Open Source Projects Looking for Contributors

An open-source, self-hostable SEO suite and pay-as-you-go alternative to Semrush and Ahrefs for keyword research, rank tracking, backlinks, and site audits.

Headless, simple CMS with a PHP backend and a convenient Vue admin frontend.

A self-hosted chat application for teams and communities with video calls, voice calls, and screen sharing.

Zero-dependency browser video editor that AI agents can drive via JSON timeline, MCP, and REST.

Self-hosted, open-source headless CMS built specifically for Astro.js with a block-based page builder.

The open-source link attribution platform for short links, conversion tracking, and affiliate programs.

Self-hosted task management that combines personal todo lists with powerful project organization. Built for individuals and teams who value privacy and control.

No-code spreadsheet database built on Postgres — a fast, open-source Airtable alternative.

A self-hosted media server for watching, tracking, and managing movies and TV shows with P2P streaming support.

Menu-bar thermal monitor and workload governor for fanless Macs.

Self-hosted speed test with easy setup, supports PHP and Node.js backends, mobile-friendly, and highly configurable.

Free and open-source HTML5 network performance estimation tool using only built-in web APIs — no third-party frameworks required.

A simple, lightweight home media server for UNIX systems.

Open source CRM platform for managing contacts, leads, sales pipelines, and customer relationships.

A modern, open-source CRM built as a community-driven alternative to Salesforce.

A modern, open-source CRM by the Frappe team, built for sales teams to manage leads and deals efficiently.

A self-hostable link-in-bio page built with Astro, React, and Tailwind CSS.

Open-source self-hostable bookmark manager to organize, discover, and personalize your saved links.

Low-latency, open-source voice chat built for gaming — self-host your own server with no subscription required.

Browser extension that automates repetitive web tasks by visually connecting blocks — no code required.

Open-source platform for building and deploying reliable background jobs, scheduled tasks, and AI workflows in TypeScript.

Event-driven workflow orchestration platform with a YAML-based pipeline DSL, 500+ plugins, and a built-in UI editor.

Open-source email platform for sending transactional and marketing emails, self-hostable with a clean API.

Free open-source self-hosted bookmark manager with customizable nested tags, fast search, and local data storage.

Self-hosted, privacy-first location timeline platform that turns raw GPS data into a searchable history of stays, trips, and movement patterns.

Self-hosted location tracking and analysis with automatic visit detection, trip classification, Immich integration, and multi-user timeline support.

Open platform for governing execution authority at decision surfaces across agents, AI systems, and enterprise workflows.

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

Minimal self-hosted project management with kanban boards and issue tracking — no bloat, no subscriptions.

Openpanel is an open-source web and product analytics platform that combines the power of Mixpanel with the ease of Plausible and one of the best Google Analytics replacements.

Self-hosted read-it-later app that saves articles for offline reading with a clean, distraction-free view.

Self-hosted document management system with OCR, full-text search, and automatic tagging for your paper documents.

Continuous file synchronization program that syncs files directly between your devices — no cloud required.

Minimalist, federated blogging platform for writers who want a clean, distraction-free space to publish.

Network-wide DNS-based ad and tracker blocker with parental controls, DNS rewrites, and detailed query logging.

Markdown-based note-taking app with powerful live queries, templates, and a pluggable scripting system for power users.

Real-time collaborative markdown note editor you can self-host — write together with rich formatting and seamless sharing.

Free and open-source media server for movies, TV shows, music, and photos — a fully self-hosted alternative to Plex.

Open-source, self-hosted database backup and restore platform for PostgreSQL, MySQL, MongoDB, Redis, and more.

Open source automation tower defense RTS — build factories, mine resources, and defend your core against waves of enemies.

Self-hosted media tracker that syncs your Jellyfin, Plex, or Emby libraries, tracks watch history, ratings, and lists — your own private Letterboxd + Trakt.

Modern, lightweight self-hosted music server compatible with Subsonic/Airsonic clients — stream your music everywhere.

Fast, privacy-focused local-first personal finance app using zero-sum budgeting, with optional self-hosted sync.

Open-source design and prototyping tool for cross-domain teams — a self-hostable alternative to Figma.

AI-native design editor with real-time collaboration, component system, and Figma-compatible file format.

Self-hosted private journaling app with end-to-end encryption and a clean interface.

Self-hosted file sharing and management platform with file transfers, pastes, collections, and a REST API.

Free browser-based invoice generator with live PDF preview, no sign-up required, and support for 120+ currencies.

Lightweight, portable PDF editor for Windows with no subscription or telemetry.

Self-hosted Kanban and scrum project management tool with real-time collaboration, sprints, and anonymous shareable boards.

High performance, self-hosted, newsletter and mailing list manager with a modern dashboard. Single binary app.

The open source Zapier alternative. Build workflow automation without spending time and money.

📮 Self hosted bookmarking app

Self-hostable private blogging

The open-source CapCut alternative

Simple, open source team messaging platform

🚀 Strapi is the leading open-source headless CMS. It’s 100% JavaScript/TypeScript, fully customizable, and developer-first.

The communications platform that puts data protection first.

Umami is a modern, privacy-focused alternative to Google Analytics.

Simple, open source, lightweight and privacy-friendly web analytics alternative to Google Analytics.

Self Hosted Alternative To Google Analytics

Simple, yet powerful Web- & Product Analytics.

Self-hosted workout and fitness manager with nutrition tracking and mobile apps.

📨 The ultimate social media scheduling tool, with a bunch of AI 🤖

Self-hosted image sharing app that ships as a single static binary with multi-user support and shareable guest albums.

Free universal database tool and SQL client

A self-hosted knowledge base for note-taking with markdown support, Zettelkasten methodology, and Docker deployment.

Olares: An Open-Source Personal Cloud to Reclaim Your Data

OpenVPN is an open source VPN daemon

A lightweight, open-source game library manager that allows you to organize, access, and share your video games through a web interface.

Built for Families. Powered by AI. Track food, fitness, water, and health — together.

Self-hosted uptime monitoring tool with a polished UI, 90+ notification integrations, and built-in public status pages.

The world's most flexible commerce platform.

A robust, self-hosted time tracking application designed for teams and freelancers who need reliable time management without cloud dependencies. Built with Flask and optimized for Raspberry Pi deployment, TimeTracker provides persistent timers, comprehensive reporting, and a modern web interface.

Database diagrams editor that allows you to visualize and design your DB with a single query.

Open-source customer engagement. Automate transactional and marketing messages across email, SMS, mobile push, WhatsApp, Slack, and more 📨

Translate web pages, highlighted text, Netflix subtitles, private messages, speak the translated text, and save important translations to your personal dictionary to learn words even offline

Linkwarden is a self-hosted, open-source collaborative bookmark manager that lets you save, organize, and preserve web pages with features like archiving (screenshots, PDFs, reader view), tagging, collections, and annotations. It serves as an alternative to tools like Raindrop.io (cloud bookmarking), Wallabag (read-it-later), ArchiveBox (web archiving), and other self-hosted bookmark managers such as linkding, LinkAce, and Shiori, offering a balance between rich UI, collaboration, and long-term link preservation.

Lunalytics is an open-source, self-hosted monitoring tool built with Node.js and React that supports HTTP(S), TCP, ping, Docker, and more. It offers customizable dashboards, status pages, incident management, multi-user access control, and integrations with popular notification services, making it a modern, developer-friendly solution for monitoring uptime and system health.

Flowise is an open-source, visual, low-code/no-code tool designed to help users build AI agents and sophisticated LLM-powered workflows through a drag-and-drop interface. It features a Node.js backend and a React frontend, along with modular components for integrations and API documentation—making it accessible to both developers and non-technical users.

The most intuitive desktop API client. Organize and execute REST, GraphQL, WebSockets, Server Sent Events, and gRPC 🦬

The open-source alternative to Google Drive.

A self hosted dashboard and organizer for Excalidraw with live collaboration.

Databuddy is a privacy-first analytics platform with a focus on user experience, with it's foundation built on privacy, it ensures complete compliance with most major data privacy laws out of the box

Open source Loom alternative for beautiful, shareable screen recordings.

Open source screen recorder and editor with auto-zoom, webcam overlays, and cursor animations.

Windows screen recorder that captures screen, audio, cursor, mouse clicks, and keystrokes.

Powerful Linux and Windows screencast creator with multi-source audio, webcam, magnifier, and countdown.

A truly independent web browser built from scratch, with no Chromium, WebKit, or Gecko code.

Open Source Alternative to Vercel, Netlify and Heroku.

🦎 a tool to build and deploy software on many servers 🦎

AI-native, local-first markdown editor and LLM wiki with built-in integrations for Claude, Codex, and other agents.

Self-hosted recipe, pantry, and cooking tracker with a PWA and native Android app — no telemetry, no cloud lock-in.

Open-source authentication platform for Next.js and React, built as an alternative to Auth0 and Clerk.

Privacy-friendly, open-source web analytics platform that is a simpler alternative to Google Analytics.

Open-source collaborative wiki and documentation platform, an alternative to Confluence and Notion.

Fast, typo-tolerant open-source search engine and a simpler, cheaper alternative to Algolia.

Open-source authentication solution, an alternative to Auth0 and Firebase Auth that you can self-host.

Privacy-focused, command-line bookmark manager that stores links in a local encrypted SQLite database with full-text search.

Minimal, fast, self-hosted bookmark manager with tagging, full-text search, and a clean web UI designed for easy Docker deployment.

Self-hostable bookmark-everything app with AI-based automatic tagging, full-text search, and support for links, notes, and images.

Self-hosted identity-aware reverse proxy that securely exposes private services via encrypted tunnels without opening inbound ports.

🚀 HTTPie Desktop — cross-platform API testing client for humans. Painlessly test REST, GraphQL, and HTTP APIs.

Self-hostable social media scheduler for content creators and small teams with distributed job processing.

Open source read-it-later app with full-text search, highlighting, notes, newsletter support, and integrations with Logseq and Obsidian.

🔒 End-to-end encrypted cloud for photos, videos and 2FA secrets.

A simple app for tracking monthly spending and working towards financial goals.

A self-hosted tunneling tool — like ngrok, but on your own domain. Expose local dev servers through subdomains on your VPS.

EverShop is a modern, TypeScript-first eCommerce platform built with GraphQL and React. Designed for developers, it offers essential commerce features in a modular, fully customizable architecture—perfect for building tailored shopping experiences with confidence and speed.

draw.io is a JavaScript, client-side editor for general diagramming.

A PDF viewer that seamlessly integrates with any JavaScript project

An open source, self-hosted implementation of the Tailscale control server

Get up and running with Llama 3.3, DeepSeek-R1, Phi-4, Gemma 3, Mistral Small 3.1 and other large language models.

User-friendly AI Interface (Supports Ollama, OpenAI API, ...)

OpenCode is an open source agent that helps you write code in your terminal, IDE, or desktop.

Take Back Control of Your Productivity

A headless browser built from scratch in Zig, optimised for AI agents and automation with 9x less memory and 11x faster execution than Chrome.

Self-hosted office suite with real-time collaboration.

Open-source real-time collaborative text editor you can self-host.

Open-source spreadsheet-database hybrid with flexible relational data modeling.

High-perfomance, self-hosted and privacy-focused web analytics service.

AI-powered self-hosted photo app for browsing, organizing, and sharing your photo collection.

Beautiful self-hosted photo management tool with a stunning web interface.

Self-hosted live video streaming server with built-in chat and Fediverse integration.

Open-source form builder for creating beautiful, mobile-friendly forms and surveys.

Open-source survey and experience management platform for product and customer research.

Open Source Fitness Tracking App

Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)

Scalar is an open-source API platform:　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　🌐 Modern Rest API Client　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　📖 Beautiful API References　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　✨ 1st-Class OpenAPI/Swagger Support

Open source API development ecosystem - https://hoppscotch.io (open-source alternative to Postman, Insomnia)

Open-source uptime monitoring and status page platform with synthetic checks from 28 global regions and multi-channel alerting.

An open source movie and TV show tracker app for Android with IMDb integration.

Simple golang utility helping to discover large files and folders.

A free, source-available macOS app cleaner with privacy in mind.

Free, open-source macOS cleaner with zero telemetry. CleanMyMac alternative.

Deep clean and optimize your Mac with this all-in-one CLI toolkit.

A self-hosted, lightweight web media server for streaming your personal comics, manga, ebooks, and audiobooks.

A self-hosted, Instagram-style photo and video gallery that serves your local folders as a beautiful feed.

Modern, fully featured open source video and media CMS built with Django and React for self-hosted video sharing.

High performance self-hosted photo and video management solution with automatic backup, facial recognition, and AI-powered search.

Bitwarden infrastructure/backend (API, database, Docker, etc).

Free, open-source screen recorder for creating beautiful product demos — an alternative to Screen Studio.

Open source customer feedback platform to collect, organize, and prioritize feature requests from users.

Open Source Newsletter Tool and Mailchimp alternative for creating campaigns and sign-up forms.

A plug-and-play blogging and wiki system for Go backends with Markdown support and live preview.

A desktop GUI application for the Hugo static site generator, designed for content editors without command-line knowledge.

Turn your Android phone into a 4K webcam via USB or WiFi with an open-source desktop client and mobile app.

Cross-platform desktop app that removes EXIF and hidden metadata from 90+ file formats before sharing.

Open-source uptime and SSL monitoring service with status pages, multiple notification channels, and Prometheus integration.

A self-hosted personal knowledge base that turns markdown notes into an AI-augmented knowledge graph with semantic search and wiki synthesis.

Painless self-hosted all-in-one software development service with Git hosting, code review, CI/CD, and package registry.

Open-source, security-first password manager designed for teams. End-to-end encryption, granular access control, and self-hostable.

Open source screen recording sharing platform — a self-hostable Loom alternative.

Self-hostable open source video review and asset collaboration platform, a privacy-friendly alternative to Frame.io.

Open-source AI IDE that plans before it codes, using spec-driven development with requirements, design, and task steps.

Turn raw screenshots into polished, shareable visuals. Free, open-source, and completely offline with Tauri.

Open-source social media scheduling platform — a self-hosted alternative to Buffer, Hootsuite, and Later for agencies and creators.

Lightweight, self-hosted personal finance and bookkeeping app with a mobile-friendly UI — an open alternative to Mint and YNAB.

Open-source macOS launcher with Raycast-compatible extensions, voice workflows, and AI-native actions.

Terminal-based stock market visualizer that displays real-time stock graphs directly in your terminal.

Open-source financial data platform for analysts, quants, and AI agents — a free alternative to Bloomberg Terminal.

Free, open-source backup software that stores encrypted, incremental backups to cloud storage and remote servers.

Open-source desktop AI coworker with a living knowledge graph, built-in email, browser, meeting notes, and code mode.

Markdown-based presentation slides for developers, with code highlighting, Vue components, theming, and PDF/PPTX export.

The official CLI for the Marp Markdown presentation ecosystem — write slides in Markdown and convert to HTML, PDF, PPTX, or images.

Open source desktop Markdown presentation editor with live preview, themes, and PPTX export — a self-contained alternative to PowerPoint.

Self-hosted AI transcription and intelligent note-taking platform that turns audio recordings into organized, searchable notes with speaker identification.

Instant messaging platform with self-hosted backend in Go and clients for iOS, Android, web, and command line.

Decentralized private messenger using email infrastructure for secure, end-to-end encrypted communication.

AI-native open-source project management platform for Scrum and Kanban teams.

Open-source, privacy-first alternative to Google NotebookLM with multi-model AI support, podcast generation, and self-hosting.

An open-source terminal-native AI coding agent with cross-session memory, multiple agents, and support for any LLM provider.

Open-source GPS track manager with 3D topography visualization for outdoor activities.

Uptime monitoring system built to run natively within Cloudflare.

Distributed monitoring and status page platform with fault-tolerant architecture.

The CI/CD that grows with you. One binary, any database, any queue, runs anywhere.

Self-hosted weightlifting tracker — single Docker container, AGPL-3.0, no telemetry, no cloud sync.

A Markdown note-taking web application designed for simplicity with vaults, collaboration, and PWA support.

Open-source local-first Markdown workspace for macOS with wiki, AI editing, and encrypted sync.

A simple local-first note-taking app for your plain .md files with Telegram bot access.

Free and open source multi-track video editor built on MLT Framework and KDE technologies.

Self-hosted podcast server that uses AI to automatically remove ads from episodes before you hit play.

Open-source workspace to build, deploy, and orchestrate AI agents and agentic workflows.

A self-hosted podcast manager/downloader/archiver tool to download podcast episodes as soon as they become live with an integrated player.

Open-source AI chat and enterprise search platform with RAG that works with every LLM.

A minimalist, offline-first markdown note-taking app for macOS, Windows, and Linux.

Self-hostable project management for dev teams: issues, cycles, modules, pages, and analytics. Go + React alternative to Jira and Linear.

Privacy-first password manager with built-in email aliasing. Fully encrypted and self-hostable.

Unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden_rs.

Self-hosted URL shortener with analytics, QR codes, and link-in-bio pages. A privacy-first open source alternative to Bitly.

Self-hosted project and task management platform with Kanban boards, sprints, time tracking, and AI/MCP integrations for software teams.

Open-source drag-and-drop email editor with JSON templates, MJML rendering, and framework-agnostic embedding.

Universal open-source 2D editor for pixel art, painting, vector graphics, and animation.

Federated, self-hostable social network for readers — book shelves, reviews, and reading status, decentralized via ActivityPub.

Privacy-respecting mobile book tracker for iOS and Android, built with Flutter — your library lives on your device.

Self-hosted image manipulation platform with 45+ tools, local AI, and pipelines. A privacy-first open source alternative to Canva, TinyPNG, and remove.bg.

A universal habit and tracking dashboard tailored for Raspberry Pi and Docker with a modern React frontend.

Self-hosted, open-source customer feedback management — collect feature requests, vote, and close the loop with a public roadmap and changelog.

Free, open-source cross-platform TOTP authenticator with self-hostable sync backend, built with Flutter.

Lightweight open-source observability tool with pixel-perfect session replay, real-time error detection, and journey mapping for web and mobile apps.

A self-hostable, GUI-first AI coding agent with editable conversation trees, plugin-based tools, and multi-client sessions.

A self-hosted, cross-platform podcast management system with a modern Rust and Python stack.

A lightweight PHP-based URL shortener with MySQL or SQLite support and user history tracking.

A modern, free, and open-source URL shortener with custom domains, analytics, and a clean API.

The definitive self-hosted URL shortener with analytics, QR codes, custom domains, and a powerful API.

Open-source knowledge base combining note-taking, whiteboard, and project planning in one workspace.

Privacy-focused, open-source note-taking and to-do app with end-to-end encryption and multi-device sync.

Lightweight self-hosted app for managing personal file-based notes and checklists.

The best and simplest open-source tool for website change detection, page monitoring, and alerts. Self-hostable with Docker or use the SaaS plan.

Free and open-source iOS device manager for macOS. Browse backups, export messages, extract photos, manage apps - no subscriptions, no iCloud lock-in.

Self-hosted recipe manager for managing your digital recipe collection. Import, plan meals, build shopping lists, and collaborate with family.

Self-hosted, cross-platform reading server for manga, comics, and ebooks with responsive web readers and an OPDS feed.

Lightweight self-hosted server monitoring hub with historical data, Docker stats, and configurable alerts.

Self-hosted automation platform for building agents that monitor and act on your behalf — a hackable, open source alternative to IFTTT and Zapier.

The easiest way to run a self-hosted WireGuard VPN with a web-based admin UI, automatic client management, and one-liner deployment.

API-oriented, open source Airtable alternative with database, dashboard, automation, and a no-code app builder.

Free, open source digital painting and illustration application that is a popular alternative to Photoshop and Procreate.

Modern, open source time-tracking app for freelancers and teams with project, client, task, and reporting features.

Modern, open source Trello alternative with kanban boards, lists, cards, and collaborative project tracking.

Open source time-tracking application for freelancers, teams, and organisations, with timesheets, invoicing, and detailed reports.

Open source, local-first Slack and Notion alternative that puts you in control of your data with offline support and end-to-end encryption.

Lightweight, Google-searchable open source Slack and Discord alternative designed for online communities.

Dev-first open source alternative to Jira and Linear for issue tracking, sprint planning, and product development.

Free, open source vector graphics editor for illustrations, logos, icons, and technical drawings — a strong alternative to Adobe Illustrator.

Open source AI-powered omnichannel customer service platform that combines live chat, ticketing, and team collaboration as an alternative to Slack, Zendesk, Intercom, and HubSpot.

Open source help desk and issue management platform — a self-hostable alternative to Zendesk and Jira for support teams.

Free, self-hostable meeting scheduler built on Google Apps Script — a Cal.com and Calendly alternative for Gmail users.

Open source Calendly alternative that runs on Cloudflare’s free tier with Google Calendar and Outlook sync.

The fastest growing-team knowledge base — beautiful, realtime collaborative, feature packed, and markdown compatible Notion and Confluence alternative.

Open source identity provider and SSO solution that replaces Auth0 and Okta with a self-hostable, flexible authentication platform.

Local-first, end-to-end encrypted alternative to Notion that lets you build a private knowledge base, docs, and tasks with no central server.

End-to-end encrypted, open source notes app that is a privacy-focused alternative to Evernote, Notion, and Apple Notes.

All-in-one open source platform that combines project management, CRM, chat, HR, and wiki as an alternative to Linear, Jira, Slack, and Notion.

Developer-first open source Typeform alternative (formerly Blocks.md) with Markdown-defined forms and native Google Sheets integration.

Open source React-based Typeform alternative for building conversational multi-step forms, surveys, and quizzes.

Self-hosted personal finance manager for tracking expenses, budgets, and net worth via Docker.

Long-running self-hosted RSS/Atom feed reader and aggregator, originally created in 2005 and now maintained at github.com/tt-rss/tt-rss.

Modern self-hosted RSS reader with timed bookmarks, smart filters, in-article notes, and a built-in newsletter-to-RSS converter.

Self-hostable watchlist tracker for movies, TV shows, anime, and video games with a clean modern UI.

Self-hosted image sharing service with gallery support.

Secure and easy self-hosted file sharing platform.

High-performance S3-compatible object storage written in Swift, designed as a modern open alternative to MinIO.

Self-hosted knowledge base with extended Markdown editor, Kanban, OIDC/SSO, PWA and offline support.

Self-hostable PaaS for deploying full-stack apps and databases with zero downtime, auto HTTPS, and Docker support.

Privacy-first, cookie-less web analytics with speed monitoring and error tracking.

Self-hosted open-source web gallery for photos and videos with AI-powered image discovery, face detection, and tagging.

A fast directory-first photo gallery website, with rich UI, optimized for running on low resource servers (especially on Raspberry Pi).

Data analysis and visualization based on GPS tracked outdoor activities.

A self-hosted financial research platform with a Bloomberg-style interface for SEC filings, stock prices, and AI-powered analysis.

A self-hosted dividend portfolio tracker built with Flask that helps long-term investors track passive income, portfolio health, and progress toward financial independence.

Local-first, web-based two factor authenticator app.

Fast, secure, light-weight web-app to generate TOTP and HOTP tokens.

Simple OTP app for desktop and mobile.

A beautiful open source clipboard manager for macOS.

Offline-first, self-hostable note-taking app with rich text, tags, attachments, and cross-device sync via Docker.

Open-source wealth management software to track stocks, ETFs, cryptocurrencies, and your overall net worth.

A beautiful, private, local-first personal finance tracker for investments, net worth, spending, and simulations.

An open-source, self-hosted portfolio tracking, analytics, accounting, and management application that protects your privacy.

Battle-tested AI code review agent with deterministic pipelines + LLM, fine-tuned security rules, and line-level comments.

Self-hosted image and video hosting platform. Build your own Flickr or Imgur-style media sharing site.

Self-hostable alternative to Google Maps Timeline for tracking and visualizing your location history.

Self-hosted work management platform combining task tracking, workflow automation, and team collaboration in a single deployable app.

Container-friendly, leader-electing, fault-tolerant cron replacement with a built-in web dashboard, DAG orchestration, and durable state.

Open-source CRM with native AI agent support, 30 MCP tools, REST API, and self-hosting capabilities.

A lightweight, self-hosted CRM designed for personal life and relationship management.

Personal CRM. Remember everything about your friends, family and business relationships.

High-performance Rust-based S3-compatible object storage with deduplication, SQL queries, and federation.

High-performance S3-compatible object storage built in Rust, 2.3x faster than MinIO with Apache 2.0 licensing.

Distributed storage system with S3-compatible object storage, POSIX file system, and Iceberg table support for billions of files.

The tiniest OpenID Certified self-hosted authentication and authorization server, with OAuth, OIDC, LDAP, 2FA, and Traefik/Nginx/Caddy middleware support.

Local-first desktop project manager for small dev teams with Kanban workflow and zero cloud dependency.

Self-hosted personal nutrition tracker with PWA and Android app. No telemetry, no cloud sync, full data ownership.

Design, test and document APIs in plain Markdown with a git-native, offline-first approach.

CLI deployment tool from 37signals for zero-downtime Docker container deployments.

S3 gateway that translates S3 API requests to filesystem, Azure Blob, ScoutFS, or other S3 backends.

High-performance single-node S3-compatible object storage focused on scale-up performance, built in C++.

S3-compatible distributed object storage designed for small self-hosted geo-distributed deployments, built in Rust.

Run and test HTTP requests with plain text — a simple yet powerful command-line tool for API testing.

Straightforward realtime kanban boards for intuitive task tracking with dark mode and collaborative features.

100% local Windows meeting transcription tool with real-time captions, speaker diarization, and offline Whisper processing.

Self-hosted tracker for media consumption and fitness, with imports from Trakt, Goodreads, MyAnimeList, Plex, Jellyfin and more.