An encrypted messaging app focused on privacy, supporting texts, calls, photos, videos, files, and group chats, with no ads or trackers.
- Instant Messenger
- Free • Open Source
- Mac
- Windows
- Linux
- Android
- iPhone
- iPad
- Flathub
- Ubuntu
- Debian
+4Experience instant messaging with remarkable speed and robust security. Join massive group chats or channels. Enjoy free and advanced features.
- Instant Messenger
- Freemium • Proprietary
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- Android Tablet
- HUAWEI AppGallery
- iPad
- Apple Watch
- Android Auto
- Linux Mobile
- Android Wear
- PortableApps.com
- FreeBSD
- Apple Car Play
+17A secure collaboration app with end-to-end encryption and interoperability across web, desktop, and mobile. Includes chat, voice, and video calls.
- Instant Messenger
- Free Personal • Open Source
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- Android Tablet
- iPad
- Self-Hosted
- Matrix.org
- Flathub
- F-Droid
- Cloudron
+1Federated and open-source social network with no ads, 500-character limit, custom emojis, and content warnings, emphasizing privacy and personal interaction.
- Social Network
- Free • Open Source
- Online
- Android
- iPhone
- iPad
- Self-Hosted
- F-Droid
- Cloudron
- Android Tablet
+6Facilitates device communication, enabling notifications, SMS replies, file sharing, and remote control across multiple operating systems.
- Mobile Remote Control Tool
- Free • Open Source
- Mac
- Windows
- Linux
- Android
- iPhone
- Android Tablet
- iPad
- KDE Plasma
- F-Droid
- Sailfish OS
- Plasma Mobile
- Chocolatey
+4A versatile platform for text and voice communication, featuring topic-specific channels, customizable moderation, and smooth low latency interactions.
- Instant Messenger
- Freemium • Proprietary
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- Android Tablet
- iPad
- Snapcraft
- Epic Games Store
- Flathub
- Electron
- Playstation
- Xbox
+7Matrix defines a set of open APIs for decentralised communication, suitable for securely publishing, persisting and subscribing to data over a global open federation of servers with no single point of control.
- Instant Messenger
- Free • Open Source
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- Android Tablet
- iPad
- Self-Hosted
- WebRTC
- Python
- JavaScript
- Go (Programming Language)
- Cloudron
- Java
- Perl
Pidgin is a chat program which lets you log into accounts on multiple chat networks simultaneously. This means that you can be chatting with friends on XMPP and sitting in an IRC channel at the same time.
- Instant Messenger
- Free • Open Source
- Mac
- Windows
- Linux
- BSD
- Flathub
- PortableApps.com
+4Pixelfed is an image sharing platform with focus on Privacy, Safety and Security, an ethical alternative to centralized platforms like Instagram.
- Social Network
- Free • Open Source
- Online
- Android
- iPhone
- iPad
- Self-Hosted
- Cloudron
- F-Droid
+3Lemmy is similar to sites like Reddit, Lobste.rs, or Hacker News: you subscribe to forums you're interested in, post links and discussions, then vote, and comment on them. Behind the scenes, it is very different; anyone can easily run a server, and all these servers are...
- Social Network
- Free • Open Source
- Online
- Android
- iPhone
- Self-Hosted
With the rise of widespread government monitoring programs, Tox is an easy to use application that allows you to connect with friends and loved ones without anyone else listening in.
- Instant Messenger
- Free • Open Source
- Mac
- Windows
- Linux
- Android
- Android Tablet
- BSD
- F-Droid
+5Go ahead, video chat with the whole team. In fact, invite everyone you know. Jitsi Meet is a fully encrypted, 100% open source video conferencing solution that you can use all day, every day, for free.
- Video Calling App
- Free • Open Source
- Online
- Android
- iPhone
- Android Tablet
- iPad
- Self-Hosted
- Apple Watch
- F-Droid
An open social network that gives creators independence from platforms, developers the freedom to build, and users a choice in their experience.
- Social Network
- Free • Open Source
- Online
- Android
- iPhone
+1Facilitates teams' real-time collaboration with versatile chat interface and advanced search in configurable channels across multiple platforms.
- Group Chat App
- Freemium • Proprietary
- Mac
- Windows
- Linux
- Android
- iPhone
- Chrome OS
- Android Tablet
- iPad
- Electron
- Software as a Service (SaaS)
+7Mumble was the first and is the most successful and wide spread free and open source software for VoIP. It was the first VoIP software to provide low-latency audio suitable for gaming, and at the same time was a pioneer in high audio quality.
- Group Chat App
- Free • Open Source
- Mac
- Windows
- Linux
- iPhone
- BSD
- iPad
- Self-Hosted
- PortableApps.com
- Snapcraft
- Flathub
+5