Open Source Projects using Yarn
A curated collection of the 122 best open source software using Yarn. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.
No-code database and app builder you can self-host
Stars
5,650Last commit
1 day agoLicense
MIT
Open-source platform for building databases, internal apps, and automated workflows without writing code. Available on cloud or self-hosted.
Open Source Alternative to:
Visual builder for AI agents and RAG pipelines
Stars
153,543Last commit
16 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:
Collaborative whiteboard with a hand-drawn aesthetic
Stars
130,175Last commit
6 days agoLicense
MIT
Virtual whiteboard for sketching diagrams, flowcharts, and wireframes with a distinctive hand-drawn look. Real-time collaboration built in.
Open Source Alternative to:
Self-serve data exploration and dashboard builder
Stars
74,372Last commit
12 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:
Docs, whiteboards, and databases in one privacy-first workspace
Stars
71,746Last commit
17 hours agoLicense
MIT
An open-source, local-first knowledge base that merges structured docs, infinite whiteboards, databases, and AI into a single workspace for teams and creators.
Open Source Alternative to:
Unified observability for metrics, logs, traces, and more
Stars
76,336Last commit
11 hours agoLicense
AGPL-3.0
Grafana unifies metrics, logs, traces, profiles, and business data into one OpenTelemetry-native platform with AI-assisted root cause analysis and adaptive cost controls.
Open Source Alternative to:
Chat with your documents using any LLM, fully private
Stars
65,034Last commit
13 hours agoLicense
MIT
A desktop and self-hostable AI app for chatting with documents, running local LLMs, and using AI agents without writing code or creating an account.
Open Source Alternative to:
Headless CMS with REST and GraphQL APIs out of the box
Stars
72,994Last commit
19 hours agoLicense
MIT
TypeScript headless CMS that generates REST and GraphQL APIs from your content model, with a no-code builder, plugin system, and full self-hosting support.
Open Source Alternative to:
Project management for teams and AI agents
Stars
56,997Last commit
1 day agoLicense
AGPL-3.0
Open source project management platform combining issues, wikis, and AI agents in one workspace. Available on cloud, self-hosted, and air-gapped deployments.
Open Source Alternative to:
Run open-source AI models privately on your own device
Stars
77,400Last commit
1 year agoLicense
MIT
GPT4All runs open-source language models locally on Windows, macOS, and Linux with no cloud dependency, keeping your data on your machine.
Open Source Alternative to:
A modern terminal built around AI coding agents
Stars
64,435Last commit
11 hours agoLicense
AGPL-3.0
Terminal built for running AI coding agents like Claude Code, Codex, and Gemini CLI, with shared context, interactive code review, and multi-session management.
Open Source Alternative to:
Build a custom CRM without the proprietary lock-in
Stars
55,297Last commit
11 hours agoLicense
AGPL-3.0
Self-hostable CRM built for technical teams who need a fully customizable, extensible platform without vendor lock-in or proprietary tooling.
Open Source Alternative to:
Self-host your own scheduling page, no vendor required
Stars
47,857Last commit
14 days agoLicense
MIT
Cal.diy is the community edition of Cal.com for personal self-hosting, with calendar sync, video conferencing, payment support, and a REST API.
Open Source Alternative to:
Publishing platform for blogs, newsletters, and paid memberships
Stars
54,952Last commit
12 hours agoLicense
MIT
Publish content, send email newsletters, and sell paid subscriptions from one platform. Used by independent journalists, creators, and businesses like YCombinator and Kickstarter.
Open Source Alternative to:
Encrypted note-taking that syncs across all your devices
Stars
56,045Last commit
19 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 UI design and prototyping for product teams
Stars
59,002Last commit
1 day agoLicense
MPL-2.0
Design, prototype, and hand off to developers in one platform. Supports design systems, tokens, flexible layouts, and AI workflows with real CSS/HTML output.
Open Source Alternative to:
Free instant whiteboard with real-time collaboration
Stars
49,900Last commit
11 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:
Self-hosted team messaging with voice, video, and AI
Stars
46,017Last commit
18 hours agoLicense
MIT
Open source communication platform combining messaging, voice, video, and AI for organizations that need full data control, air-gapped deployments, and zero-trust security.
Open Source Alternative to:
Decentralized social networking in your control
Stars
50,239Last commit
12 hours agoLicense
AGPL-3.0
A free, open-source social media platform that puts users in charge of their data and connections
Open Source Alternative to:
Run AI models locally or connect to cloud, privately
Stars
44,094Last commit
1 day agoLicense
Apache-2.0
Jan runs open-source AI models on your own hardware or connects to cloud providers like OpenAI, Anthropic, and Google, keeping your conversations off third-party servers.
Open Source Alternative to:
Unlock data insights with powerful, user-friendly analytics
Stars
48,874Last commit
14 hours agoLicense
Unknown
Open-source business intelligence platform for data exploration, visualization, and sharing. Empowers teams to make data-driven decisions effortlessly.
Open Source Alternative to:
Privacy-first knowledge base that connects your notes
Stars
44,553Last commit
1 day agoLicense
AGPL-3.0
Local-first, open-source knowledge management tool with bidirectional linking, outlines, flashcards, PDF annotations, and whiteboards for building a connected second brain.
Open Source Alternative to:
Build AI copilots for your product in hours, not months
Stars
36,945Last commit
16 hours agoLicense
MIT
Integrate production-ready AI copilots into any product quickly and easily with CopilotKit's open-source platform.
Open Source Alternative to:
Comprehensive business management, tailored for you
Stars
38,352Last commit
18 hours agoLicense
GPL-3.0
Open-source ERP solution offering modules for accounting, inventory, HR, CRM, and more. Customizable and scalable for businesses of all sizes.
Open Source Alternative to:
Empower your team to build custom internal tools rapidly
Stars
40,718Last commit
22 hours agoLicense
Apache-2.0
Low-code platform for creating powerful internal tools and dashboards with drag-and-drop ease, robust integrations, and customizable workflows.
Open Source Alternative to:
Cut and trim video without re-encoding or quality loss
Stars
43,101Last commit
1 day agoLicense
GPL-2.0
Desktop app for lossless video and audio editing. Cut, trim, merge, and remux files in seconds without re-encoding, using FFmpeg under the hood.
Open Source Alternative to:
Open-source e-commerce for modern developers
Stars
35,942Last commit
20 hours agoLicense
MIT
Flexible, customizable e-commerce platform with headless architecture, built-in features, and extensive plugin ecosystem for scalable online stores.
Open Source Alternative to:
AI second brain for research, automation, and personal agents
Stars
36,638Last commit
21 days agoLicense
AGPL-3.0
Self-hostable AI assistant that connects to your docs and the web, lets you build agents, schedule automations, and run research with verifiable citations.
Open Source Alternative to:
Fast, collaborative wiki for teams who need organized docs
Stars
40,283Last commit
13 hours agoLicense
BUSL-1.1
Team knowledge base with real-time collaboration, AI-powered search, Slack integration, and self-hosting support for internal docs and wikis.
Open Source Alternative to:
Zero-config VPN with WireGuard for secure networking
Stars
35,424Last commit
17 hours agoLicense
BSD-3-Clause
Deploy a modern WireGuard-based VPN with zero configuration. Connect devices securely across clouds, VPCs, and on-premises networks without firewall rules.
Open Source Alternative to:
AI-powered code completion for seamless development
Stars
33,832Last commit
2 months agoLicense
Apache-2.0
Self-hosted AI coding assistant that enhances productivity with context-aware suggestions and privacy-focused implementation.
Open Source Alternative to:
Secure storage and access control for secrets and sensitive data
Stars
36,153Last commit
19 hours agoLicense
Unknown
Manages tokens, passwords, certificates, and encryption keys through a UI, CLI, or HTTP API, with dynamic credentials and encryption-as-a-service built in.
Open Source Alternative to:
Open-source observability platform for cloud-native apps
Stars
31,909Last commit
22 hours agoLicense
MIT
Comprehensive monitoring and troubleshooting solution for microservices architectures, offering metrics, traces, and logs in a single pane.
Open Source Alternative to:
End-to-end open source software delivery platform
Stars
38,072Last commit
21 hours agoLicense
Apache-2.0
Streamline code delivery with an open-source CI/CD platform featuring Git integration, fast pipelines, and hosted development environments.
Open Source Alternative to:
Transform natural language into SQL queries with AI
Stars
28,010Last commit
1 day agoLicense
Apache-2.0
AI-powered SQL client that converts natural language to SQL queries. Supports MySQL, Redis, MongoDB with Text2SQL, BI dashboards, and secure database management.
Open Source Alternative to:
Secure, private photo storage and sharing solution
Stars
28,449Last commit
1 day agoLicense
AGPL-3.0
End-to-end encrypted cloud storage for photos and videos, offering privacy, security, and seamless cross-device syncing.
Open Source Alternative to:
Local-first envelope budgeting with full data ownership
Stars
28,293Last commit
18 hours agoLicense
MIT
Privacy-focused personal finance app using envelope budgeting, multi-device sync, optional end-to-end encryption, and bank sync for US, EU, and UK users.
Open Source Alternative to:
Connect, query, visualize, and share your data
Stars
28,763Last commit
4 days agoLicense
BSD-2-Clause
Redash is an open-source data visualization and analytics platform that helps teams make sense of their data through SQL queries and interactive dashboards.
Open Source Alternative to:
Build powerful web apps without complex coding
Stars
28,231Last commit
1 day agoLicense
Unknown
Low-code platform for creating custom business applications quickly. Design, automate, and deploy with ease.
Open Source Alternative to:
AI-powered DevSecOps for faster, secure software delivery
Stars
24,537Last commit
14 hours agoLicense
MIT
A comprehensive AI-powered DevSecOps platform that integrates development, security, and operations, streamlining software delivery and enhancing productivity.
Open Source Alternative to:
Create 2D and 3D games without coding, powered by AI assistance
Stars
25,833Last commit
16 hours agoLicense
Unknown
Free, open-source game engine with visual event system, AI tutor, and one-click publishing to Steam, iOS, Android, and web platforms.
Open Source Alternative to:
Infrastructure as code in your favorite language
Stars
25,597Last commit
11 hours agoLicense
Apache-2.0
Pulumi enables developers to define and manage cloud infrastructure using familiar programming languages instead of domain-specific languages.
Open Source Alternative to:
Sent – A unified API for sending messages across SMS, RCS, and apps like WhatsApp.
Sent
Stellar Hosted
InfluxDB