Secure Messaging Softwares and Apps

Discover best Secure Messaging softwares, apps and websites.

Best Secure Messaging Softwares and Apps

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Signal

Signal

Security & Privacy Secure Messaging
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.
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Open Source
Strongest end-to-end encryption by default for all communica...
Wire

Wire

Photos & Graphics Messaging
Wire is a secure, cross-platform messaging and collaboration client offering end-to-end encryption by default for all communication types including messaging, voice and video calls, and file sharing across desktop and mobile devices.
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Free
Strong, always-on end-to-end encryption for all communicatio...
Kolab Now

Kolab Now

Backup & Sync Web Application
Kolab Now is a comprehensive, secure, and privacy-focused web-based email and groupware suite. Built entirely on free and open-source software, it offers a full range of collaborative tools including email, calendar, contacts, and document management, prioritizing user data ownership and security.
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Commercial
Strong focus on user privacy and data security.
Threema

Threema

Social & Communications Instant Messaging
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.
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Commercial
Strong end-to-end encryption for all communication types.
Conversations

Conversations

Social & Communications Mobile App
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.
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Freemium
Strong end-to-end encryption (OMEMO, OTR).
Sicher

Sicher

Social & Communications Instant Messaging
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.
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Commercial
Strong end-to-end encryption for all communication.
Otr.to

Otr.to

File Sharing Web Application
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.
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Open Source
Strong OTR encryption for secure communication.
Mailfence

Mailfence

Office & Productivity Web Application
Mailfence is a secure, privacy-focused email service that provides end-to-end encryption and digital signatures using OpenPGP. It also includes a fully integrated suite of office tools like Calendar, Documents, and Contacts, all protected by strong security features.
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Freemium
Strong focus on privacy and security with built-in OpenPGP e...
Zulip

Zulip

Development Web Application
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.
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Open Source
Excellent at organizing complex conversations with its uniqu...

Recently Added Secure Messaging Apps and Services

Mailfence

Mailfence

Office & Productivity Web Application
Mailfence is a secure, privacy-focused email service that provides end-to-end encryption and digital signatures using OpenPGP. It also includes a fully integrated suite of office tools like Calendar, Documents, and Contacts, all protected by strong security features.
more
Freemium
Strong focus on privacy and security with built-in OpenPGP e...
Zulip

Zulip

Development Web Application
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.
more
Open Source
Excellent at organizing complex conversations with its uniqu...
Otr.to

Otr.to

File Sharing Web Application
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.
more
Open Source
Strong OTR encryption for secure communication.
Sicher

Sicher

Social & Communications Instant Messaging
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.
more
Commercial
Strong end-to-end encryption for all communication.
Conversations

Conversations

Social & Communications Mobile App
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.
more
Freemium
Strong end-to-end encryption (OMEMO, OTR).
Kolab Now

Kolab Now

Backup & Sync Web Application
Kolab Now is a comprehensive, secure, and privacy-focused web-based email and groupware suite. Built entirely on free and open-source software, it offers a full range of collaborative tools including email, calendar, contacts, and document management, prioritizing user data ownership and security.
more
Commercial
Strong focus on user privacy and data security.