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Manage several encrypted-folder backends from a desktop interface

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

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.

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.

Collect Markdown notes in folders and tags, then search or browse them in a feed.

Capture notes and find them later with tags and Smart Folders.

A maintained Thunderbird fork with encrypted-message search

Keep a working folder and an encrypted folder in sync

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

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

AI-native Markdown notes with encrypted sync for developers

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

OpenPGP mailboxes bundled with encrypted file storage

Configurable browser with blocking and encrypted sync

Browse compatible encrypted filesystems inside Android

Organize to-dos with folders, tags, contexts, subtasks, and search.

Encrypted IPv6 overlay with public-key-derived addressing

A local Markdown editor for people who want rich text and source files in their own folders.

Organize, share, and collaborate on AI prompts for ChatGPT, Claude, and Gemini in one workspace.

A configurable proxy for encrypted DNS protocols

Social content folders, batch scheduling and notification-assisted group posting

Keep device folders synchronized with cloud folders