All Open Source Projects

79 verified projects. Filter by license, language, and hosting.

Nextcloud✓ Verified★ 28K
Self-hosted productivity platform. File sync, calendar, contacts, office suite, and more.
File StorageAGPL-3.0Self-Hosted
Alt: Dropbox, Google DrivePHP
n8n✓ Verified★ 51K
Workflow automation tool. Connect anything to everything with a visual node editor.
AutomationFair-codeSelf-Hosted
Alt: Zapier, MakeTypeScript
Plausible✓ Verified★ 21K
Privacy-friendly web analytics. No cookies, GDPR compliant, lightweight script.
AnalyticsAGPL-3.0Self-Hosted
Alt: Google AnalyticsElixir
Cal.com✓ Verified★ 33K
Open source scheduling infrastructure. Calendly alternative with full API and self-hosting.
ProductivityAGPL-3.0Self-Hosted
Alt: CalendlyTypeScript
Bitwarden✓ Verified★ 16K
Password manager with zero-knowledge encryption. Free for personal use. Self-hostable.
Security & AuthGPL-3.0Self-Hosted
Alt: 1Password, LastPassC#
Mattermost✓ Verified★ 31K
Secure team collaboration platform. Channels, threads, integrations, and playbooks.
CommunicationMIT + EESelf-Hosted
Alt: Slack, TeamsGo
Gitea✓ Verified★ 46K
Lightweight self-hosted Git service. Painless to set up, fast, and easy to use.
Developer ToolsMITSelf-Hosted
Alt: GitHub, GitLabGo
Appwrite✓ Verified★ 46K
Open source backend-as-a-service. Auth, databases, storage, functions, and messaging.
Developer ToolsBSD-3-ClauseSelf-Hosted
Alt: Firebase, SupabaseTypeScript
Supabase✓ Verified★ 75K
Open source Firebase alternative. Postgres database, auth, realtime, storage, and edge functions.
Developer ToolsApache-2.0Self-Hosted
Alt: FirebaseTypeScript
Immich✓ Verified★ 55K
Self-hosted photo and video backup solution. High-performance Google Photos alternative.
File StorageAGPL-3.0Self-Hosted
Alt: Google PhotosTypeScript
Ghost✓ Verified★ 48K
Professional publishing platform. Memberships, newsletters, and content monetization built-in.
CMS & WebsitesMITSelf-Hosted
Alt: WordPress, Substack, MediumJavaScript
Keycloak✓ Verified★ 24K
Identity and access management. SSO, social login, user federation, and fine-grained authorization.
Security & AuthApache-2.0Self-Hosted
Alt: Auth0, OktaJava
Grafana✓ Verified★ 66K
Observability platform. Beautiful dashboards for metrics, logs, and traces from any data source.
MonitoringAGPL-3.0Self-Hosted
Alt: Datadog, New RelicGo
NocoDB✓ Verified★ 50K
Open source Airtable alternative. Turn any database into a smart spreadsheet interface.
ProductivityAGPL-3.0Self-Hosted
Alt: AirtableTypeScript
Jitsi Meet✓ Verified★ 23K
Secure video conferencing. No account needed, end-to-end encrypted, self-hostable.
CommunicationApache-2.0Self-Hosted
Alt: Zoom, Google MeetJava
Paperless-ngx✓ Verified★ 24K
Document management system. Scan, index, and archive all your paper documents digitally.
ProductivityGPL-3.0Self-Hosted
Alt: Evernote, DocuWarePython
Jellyfin✓ Verified★ 36K
Free media system. Stream your movies, TV shows, music, and photos to any device.
MediaGPL-2.0Self-Hosted
Alt: Plex, EmbyC#
Outline✓ Verified★ 29K
Team knowledge base and wiki. Beautiful docs with real-time collaboration.
ProductivityBSL-1.1Self-Hosted
Alt: Notion, ConfluenceTypeScript
Uptime Kuma✓ Verified★ 62K
Self-hosted monitoring tool. Track uptime for HTTP, TCP, DNS, and more with a beautiful UI.
MonitoringMITSelf-Hosted
Alt: UptimeRobot, PingdomJavaScript
Portainer✓ Verified★ 31K
Container management platform. Deploy, manage, and troubleshoot Docker & Kubernetes.
DevOps & CI/CDZlibSelf-Hosted
Alt: Docker Desktop, RancherGo
Chatwoot✓ Verified★ 22K
Open source customer engagement platform. Live chat, email, social, and WhatsApp in one inbox.
CRM & BusinessMITSelf-Hosted
Alt: Intercom, ZendeskRuby
Excalidraw✓ Verified★ 89K
Virtual whiteboard for sketching hand-drawn like diagrams. Real-time collaboration built-in.
Design & UIMIT
Alt: Miro, LucidchartTypeScript
Directus✓ Verified★ 28K
Instant REST & GraphQL API for any SQL database. Beautiful no-code data studio.
CMS & WebsitesBSL-1.1Self-Hosted
Alt: Contentful, StrapiTypeScript
Twenty✓ Verified★ 24K
Modern open source CRM. Beautiful interface, extensible, and community-driven.
CRM & BusinessAGPL-3.0Self-Hosted
Alt: Salesforce, HubSpotTypeScript
Penpot✓ Verified★ 35K
Open source design and prototyping platform. Figma alternative with SVG-native workflows.
Design & UIMPL-2.0Self-Hosted
Alt: Figma, SketchClojure
Homer✓ Verified★ 10K
Dead simple static homepage for your server. Clean dashboard to organize your services.
Self-HostedApache-2.0Self-Hosted
Alt: Heimdall, HomarrVue
Listmonk✓ Verified★ 16K
Self-hosted newsletter and mailing list manager. High-performance with a clean interface.
CommunicationAGPL-3.0Self-Hosted
Alt: Mailchimp, ConvertKitGo
DocuSeal✓ Verified★ 8K
Open source document signing. Create, fill, and sign digital documents with ease.
ProductivityAGPL-3.0Self-Hosted
Alt: DocuSign, HelloSignRuby
Maybe✓ Verified★ 36K
Open source personal finance and wealth management. Track net worth, investments, and spending.
ProductivityAGPL-3.0Self-Hosted
Alt: Mint, YNAB, MonarchRuby
HedgeDoc✓ Verified★ 5K
Real-time collaborative markdown editor. Share notes and documents with your team instantly.
ProductivityAGPL-3.0Self-Hosted
Alt: Google Docs, HackMDTypeScript
Woodpecker CI✓ Verified★ 4K
Simple yet powerful CI/CD engine. Container-native pipelines with multi-platform support.
DevOps & CI/CDApache-2.0Self-Hosted
Alt: GitHub Actions, JenkinsGo
Medusa✓ Verified★ 27K
Open source e-commerce platform. Composable commerce engine for custom digital storefronts.
E-commerceMITSelf-Hosted
Alt: Shopify, WooCommerceTypeScript
Logseq✓ Verified★ 34K
Privacy-first knowledge management. Outliner with bi-directional links and graph view.
ProductivityAGPL-3.0
Alt: Notion, Roam Research, ObsidianClojure
Focalboard✓ Verified★ 22K
Open source project management. Kanban boards, tables, and calendars for teams.
Project MgmtMIT/AGPLSelf-Hosted
Alt: Trello, Asana, NotionGo
Moodle✓ Verified★ 6K
Learning management system. The world's most popular open source LMS for education.
EducationGPL-3.0Self-Hosted
Alt: Canvas, Blackboard, Google ClassroomPHP
Mastodon✓ Verified★ 47K
Decentralized social network. Federated microblogging with no ads, no algorithms, no data mining.
Social MediaAGPL-3.0Self-Hosted
Alt: Twitter/X, ThreadsRuby
Godot Engine✓ Verified★ 93K
Free and open source game engine. Create 2D and 3D games with a feature-rich editor.
GamingMIT
Alt: Unity, Unreal EngineC++
Coolify✓ Verified★ 36K
Self-hostable Heroku/Vercel alternative. Deploy apps, databases, and services with ease.
DevOps & CI/CDApache-2.0Self-Hosted
Alt: Heroku, Vercel, NetlifyPHP
Rocket.Chat✓ Verified★ 41K
Open source team communication platform. Messages, video calls, file sharing, and omnichannel.
CommunicationMITSelf-Hosted
Alt: Slack, Teams, DiscordTypeScript
Element✓ Verified★ 11K
Secure decentralized messenger built on Matrix. End-to-end encrypted group chat and calls.
CommunicationApache-2.0Self-Hosted
Alt: Slack, Discord, TeamsTypeScript
TensorFlow✓ Verified★ 188K
End-to-end open source machine learning platform. Build and deploy ML models at scale.
AI & Machine LearningApache-2.0
Alt: PyTorch, JAXC++ / Python
PyTorch✓ Verified★ 86K
Open source machine learning framework. Dynamic computation graphs and Pythonic deep learning.
AI & Machine LearningBSD-3-Clause
Alt: TensorFlow, JAXC++ / Python
Scikit-learn✓ Verified★ 61K
Machine learning in Python. Simple, efficient tools for predictive data analysis.
AI & Machine LearningBSD-3-Clause
Alt: MATLAB ML ToolboxPython
Keras✓ Verified★ 62K
Deep learning API. Simple, flexible, and powerful neural network library for Python.
AI & Machine LearningApache-2.0
Alt: PyTorch LightningPython
Hugging Face Transformers✓ Verified★ 140K
State-of-the-art NLP and ML models. Thousands of pretrained models for text, vision, and audio.
AI & Machine LearningApache-2.0
Alt: OpenAI API, Google Vertex AIPython
LangChain✓ Verified★ 98K
Framework for building LLM-powered applications. Chains, agents, and retrieval-augmented generation.
AI & Machine LearningMIT
Alt: LlamaIndex, Semantic KernelPython
OpenCV✓ Verified★ 80K
Open source computer vision and image processing library. Real-time vision for any platform.
AI & Machine LearningApache-2.0
Alt: MATLAB Image ProcessingC++
XGBoost✓ Verified★ 26K
Scalable gradient boosting library. Fast, accurate, and battle-tested for tabular data.
AI & Machine LearningApache-2.0
Alt: LightGBM, CatBoostC++
LightGBM✓ Verified★ 17K
Fast gradient boosting framework. Lightweight, distributed, and high-performance tree-based learning.
AI & Machine LearningMIT
Alt: XGBoost, CatBoostC++
ONNX✓ Verified★ 18K
Open neural network exchange format. Interoperable AI models across frameworks and hardware.
AI & Machine LearningApache-2.0
Alt: TensorFlow SavedModel, TorchScriptC++ / Python
Wireshark✓ Verified★ 7K
Network protocol analyzer. Capture and inspect network traffic in real time.
NetworkingGPL-2.0
Alt: tcpdump, FiddlerC
Nmap✓ Verified★ 10K
Network discovery and security auditing tool. Port scanning, OS detection, and vulnerability discovery.
NetworkingNPSL
Alt: Masscan, Angry IP ScannerC / Lua
Metasploit Framework✓ Verified★ 34K
Penetration testing framework. World's most used pen testing tool for security professionals.
Security & AuthBSD-3-Clause
Alt: Burp Suite, Cobalt StrikeRuby
OpenVPN✓ Verified★ 11K
Open source VPN solution. Secure point-to-point and site-to-site connections.
NetworkingGPL-2.0Self-Hosted
Alt: NordVPN, ExpressVPNC
WireGuard✓ Verified★ 30K
Fast, modern VPN tunnel. Minimal codebase, state-of-the-art cryptography, high performance.
NetworkingGPL-2.0
Alt: OpenVPN, IPsecC
Snort✓ Verified★ 5K
Network intrusion detection and prevention system. Real-time traffic analysis and packet logging.
NetworkingGPL-2.0
Alt: Suricata, ZeekC
Suricata✓ Verified★ 5K
High-performance network IDS, IPS, and security monitoring engine. Multi-threaded threat detection.
NetworkingGPL-2.0
Alt: Snort, ZeekC / Rust
OWASP ZAP✓ Verified★ 13K
Web application security scanner. Find vulnerabilities in your web apps during development and testing.
Security & AuthApache-2.0
Alt: Burp Suite, AcunetixJava
Fail2Ban✓ Verified★ 12K
Intrusion prevention software. Ban IPs that show malicious signs based on log file analysis.
Security & AuthGPL-2.0Self-Hosted
Alt: CrowdSec, DenyHostsPython
HashiCorp Vault✓ Verified★ 31K
Secrets management and data protection. Secure, store, and control access to tokens, passwords, and keys.
Security & AuthBSL-1.1Self-Hosted
Alt: AWS Secrets Manager, CyberArkGo
GIMP✓ Verified★ 1K
Free image editor. Advanced photo retouching, image composition, and graphic design.
Creative ToolsGPL-3.0
Alt: Adobe PhotoshopC
Inkscape✓ Verified★ 2K
Vector graphics editor. Professional SVG editing and illustration tool.
Creative ToolsGPL-2.0
Alt: Adobe Illustrator, CorelDRAWC++
Blender✓ Verified★ 14K
3D creation suite. Modeling, animation, rendering, compositing, and video editing.
Creative ToolsGPL-2.0
Alt: Maya, 3ds Max, Cinema 4DC / C++ / Python
Krita✓ Verified★ 8K
Digital painting application. Professional-grade brushes and tools for concept art and illustration.
Creative ToolsGPL-3.0
Alt: Procreate, Corel PainterC++
WordPress✓ Verified★ 19K
The world's most popular CMS. Power 40%+ of all websites with themes, plugins, and blocks.
CMS & WebsitesGPL-2.0Self-Hosted
Alt: Wix, SquarespacePHP
Strapi✓ Verified★ 65K
Open source headless CMS. Build powerful APIs in minutes with a customizable admin panel.
CMS & WebsitesMITSelf-Hosted
Alt: Contentful, SanityTypeScript
OBS Studio✓ Verified★ 62K
Free video recording and live streaming software. Powerful, real-time video/audio capturing.
Creative ToolsGPL-2.0
Alt: Streamlabs, XSplitC / C++
Audacity✓ Verified★ 13K
Free audio editor and recorder. Multi-track editing, effects, and audio analysis.
Creative ToolsGPL-3.0
Alt: Adobe Audition, GarageBandC++
JAX✓ Verified★ 31K
High-performance numerical computing. Composable transformations for autograd, JIT, and vectorization.
AI & Machine LearningApache-2.0
Alt: PyTorch, TensorFlowPython / C++
spaCy✓ Verified★ 30K
Industrial-strength NLP library. Fast, accurate, and production-ready text processing.
AI & Machine LearningMIT
Alt: NLTK, StanzaPython / Cython
NLTK✓ Verified★ 14K
Natural Language Toolkit. Comprehensive platform for building NLP programs in Python.
AI & Machine LearningApache-2.0
Alt: spaCy, TextBlobPython
Sentence Transformers✓ Verified★ 16K
Multilingual sentence, paragraph, and image embeddings. Fast semantic search and similarity.
AI & Machine LearningApache-2.0
Alt: OpenAI Embeddings APIPython
LlamaIndex✓ Verified★ 38K
Data framework for LLM applications. Connect custom data sources to large language models.
AI & Machine LearningMIT
Alt: LangChain, HaystackPython
Haystack✓ Verified★ 18K
NLP framework for building search, question answering, and conversational AI pipelines.
AI & Machine LearningApache-2.0
Alt: LangChain, LlamaIndexPython
Detectron2✓ Verified★ 30K
Object detection and segmentation framework. Next-generation platform by Meta AI Research.
AI & Machine LearningApache-2.0
Alt: YOLO, MMDetectionPython
MLflow✓ Verified★ 19K
ML lifecycle platform. Experiment tracking, model registry, deployment, and reproducibility.
AI & Machine LearningApache-2.0Self-Hosted
Alt: Weights & Biases, NeptunePython
Kubeflow✓ Verified★ 14K
Machine learning toolkit for Kubernetes. End-to-end ML workflows on cloud-native infrastructure.
AI & Machine LearningApache-2.0Self-Hosted
Alt: SageMaker, Vertex AIGo / Python
DVC✓ Verified★ 14K
Data Version Control. Git for data and ML models. Track experiments and build pipelines.
AI & Machine LearningApache-2.0
Alt: Git LFS, PachydermPython
Ollama✓ Verified★ 110K
Run large language models locally. Simple CLI to download, run, and manage LLMs on your machine.
AI & Machine LearningMITSelf-Hosted
Alt: OpenAI API, Claude APIGo