BigBlueButton
Supports real-time sharing of audio, video, slides (with whiteboard controls), chat, and the screen. Instructors can engage remote students...
Free
Email, chat & meetings
1,634 self-hosted solutions from public repositories worldwide. Categories curated by people, licenses and star counts, shown as they are.
SimpleLogin
Open source email alias solution to protect your email address. Comes with browser extensions and mobile apps.
Maddy Mail Server
All-in-one mail server that implements SMTP (both MTA and MX) and IMAP. Replaces Postfix, Dovecot, OpenDKIM, OpenSPF, OpenDMARC with single...
Mox
Complete e-mail solution with IMAP4, SMTP, SPF, DKIM, DMARC, MTA-STS, DANE and DNSSEC, reputation-based and content-based junk filtering, In...
WorkAdventure
Virtual office / virtual conference application presented as a 16-bit RPG video game.
Colanode
Collaboration suite with real-time messaging, rich text pages, file management, and dynamic databases - built for offline work (alternative...
Radicale
Simple calendar and contact server with extremely low administrative overhead.
MiroTalk P2P
Simple, secure, fast real-time video conferences up to 4k and 60fps, compatible with all browsers and platforms.
Synapse
Server for [Matrix](https://matrix.org/), an open standard for decentralized persistent communication.
Asterisk
Easy to use but advanced IP PBX system, VoIP gateway and conference server.
Modoboa
Mail hosting and management platform including a modern and simplified web user interface.
Ergo
Modern IRCv3 server written in Go, combining the features of an ircd, a services framework, and a bouncer.
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Advertising
Ad Platform
A display-ad broker with advertiser, partner and operator consoles
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Real estate
Rental Billing
Space rental, contracts and billing in one button — for small landlords
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Finance · Trading
AI Auto-Trading
Automated trading where AI reviews every strategy and every decision is on record
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