Your data is yours.
Period.
Memry is local-first, end-to-end encrypted, and open source. We built it for people who take ownership of their data seriously.
Zero-knowledge
We cannot see your notes, even if compelled. The math guarantees it.
Plain files
Standard Markdown on your disk. No proprietary format, no lock-in.
No passwords to leak
Devices link via QR code. No central account, no credential database.
How we protect your data
Six layers of privacy, from storage to sync.
Local-first storage
Your notes are plain Markdown files stored in a folder you choose. No proprietary database, no vendor lock-in.
- Plain .md files on your filesystem
- Pick any folder — iCloud, Dropbox, or fully offline
- SQLite for metadata, FTS5 for search
- Zero cloud dependency for core functionality
End-to-end encryption
When you sync, every byte is encrypted before it leaves your device. We cannot read your data. Nobody can.
- libsodium (XChaCha20-Poly1305) for all sync traffic
- At-rest encryption for local database
- Keys derived on-device, never transmitted
- OS keychain for credential storage
Minimal telemetry
We collect anonymous usage analytics to improve the app. That is it. Your content never leaves your device.
- Anonymous feature-usage counters only
- No content, filenames, or metadata collected
- No third-party trackers or ad networks
- Telemetry can be fully disabled in settings
On-device AI
The AI assistant runs a local model on your machine. Your notes are never sent to OpenAI, Google, or anyone else.
- Local inference via on-device model
- No API calls to external AI providers
- Context stays in your process memory
- Works fully offline
Encrypted sync
Multi-device sync uses CRDTs for conflict-free merging. Link devices with a QR code — no account passwords to leak.
- CRDT-based sync via Yjs
- Conflict-free, deterministic merging
- QR code device linking — no passwords
- Incremental sync with per-field vector clocks
Open source
Memry will be fully open source. Audit the code, verify our claims, build on top of it.
- Repository coming soon at github.com/memrynote/memry
- AGPL-3.0 license
- Reproducible builds planned
- Security audits welcome
Found a vulnerability?
We take security reports seriously. Reach out and we will respond within 24 hours.
security@memrynote.com