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A free Markdown notebook that stores notes as ordinary files and offers optional encrypted sync.

A local-first Markdown note app with an optional self-hosted encrypted sync server.

Manage several encrypted-folder backends from a desktop interface

A maintained Thunderbird fork with encrypted-message search

Private business messaging with encrypted groups, files, voice calls, and disappearing messages.

End-to-end encrypted messaging, voice, video, and file sharing for organizations.

A private, open-source writing app built around searchable notes, pins, and trails.

Local Markdown notebooks with backlinks, search, and optional self-hosted encrypted sync.

Plan and share personal or professional events in an encrypted calendar across desktop and mobile apps.

An open-source handwriting notebook with nested folders and encrypted cross-device sync.

Keep encrypted workplace messaging on a self-hosted XMPP server.

AI-native Markdown notes with encrypted sync for developers

OpenPGP mailboxes bundled with encrypted file storage

Configurable browser with blocking and encrypted sync

Browse compatible encrypted filesystems inside Android

Encrypted IPv6 overlay with public-key-derived addressing

Keep a working folder and an encrypted folder in sync

A configurable proxy for encrypted DNS protocols

Organize team messages, channels, and calls with optional end-to-end encrypted chats.

Provision self-managed cloud VMs through a portal, CLI, API or Terraform, using predefined sizes and per-second billing.

A Markdown notes app with wikilinks, graph views, offline work, and free encrypted sync.

A mobile crypto wallet with encrypted account backup and optional password recovery

A local-first personal knowledge workspace for private notes, linked objects, and databases.

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