Open Source Projects using npm
A curated collection of the 344 best open source software using npm. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.
Turn any website into clean, AI-ready data via API
Stars
Stars growing over the last 30 days193,404Last commit
3 hours agoLicense
AGPL-3.0
API for AI agents to search, scrape, crawl, and interact with the live web, returning clean Markdown, structured JSON, or screenshots from any page.
Open Source Alternative to:
Structured control layer for customer-facing AI agents
Stars
18,305Last commit
8 hours agoLicense
Apache-2.0
A conversational AI server that manages agent behavior through context-aware guidelines, keeping responses consistent, auditable, and aligned at scale.
Open Source Alternative to:
Passkeys, SSO, and MFA without vendor lock-in
Stars
9,044Last commit
2 hours agoLicense
Unknown
Open source authentication platform supporting passkeys, 2FA, SSO, and social login. Self-host or use Hanko Cloud, with full control over your data and no lock-in.
Open Source Alternative to:
Cookie-free web and product analytics, self-hostable
Stars
7,174Last commit
2 hours agoLicense
AGPL-3.0
Open-source analytics platform covering web traffic, custom events, funnels, retention, session replay, and revenue tracking. GDPR-compliant with optional self-hosting.
Open Source Alternative to:
Markdown docs wired into tasks, email, and agents
Stars
Stars growing over the last 30 days4,778Last commit
2 hours agoLicense
AGPL-3.0
Collaborative markdown documents with real-time CRDT editing, AI agent cursors, mention linking, and built-in properties tied to your tasks, channels, and email.
Open Source Alternative to:
Task management with GitHub sync and AI agents for devs
Stars
Stars growing over the last 30 days4,778Last commit
2 hours agoLicense
AGPL-3.0
Task manager built for engineering teams, combining status tracking, priority management, GitHub integration, and AI agents that can close tasks automatically.
Open Source Alternative to:
A self-building CRM powered by your email
Stars
Stars growing over the last 30 days4,778Last commit
2 hours agoLicense
AGPL-3.0
Automatically creates and enriches contacts, companies, and deal threads from your team's email. No data entry, no imports, no admin overhead.
Open Source Alternative to:
Keyboard-first email client with AI, chat, and tasks
Stars
Stars growing over the last 30 days4,778Last commit
2 hours agoLicense
AGPL-3.0
An AI-powered email client that combines inbox management, chat, tasks, and AI agents in one shared workspace, built for keyboard-driven workflows.
Open Source Alternative to:
Team chat with email, tasks, and docs in one workspace
Stars
Stars growing over the last 30 days4,778Last commit
2 hours agoLicense
AGPL-3.0
Team chat app with inline threads, mention-based sharing, a unified inbox for chat and email, and an AI agent that works across your full workspace.
Open Source Alternative to:
Open-source localization platform for multilingual apps
Stars
4,137Last commit
13 hours agoLicense
Apache-2.0
Manage app translations with in-context editing, AI translation, and collaborative tools. Self-hostable and free to start.
Open Source Alternative to:
Managed compliance for SOC 2, ISO 27001, HIPAA, and more
Stars
Stars growing over the last 30 days1,469Last commit
5 hours agoLicense
MIT
Compliance management platform where dedicated compliance officers handle your entire program, from risk assessments to audit coordination, with automated evidence collection.
Open Source Alternative to:
Desktop AI agent with persistent memory across platforms
Stars
Stars growing over the last 30 days255,535Last commit
2 hours agoLicense
MIT
Cross-platform desktop agent from Nous Research that connects to Telegram, Discord, Slack, WhatsApp, and more, with persistent memory, scheduling, and isolated sandboxing.
Open Source Alternative to:
Run open-source LLMs locally on your own machine
Stars
184,066Last commit
3 hours agoLicense
MIT
Runs open-source language models locally with a simple setup, plus optional cloud access for larger models when local hardware isn't enough.
Open Source Alternative to:
One interface for every AI model you run or connect
Stars
156,281Last commit
3 hours agoLicense
BSD-3-Clause
Self-hosted AI platform that connects local and cloud models, extends with Python, and keeps your data under your control.
Open Source Alternative to:
Visual builder for AI agents and RAG pipelines
Stars
155,872Last commit
3 hours agoLicense
MIT
Build, deploy, and iterate on AI agents, RAG applications, and MCP servers using a drag-and-drop visual interface backed by Python.
Open Source Alternative to:
Run LLMs locally with minimal setup, maximum hardware support
Stars
131,833Last commit
3 hours agoLicense
MIT
C/C++ inference engine for large language models, supporting quantization, multi-GPU, Apple Silicon, and an OpenAI-compatible server across a wide range of hardware.
Open Source Alternative to:
Minimal terminal coding agent you can fully customize
Stars
Stars growing over the last 30 days116,679Last commit
3 hours agoLicense
MIT
Terminal-based coding agent with a minimal core, 15+ LLM providers, tree-structured session history, and a TypeScript extension system for building your own workflows.
Open Source Alternative to:
Self-hosted photo and video backup for your own server
Stars
116,765Last commit
2 hours agoLicense
AGPL-3.0
Back up, organize, search, and browse your personal photo and video library on your own server, with no third-party cloud access.
Open Source Alternative to:
Free 2D and 3D game engine for cross-platform projects
Stars
118,751Last commit
8 hours agoLicense
MIT
Build 2D, 3D, and XR games with a full-featured engine that includes its own scripting language, scene editor, and export tools for multiple platforms.
Open Source Alternative to:
Postgres-powered backend platform for production apps
Stars
112,378Last commit
3 hours agoLicense
Apache-2.0
Provides a full backend stack built on Postgres: authentication, auto-generated APIs, edge functions, realtime subscriptions, file storage, and vector search.
Open Source Alternative to:
Autonomous coding agents that complete real engineering tasks
Stars
Stars growing over the last 30 days91,403Last commit
3 hours agoLicense
MIT
AI agent platform that runs autonomous coding agents to plan, write, and ship changes across codebases end-to-end, with support for any model and self-hosted deployment.
Open Source Alternative to:
Self-hosted uptime monitoring with a clean dashboard
Stars
92,679Last commit
10 hours agoLicense
MIT
Monitors websites, APIs, and services with real-time alerts, a status page, and support for dozens of notification channels. Self-hosted and Docker-friendly.
Open Source Alternative to:
Open-source AI coding agent for your editor and terminal
Stars
70,722Last commit
2 hours agoLicense
Apache-2.0
AI coding agent that runs inside VS Code and the terminal, supporting multi-file edits, bash execution, and any LLM provider via bring-your-own-key.
Open Source Alternative to:
AI-powered analytics workspace built for investment teams
Stars
74,474Last commit
2 days agoLicense
AGPL-3.0
Connects proprietary, licensed, and public financial data with AI agents in a self-hostable workspace for asset managers, hedge funds, and banks.
Open Source Alternative to:
Self-serve data exploration and dashboard builder
Stars
75,232Last commit
3 hours agoLicense
Apache-2.0
Connect any SQL database, build charts with drag-and-drop or raw SQL, and publish interactive dashboards without writing application code.
Open Source Alternative to:
Persistent memory layer for AI agents and apps
Stars
67,529Last commit
21 hours agoLicense
Apache-2.0
Adds persistent, searchable memory to AI agents and apps, so they remember user preferences and past interactions across sessions without pipeline changes.
Open Source Alternative to:
LLM gateway for auth, load balancing, and spend tracking
Stars
Stars growing over the last 30 days61,667Last commit
2 hours agoLicense
Unknown
Acts as a unified proxy across 100+ LLMs, normalizing them to the OpenAI format while handling virtual keys, budgets, rate limits, fallbacks, and cost tracking.
Open Source Alternative to:
Self-hosted AI agent for chat, automation, and workflows
Stars
49,219Last commit
3 hours agoLicense
MIT
Lightweight, self-hosted AI agent that runs in a web UI, terminal, or chat app, handling long-running workflows with controlled token budgets.
Open Source Alternative to:
General-purpose AI agent for code, workflows, and more
Stars
55,458Last commit
3 hours agoLicense
Apache-2.0
Local AI agent with a desktop app, CLI, and API that connects to 15+ LLM providers and 70+ extensions for code, research, automation, and data tasks.
Open Source Alternative to:
Deploy apps, databases, and services to your own server
Stars
63,293Last commit
3 hours agoLicense
Apache-2.0
Self-hostable deployment platform that lets you deploy apps, databases, and 280+ one-click services to any server via SSH, with Git integration and automatic SSL.
Open Source Alternative to:
Open-source backend in a single file
Stars
61,511Last commit
6 days agoLicense
MIT
A lightweight, self-hosted backend solution with real-time database, authentication, and file storage capabilities.
Open Source Alternative to:
Self-hosted Bitwarden server that runs lean on your hardware
Stars
69,352Last commit
5 days agoLicense
AGPL-3.0
Unofficial Bitwarden-compatible server written in Rust, built for self-hosting on low-resource hardware without sacrificing client compatibility.
Open Source Alternative to:
One interface for all your AI models and conversations
Stars
Stars growing over the last 30 days46,075Last commit
2 hours agoLicense
MIT
Chat with multiple AI providers through a single self-hostable interface, with support for custom agents, file uploads, plugins, and multi-user access control.
Open Source Alternative to:
Self-hosted Git service for seamless collaboration
Stars
58,588Last commit
3 hours agoLicense
MIT
A lightweight, fast, and customizable Git service that simplifies code hosting and collaboration for teams of all sizes.
Open Source Alternative to:
Self-hosted AI runtime for text, voice, vision, and agents
Stars
49,792Last commit
5 hours agoLicense
MIT
Run LLMs, speech, image generation, and autonomous agents on your own hardware with an OpenAI-compatible API and 60+ swappable backends.
Open Source Alternative to:
A full desktop environment that runs in your browser
Stars
43,828Last commit
2 hours agoLicense
AGPL-3.0
Puter is a cloud-based desktop OS you run in the browser, with built-in apps, file storage, and support for hosting web apps and sites.
Open Source Alternative to:
Encrypted note-taking that syncs across all your devices
Stars
56,816Last commit
2 hours agoLicense
Unknown
Cross-platform note-taking app with end-to-end encryption, Markdown support, web clipping, and sync via Dropbox, OneDrive, or Joplin Cloud.
Open Source Alternative to:
Open source payment orchestrator for global transactions
Stars
Stars growing over the last 30 days45,380Last commit
3 hours agoLicense
Apache-2.0
A unified payment infrastructure that connects multiple payment processors through a single API integration, enabling global payment processing
Open Source Alternative to:
Lightweight, fast, and open-source API client for developers
Stars
47,766Last commit
2 days agoLicense
MIT
A modern, user-friendly API client that simplifies API testing and development with a clean interface and powerful features.
Open Source Alternative to:
AI-powered research notebook with full privacy control
Stars
40,407Last commit
11 hours agoLicense
MIT
Combines AI summarization, podcast generation, and multi-format content ingestion for researchers and students who want to keep their data private.
Open Source Alternative to:
Free instant whiteboard with real-time collaboration
Stars
51,010Last commit
5 hours agoLicense
Unknown
Virtual whiteboard that works instantly on any device, no signup required, with real-time multiplayer collaboration built in.
Open Source Alternative to:
Privacy-focused browser with powerful customization
Stars
45,040Last commit
8 hours agoLicense
MPL-2.0
A Firefox-based browser offering enhanced privacy, split views, and extensive customization options for a personalized browsing experience.
Open Source Alternative to:
Sent – A unified API for sending messages across SMS, RCS, and apps like WhatsApp.
Sent
Docmost
Windshift