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Showing 1–60 of 530 (10490 total) · Search by description →
AI Chat & Voice Agents
Gaion
✓The future of AI companionship. Create and bond with your perfect artificial companion.
Team Chat & Messaging
LocalSend
An open-source cross-platform alternative to AirDrop.
Team Chat & Messaging
OnionShare
Securely and anonymously share files, host websites, and chat with friends
Email Infrastructure
Listmonk
High performance, self-hosted newsletter and mailing list manager with a modern dashboard.
Team Chat & Messaging
Beeper
Universal chat app powered by Matrix
Email Infrastructure
Mox
Complete e-mail solution with IMAP4, SMTP, SPF, DKIM, DMARC, MTA-STS, DANE and DNSSEC, reputation-based and content-based junk filtering…
Forums & Community
AsmBB
Fast, SQLite-powered forum engine written in ASM.
Email Clients
Mimestream
Native app email client for Gmail
AI Chat & Voice Agents
Onyx Community Edition
Chat UI that works with any LLM. It comes loaded with advanced features like agents, web search, RAG, MCP, deep research, Connectors to 40+…
Team Chat & Messaging
Signal
Privacy-first messenger with end-to-end encryption by default, no ads, no trackers, and no tracking of who you talk to or when.
Team Chat & Messaging
Quiet
Private, p2p alternative to Slack and Discord built on Tor & IPFS
Video & Voice
Muzzle
A simple mac app to silence embarrassing notifications while screensharing.
Video & Voice
Owncast
Decentralized single-user live video streaming and chat server for running your own live streams similar in style to the large mainstream…
Forums & Community
Beehiiv
Beehiiv is a platform for creating, distributing, and monetizing newsletters.
Forums & Community
Discourse
Advanced forum / community solution based on Ruby and JS.
AI Chat & Voice Agents
Jan
Offline AI chat tool
Team Chat & Messaging
NearDrop
An unofficial Google Nearby Share/Quick Share app for macOS.
Email Clients
Shortwave
Email client
Team Chat & Messaging
SimpleX Chat
Messenger for SimpleX protocol
Team Chat & Messaging
irssi
IRC chat client.
Video & Voice
WorkAdventure
Virtual office / virtual conference application presented as a 16-bit RPG video game.
AI Email & Productivity
Cloudflare Email Service
Turn any email inbox into a native interface for AI agents
Forums & Community
GlobaLeaks
Whistleblowing software enabling anyone to easily set up and maintain a secure reporting platform.
Team Chat & Messaging
One Time Secret
Share sensitive information securely with self-destructing links that are only viewable once.
AI Email & Productivity
AnonAddy
Email forwarding service for creating aliases.
Video & Voice
BigBlueButton
Supports real-time sharing of audio, video, slides (with whiteboard controls), chat, and the screen. Instructors can engage remote students…
Team Chat & Messaging
BlueBubbles
Server for forwarding iMessages
Team Chat & Messaging
Gotify
Notification server with Android and CLI clients (alternative to PushBullet).
Video & Voice
Krisp
An AI-powered noise cancelling app that mutes background noise during calls.
Customer Support & Live Chat
Libredesk
Modern customer support desk. Single binary app.
Email Infrastructure
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…
AI Chat & Voice Agents
OpenCat
Native AI chat client
Team Chat & Messaging
Texts.com
DM Manager
Customer Support & Live Chat
Chatwoot
Customer communication platform (alternative to Intercom and Zendesk).
Email Infrastructure
Keila
Reliable and easy-to-use newsletter tool (alternative to Mailchimp and Sendinblue).
Email Infrastructure
Mail-in-a-Box
Turns any Ubuntu server into a fully functional mail server with one command.
Email Infrastructure
Mailcow
Mail server suite based on Dovecot, Postfix and other open source software, that provides a modern Web UI for administration.
Team Chat & Messaging
Session
Onion routing based messenger
AI Email & Productivity
SimpleLogin
Open source email alias solution to protect your email address. Comes with browser extensions and mobile apps.
Team Chat & Messaging
Zulip
Zulip is a powerful, open source group chat application.
Email Infrastructure
docker-mailserver
Production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) running inside a container. Only…
Email Clients
Superhuman
Email client
Team Chat & Messaging
Centrifugo
Language-agnostic real-time messaging (Websocket or SockJS) server.
Team Chat & Messaging
Chitchatter
Peer-to-peer chat app that is serverless, decentralized, and ephemeral.
Team Chat & Messaging
Delta Chat
Secure and reliable decentralised instant messenger
Email Clients
Fastmail
Email client
Team Chat & Messaging
Ferdium
Messaging workspace that combines multiple web apps in one place.
Email Infrastructure
Forward Email
Privacy-focused encrypted email for everyone. All-in-one alternative to Gmail + Mailchimp + Sendgrid.
Video & Voice
Kamailio
Modular SIP server (registrar/proxy/router/etc).
Video & Voice
keet
Peer-to-peer video and text chat
AI Chat & Voice Agents
kimi
AI chat assistant from Moonshot
Team Chat & Messaging
Matrix
An open network for secure, decentralised communication! ![Freeware][Freeware Icon] ![Open-Source Software][OSS Icon]
Customer Support & Live Chat
Missive
Team inbox and chat tool
Email Clients
NeoMutt
Email client.
Team Chat & Messaging
Rocket.Chat
Communications platform that puts data protection first (alternative to Gitter.im and Slack).
Team Chat & Messaging
Telegram
Messaging app with a focus on speed and security.
Email Infrastructure
Twilio
Cloud platform providing APIs for voice, SMS, video, and other communications.
Team Chat & Messaging
Hyphanet
Anonymously share files, browse and publish _freesites_ (web sites accessible only through Hyphanet) and chat on forums.
AI Chat & Voice Agents
Open Health - Unlock Your Apple Health
Chat with your Apple Health data using any LLM
Email Clients
BAREMAIL ʕ·ᴥ·ʔ
Minimalist Gmail client for bad wifi connections