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Store notes and files in an encrypted notebook that syncs across devices.

A Matrix-based work messenger with direct chats, group rooms, bridges, and optional self-hosting.

A handwriting notebook with on-device encryption and optional sync to storage you choose.

Per-site aliases with forwarding rules and optional PGP encryption

Self-hosted mail with per-user OpenPGP or S/MIME storage encryption

Send a file batch with delivery management and optional encryption

Paid email accounts with a documented encryption-centered design

A terminal mail client with GPG signing and encryption

A Mutt-derived terminal client with documented encryption configuration

Email encryption with delivery records and administrative integration

Edit encrypted text and protect files with passphrases or keys

Email encryption and access controls inside a wider data platform

A Windows distribution for file encryption and key management

Community mail hosting with clear guidance on encryption limits

Manage and preview your dotfiles across Linux, macOS, and Windows machines.

Open-source browser chat for direct messages and XMPP group rooms.

A self-hostable Matrix chat client with encrypted channels, calls, and screen sharing.

Pre-1.0 encrypted team chat for organizations handling sensitive information.

A private mobile journal with on-device encryption, voice capture, and AI reflections.

Hosted mail with aliases and a key-encrypted webmail copy

Build a personal AI agent that chats, calls, schedules and files for you

An Android private-data suite with a folder-based password vault

Browser-based mail with OpenPGP keys and digital signatures

Device-side encrypted email with identity-verification options