An open-source messaging app emphasizing privacy with encrypted communication. Share texts, calls, photos, and videos without ads or trackers, available across major platforms. Developed by Signal Technology Foundation and praised globally for security measures.
United States
Maximize your messaging experience with efficient communication, speedy delivery, and optional end-to-end encrypted Secret Chats. Engage in unlimited channels and groups up to 200,000 members. Enhance chat management and media sharing with Telegram Premium and its exclusive benefits. All core features remain free.
United Arab Emirates
Provides secure collaboration with end-to-end encryption, supporting chat, voice, and video calls. Available on all major platforms, it enables digital sovereignty with a decentralized design and interoperability through bridges to systems like Slack and Teams. Includes enterprise-grade SaaS.
United Kingdom
An integrated platform for text and voice communications. Offers tailored channels for different topics, customizable moderation tools, low latency for fluency, and managed user roles for optimal community facilitation.
United States
Open standard protocol enabling decentralized, encrypted instant messaging, VoIP signaling, IoT device connectivity, and persistent data management across federated servers without central control or single points of failure, bridging communication platforms.
United Kingdom
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.
United States
Offers unified communication for teams with advanced real-time messaging, contextual features, versatile chat tools, and organized conversations in dedicated channels with integrated file sharing on Mac, Windows, Linux, and mobile platforms for enhanced productivity.
United States
Open-source messaging platform enabling private, identifier-free chats, encrypted group discussions, file and media sharing, plus audio and video calls. Employs double-ratchet protocol, stores user data on-device, protects metadata, and lets users self-host relay servers.
United Kingdom
Secure communication platform featuring encrypted chats and calls, file and media sharing, self-deleting messages, device verification, group collaboration, and customizable settings. Supports use across multiple devices with no phone number required for access.
Switzerland
Threema is a new mobile messaging app that puts security first. With true end-to-end encryption, you can rest assured that only you and the intended recipient can read your messages.
Switzerland
Self-hosted collaboration platform featuring chat, workflow automation, voice and video calling, screen sharing, AI capabilities, broad third-party integration support, cross-platform apps, compatibility with Slack imports, and flexible deployment options for secure team communication.
United States
Open-source, end-to-end encrypted chat supporting decentralized, serverless communities and Concord. Features self-hosting, cryptographic login, encrypted text channels, threads, live voice and video rooms, compatibility with Nostr and other protocols, custom emojis, and GIFs.
United States
