These platforms provide robust digital vaults designed to protect your sensitive documents, keys, and credentials from unauthorized access. The services listed here prioritize end-to-end encryption and zero-knowledge architectures to ensure that only you hold the master access to your files. When selecting the right solution for your needs, consider the strength of the underlying encryption standards, the convenience of cross-platform syncing, and how easily you can implement granular sharing permissions for collaborative tasks.

The freedom of Bitcoin. In an envelope.

Flat-rate Postgres with built-in AI and HIPAA out of the box

On-device voice notes with AI transcription and search

人間が閲覧できない秘密基地。データはAIのみが処理

Never miss an important document expiration again.

"Record 24/7 — your audio never leaves your Google Drive"

Offline AI Dictation, Notes, and Ask AI

Private document scanner with on-device AI

The ultimate zero-knowledge, offline-first AI Second Brain

Ask your documents anything — and never miss a renewal again

Box for AI agents to secure enterprise data storage

Organize thoughts with AI that never leaves your phone.