Top Alternatives to ChatSecure

Telegram is a fast and secure cloud-based instant messaging platform offering robust privacy features, large group support, file sharing, and cross-platform synchronization, making it a versatile communication tool.

Tox is a free, open-source, and secure peer-to-peer instant messaging and video calling protocol designed for strong privacy and censorship resistance. It provides end-to-end encrypted communications without reliance on central servers.

Signal is a secure, open-source messaging application that uses end-to-end encryption to protect user communications. It offers text messaging, voice and video calls, group chats, and file sharing, all with a strong focus on privacy and security. Available on multiple platforms, Signal is a leading choice for individuals prioritizing confidential conversations.

Ring (SFLphone) is a free and open-source communication platform offering secure messaging, voice, and video calls. It leverages decentralization and end-to-end encryption for enhanced privacy across multiple operating systems including Linux, Windows, macOS, and Android.

Off-the-Record Messaging (OTR) is a cryptographic protocol designed to provide secure, end-to-end encrypted instant messaging conversations for enhanced privacy and security.

Xabber is a free and open-source XMPP (Jabber) client for Android. It provides secure and reliable instant messaging with support for various XMPP features, including encryption, group chat, and decentralized communication. Leveraging the open XMPP protocol, Xabber offers a privacy-friendly alternative to centralized messaging platforms.

Threema is a secure and private messaging application that prioritizes user anonymity and data protection. It offers end-to-end encryption for all messages, calls, and files, requiring no phone number registration to enhance privacy.

Bitmessage is an open-source peer-to-peer encrypted messaging system designed to provide robust privacy and security. It operates without central servers, ensuring decentralized communication and offering anonymity by design. Ideal for those prioritizing secure and private digital interactions, it leverages strong encryption to protect messages from eavesdropping.

TorChat is a defunct decentralized anonymous instant messenger leveraging Tor hidden services for secure text communication and file sharing without central servers.

Psi+ is a robust, cross-platform XMPP/Jabber client tailored for users who prioritize control, privacy, and extensibility. As a development branch of the classic Psi client, it offers advanced features for secure and customizable instant messaging.

Conversations is a privacy-focused, open-source XMPP/Jabber client for Android. It offers robust end-to-end encryption using OMEMO and OTR, supports modern XMPP extensions, and provides a secure, decentralized messaging experience without relying on proprietary servers. It's an ideal choice for users prioritizing security and open standards.

Sicher is a freeware instant messaging application designed for enhanced privacy and security on mobile platforms like iOS, Android, and Windows Phone. It offers end-to-end encrypted messaging, secure file and media sharing, and features like self-destructing messages, focusing on keeping your conversations private.

Otr.to is a secure, privacy-centric, browser-based chat client leveraging Off-the-Record (OTR) encryption. It offers peer-to-peer communication for enhanced anonymity and decentralization, making it a strong choice for private and secure instant messaging without requiring installations.

Finch is a versatile, command-line based instant messaging client that leverages the Pidgin network libraries. It supports multiple protocols like AIM, Jabber, MSN, Yahoo!, IRC, and more, providing a text-only interface for users who prefer the efficiency and minimalism of the console environment.

Bit Chat is a secure, open-source, peer-to-peer instant messenger platform that prioritizes user privacy and security through robust end-to-end encryption and a decentralized network architecture. It empowers users with direct, encrypted communication, bypassing central servers and enhancing resistance to surveillance and censorship.

Zulip is a powerful open-source group chat application designed for team collaboration. It uniquely structures conversations around topics, enabling users to easily catch up on important discussions and manage information overload. Zulip facilitates secure communication with integrated file sharing and various integrations.

Silence.im is an encrypted text messaging application for Android that prioritizes user privacy and security. It allows for secure communication via SMS/MMS, offering end-to-end encryption when communicating with other Silence users. The app is open-source and ad-free, providing a simple yet powerful platform for private mobile messaging.

Disa is a unified messaging hub that consolidates conversations from various services like SMS, Facebook, and WhatsApp into a single interface, simplifying communication management.

Wickr is a secure and private instant messaging platform designed for individuals and teams who prioritize confidentiality. It offers end-to-end encryption, self-destructing messages, and a focus on anonymity to ensure that conversations and shared data remain protected.

Pidgin-Encryption is a plugin for the popular Pidgin instant messaging client that provides transparent, end-to-end encryption for your conversations using RSA.

Dasher Messenger is a feature-rich instant messaging application designed for connecting with friends and groups. It goes beyond basic text messaging, offering capabilities to share various forms of media, integrate external content, and even facilitate peer-to-peer transactions.