Self-hosted
Databag is an open-source, self-hosted messaging service for the decentralized web, featuring direct communication, federation, end-to-end encryption, audio and video calls, and more. It relies on a STUN/TURN relay server for NAT traversal, and testing has been done with coturn and pion. Users wanting to enable audio and video
messages
Berty is an open, secure, offline-first, peer-to-peer messaging app that offers encrypted and offline communication without a central server. It provides end-to-end encryption, ensuring that even developers, corporations, or governments cannot access user data. Berty's distributed network and P2P direct messaging prevent interception by ISPs, hackers, or governments.
messaging
Databag is a self-hosted messaging service for the decentralized web. Key features include decentralized and federated communication, public-private key-based identity, end-to-end encryption, audio and video calls, topic-based threads, lightweight and low latency server, unlimited accounts per node, and mobile alerts for new contacts, messages, and calls. Databag is a feature-rich
servers
A VoIP (Voice over Internet Protocol) server is a computer system that enables voice communications over the internet. It converts analog audio signals into digital data packets and transmits them over the internet. SIP (Session Initiation Protocol) is a signaling protocol used for initiating, maintaining, and terminating real-time sessions that
communication
Zeus is a robust, powerful, and highly efficient Internet Communication Engine that can handle millions of concurrent connections across multiple platforms. Developed using native socket API, Zeus is designed to provide a seamless and uninterrupted communication experience to its users, ensuring high performance and reliability across all devices. With its
voip
SentryPeer is an innovative and efficient fraud detection solution that helps users safeguard their phone calls against malicious activities. By tracking and recording the IP address and number of bad actors attempting to make phone calls, SentryPeer creates a comprehensive database of fraudulent activities. With this information, users can generate
communication
EVO PTT is a comprehensive walkie talkie solution designed specifically for businesses, providing safe and reliable communication between users and supervisors. With the EVO PTT Android App, users can easily communicate with one another, ensuring that important messages are conveyed efficiently and effectively. In addition to the app, the EVO
Open-source
Gopher Game Server is a powerful platform that offers a wide range of tools to help developers build online multiplayer games and real-time applications with ease. With its flexible and diverse set of tools, developers can customize their games and applications to meet the specific needs of their projects. Features
communication
PyPhone is a Python-based GUI VoIP calling app that enables free internet calling. It is fully open-sourced and uses ngrok for port forwarding, making it possible to call from anywhere in the world. With some minor changes, it can also be used as an off-grid calling service within a LAN.
macos
It is a 100% free and open-source desktop email client. In other words, you can use it for Enriched contact profiles, Unified inbox, support unlimited email accounts, Unlimited customizable signatures, Multi-language spell check, Enhanced search capabilities, and more. You can also easily compatible Nylas with Gmail, Yahoo, and more. It
macos
DejaLu is an open-source fast and simple Email Client for Mac. Dejalu is software with amazing features. DejaLu can easily control your email notifications, it has a beautiful sidebar panel with folders to easily organize and filtered folder emails. You can customize your emails and add signatures to all your
macos
Mailspring is a new version of Nylas Mail maintained by one of the original authors. It's faster, leaner, and shipping today! It replaces the JavaScript sync code in Nylas Mail with a new C++ sync engine based on Mailcore2. It uses roughly half the RAM and CPU of
macos
Correo is one of these useful app, as it allows you quick access to your Gmail for Windows and macOS. It is designed by Amit Merchant, a software developer from India, who released it under MIT open-source license. With Correo you can access your Gmail in one click, keep the
macos
Beagle IM by Tigase, Inc. is a lightweight and powerful XMPP client for macOS. It provides an easy way to start using XMPP protocol (formelly known as Jabber) if you've never used it before. Veterans of the protocol will find many features with which they are familiar and
CMS
Build your own self-hosted and private Reddit clone for your community, team, school, company, and customers with these 10 open-source alternatives