Tech Stacks
Open Source
Open Source projects curated for the directory.
Open Source
Use the same directory search, ordering, and pagination controls inside this collection.
403 of 403 tools
Wekan
MIT
Open-source Kanban board solution offering visual task management, self-hosting capabilities, and robust security features for teams and individuals.
Worklenz
AGPL-3.0
Worklenz is a comprehensive project management platform that helps agencies organize tasks, track resources, and boost productivity.
Cinny
AGPL-3.0
Cinny offers a simple, elegant, and secure interface for Matrix-based conversations, protected by end-to-end encryption.
CryptPad
AGPL-3.0
Open-source collaboration suite offering encrypted document editing, file sharing, and team workspaces with complete privacy protection.
dDocs
AGPL-3.0
Write, organize, and collaborate in real-time with complete privacy and security. This app is an open-source, online/offline compatible, and AI-free alternative to Google Docs.
Docs
MIT
Transform document collaboration with real-time editing, version control, and secure sharing features that enhance team productivity and communication.
Element
AGPL-3.0
Open-source platform for encrypted communication, file sharing, and collaboration based on the Matrix protocol.
Excalidraw
MIT
Virtual whiteboard for sketching diagrams, flowcharts, and wireframes with a distinctive hand-drawn look. Real-time collaboration built in.
Fluxer
AGPL-3.0
Free, open-source instant messaging and VoIP platform with full Markdown support, voice/video calls, moderation tools, and self-hosting options for communities.
Jitsi
Apache-2.0
Host encrypted video conferences directly in your browser, deploy on your own servers, or integrate into applications - all with this powerful open source platform.
Mattermost
Unknown
Mattermost provides a flexible, open-source platform for secure team collaboration, designed for organizations with strict security and privacy requirements.
Mezon
Unknown
Build your own community space for gaming, chatting, and hanging out with friends worldwide. Customize your environment for the perfect social experience.
Nextcloud
AGPL-3.0
Nextcloud offers on-premises file sync, sharing and collaboration platform with advanced security and privacy features.
Stoat
Unknown
Self-hostable group chat with servers, channels, voice, and moderation tools. No ads, no data mining, built under EU privacy law.
Tldraw
Unknown
Virtual whiteboard that works instantly on any device, no signup required, with real-time multiplayer collaboration built in.
Twake Chat
AGPL-3.0
Free Matrix-based messenger with end-to-end encryption, multi-platform bridges, and on-premise deployment. Connect across 30+ networks securely.
UnInbox
Unknown
Streamline team communication with shared inboxes, unlimited email addresses, and customizable workflows. Perfect for modern businesses seeking organized email management.
Wire
GPL-3.0
A comprehensive collaboration platform offering end-to-end encrypted messaging, file sharing, and video calls with enterprise-grade security and compliance features.
Workadventure
Unknown
Create customizable virtual workspaces for remote teams to interact naturally, host events, and collaborate through spontaneous conversations and scheduled meetings.
Zulip
Apache-2.0
Zulip is an open-source team chat app that uses threaded conversations to keep communication organized and efficient for teams of all sizes.
Chobble Tickets
Unknown
Event ticketing platform with flat £50/year fee, no commission or booking charges. Open source, encrypted, self-hostable with unlimited events and tickets.
Easy!Appointments
GPL-3.0
Self-hosted appointment scheduling solution with Google Calendar sync, customizable workflows, and no monthly fees. Perfect for healthcare, salons, and service businesses.
Hi.Events
Unknown
Hi.Events is a comprehensive platform for event management and online ticket sales, offering features like QR code check-in, custom ticket types, and embeddable widgets.
Rallly
AGPL-3.0
A user-friendly, open-source tool for coordinating events and meetings without the hassle of back-and-forth emails or messages.























