, and processes, helping startups run efficiently without a COO.
Open Source Alternative to:
Docmost – Open-source wiki software with real-time collaboration, diagrams, AI, SSO, RBAC permissions and more.
Docmost
CodeRabbit
Sevalla