DailyTxT
Encrypted diary and journal web application
497 stars 41 forks last commit first released MIT
Actively maintained
Last commit 20 Aug 2026.
DailyTxT is a self-hosted encrypted diary and journal web application that encrypts user data before writing it to server storage. It provides a responsive web UI with a markdown editor, file attachments, tagging and search while keeping each account's data encrypted with per-user keys.
Key Features
- Client-side encryption workflow using ChaCha20-Poly1305 for stored data and Argon2id for deriving keys
- Per-user encryption keys and backup-key mechanism for password recovery; admin cannot read user plaintext
- Markdown editor with live preview and custom entry templates
- Encrypted file uploads (images automatically detected) with a 500 MB per-file limit
- Full-text server-side search across entries, tags and filenames
- Tagging, calendar navigation, read/distraction-free mode and per-user statistics (GitHub-like activity graph)
- Export entries (including uploaded files) to HTML and data stored as JSON files (no external database required)
- Multi-user support with an admin panel for user management and temporary open registration
- Responsive design and PWA support for mobile/home-screen installation
Use Cases
- Personal encrypted journaling where entries and attachments are stored encrypted on a self-hosted server
- Small teams, families or groups needing separate user accounts with per-account encryption and admin-managed access
- Portable, long-term archival of journal data stored as readable JSON files and exportable to HTML
Limitations and Considerations
- Search requires server-side access to decrypted data for indexing; the project does not provide full end-to-end searchable encryption
- Data is stored as JSON files rather than a database; this favors portability but may affect scaling and performance for very large installations
- Authentication stores a derived key in an http-only cookie for API calls; administrators should follow best practices for TLS and host hardening
DailyTxT is focused on privacy-minded journaling with practical features like search, attachments and export while keeping user data encrypted at rest. It is suitable for users who want a portable, self-hosted diary with per-account encryption and straightforward deployment via Docker.
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