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
+4Secure Swiss-based email with end-to-end encryption and zero third-party access. Available across devices, offering a free version to promote privacy.
- WebMail Provider
- Freemium • Open Source
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- iPad
- Tor
+6On-premises file sync, universal access, integrated collaboration, real-time communication with privacy and data control focus.
- Cloud Storage Service
- Free • Open Source
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- Android Tablet
- iPad
- Self-Hosted
- F-Droid
- Cloudron
- Snapcraft
- Docker Hub
- Raspberry Pi
+3A 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
+1Tor is free software and an open network that helps you defend against traffic analysis, a form of network surveillance that threatens personal freedom and privacy, confidential business activities and relationships, and state security.
- Anonymizing Network
- Free • Open Source
- Mac
- Windows
- Linux
- BSD
Standard Notes is a simple and private notes app. It allows you to write and sync your notes across all your devices, iOS, Android, Linux, Windows, MacOS, and web browser.
- Note-taking Tool
- Freemium • Open Source
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- Chrome OS
- Android Tablet
- iPad
- Self-Hosted
- F-Droid
+4End-to-end encrypted app for email, calendar, and contacts, requiring no personal data, with open source code and quantum-resistant security.
- WebMail Provider
- Freemium • Open Source
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- iPad
- Flathub
- F-Droid
+6Lemmy 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...
- Lemmy Client
- Free • Open Source
- Online
- Android
- iPhone
- Self-Hosted
Open-source, self-hosted tool that extracts articles, offers offline mobile reading, powerful filters, migration from other services, and multiple download formats.
- Bookmark Manager
- Freemium • Open Source
- Windows
- Linux
- Online
- Android
- iPhone
- Android Tablet
- iPad
- Self-Hosted
- Google Chrome
- Cloudron
- Opera
- Mozilla Firefox
+4Free messaging without SMS fees, web sync, and multimedia sharing, supporting group and video chats, available on iPhone, Android, and desktop.
- Instant Messenger
- Free • Proprietary
- Mac
- Windows
- Online
- Android
- iPhone
- iPad
- Android Auto
- Android Wear
- Apple Car Play
Khan Academy is not-for-profit with the goal of changing education for the better by providing a free world-class education to anyone anywhere.
- Online Education Service
- Free • Proprietary
- Online
- Android
- iPhone
- Android Tablet
- iPad
Decentralized, open source music streaming; self-hosted, browse by artist, genre; Android, iOS app compatibility. Enjoy unlimited streaming.
- Music Streaming Service
- Free • Open Source
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- Self-Hosted
- F-Droid
- Kodi
+2Work management platform for teams to focus on goals, projects, and tasks, available on mobile, integrating with web, offering offline use and notifications.
- Project Management Tool
- Freemium • Proprietary
- Mac
- Windows
- Online
- Android
- iPhone
- Android Tablet
- iPad
- Software as a Service (SaaS)
+6Powerful photo editing and organizing with cloud backup, available on multiple devices including mobile, web, and desktop.
- Photo Manager
- Paid • Proprietary
- Mac
- Windows
- Online
- Android
- iPhone
- Android Tablet
- iPad
+1Modern visual content platform featuring Stories, Reels, and IGTV, with tools for live-streaming, sharing, and exploring photo and video content.
- Social Network
- Free • Proprietary
- Windows
- Online
- Android
- iPhone