Open source. Open possibilities.

FaceAttend is a locally hosted classroom attendance system that uses video-based face recognition to identify enrolled students.

A tool for clipboard synchronization and content transfer (text and images) between various devices.

ClioForge is a self-hosted, open-source research IDE for history and humanities. It combines document import, annotation, evidence linking, writing, and bounded AI workflows, all subject to human review. Alpha software.

Linkwarden is a self-hosted, collaborative bookmark manager designed to collect, annotate, and preserve webpages to prevent link rot.

Project Phoenix is a self-hosted, GDPR-compliant attendance and room management platform for German all-day schools (OGS/Hort). Students check in/out via NFC wristbands on Raspberry Pi kiosks; supervisors track real-time presence and room occupancy. Includes parent portals, online enrollment, and staff time tracking.

HeyForm is an open-source form builder for creating conversational forms, surveys, quizzes, and polls with customizable themes, conditional logic, analytics, and integrations.

FreshRSS is a lightweight, self-hosted RSS feed aggregator that allows users to manage and read news feeds in a customizable, multi-user environment.

Chatwoot is an open-source, self-hosted customer support platform and omnichannel help desk, positioned as an alternative to Intercom, Zendesk and Salesforce Service Cloud. It unifies live chat, email and social channels into one inbox, with an AI agent, help center, automation and reporting.

Agent Relay is an MIT-licensed end-to-end encrypted inbox where AI agents deliver artifacts, drafts, and spend requests for human review. It offers a hosted service or self-hosting with PostgreSQL, S3 storage, passkey sign-in, agent API tokens, CLI/MCP tools, and an optional email approval relay.

Homarr is a modern, easy-to-use self-hosted dashboard featuring a drag-and-drop configuration system and extensive application integrations.

Cal.diy is the MIT-licensed community edition of Cal.com, a self-hosted scheduling platform with all enterprise features removed. It offers booking pages, calendar integrations and a setup wizard, and is intended for personal, non-production use.

NextChat is a fast, privacy-first AI chat client supporting OpenAI, Claude, DeepSeek, Gemini and other models. It offers one-click Vercel deployment, desktop apps, Markdown rendering, plugins, MCP support, and Docker-based self-hosting.

Official open-source Android client for the Telegram messaging app, with build instructions, API/MTProto documentation links, and localization guidance for developers creating their own Telegram-based applications.

Mattermost is an open core, self-hosted collaboration platform offering team chat, workflow automation, voice calling, screen sharing and AI integration. Written in Go and React, it runs as a single Linux binary backed by PostgreSQL, with monthly MIT-licensed releases and native mobile and desktop clients.

Papermark is an open-source DocSend alternative for secure document sharing and data rooms, with built-in analytics, custom domains and branding. It is self-hostable and built with Next.js, TypeScript, Prisma and PostgreSQL.

Zikra is a self-hosted MCP memory server for AI coding agents and teams. It provides a shared, project-scoped memory layer across multiple agents, with role-based access, hybrid semantic and keyword search, structured memory types, and optional PostgreSQL storage.

Outline is a fast, real‑time collaborative knowledge base for teams. Built with React and Node.js, it supports markdown, offers hosted and self‑hosted deployments via Docker, and includes extensive documentation, translation, and contribution guidelines.

MemPalace is a local-first AI memory system that stores conversation history verbatim and retrieves it via semantic search, with pluggable backends, an MCP server, knowledge graph, and CLI hooks for coding agents.

MindLeaps Tracker is a Ruby-based application designed to monitor students and track their progress within MindLeaps programs.

Trilium Notes is a free, open-source, cross-platform hierarchical note-taking application designed for building large personal knowledge bases.