Download Darklock Secure Notes

End-to-end encrypted, zero-knowledge note-taking. Your notes are encrypted on-device with libsodium (Argon2id + XChaCha20-Poly1305) — the server never sees your content. Available as a desktop app and installable web app.

Zero-Knowledge EncryptionArgon2id KDF · XChaCha20-Poly1305 at rest

Cross-Platform SyncOptional E2E sync — server sees only ciphertext

Rich Text EditorMarkdown support · code blocks · attachments

Offline-FirstWorks without internet · syncs when connected

Workspace OrganisationNotebooks · tags · full-text search

Open Crypto Primitiveslibsodium · auditable · no proprietary black boxes

Linux

Ubuntu 20.04+ / Debian 11+ · x86_64

Download .deb

Recommended · system-wide install

Download AppImage

Portable · no installation needed

Quick Install

sudo apt install ./darklock-notes_0.1.0_amd64.deb

Windows

Windows 10 / 11 · x86_64

Coming Soon

Tauri v2 build in progress

Alternative

Use the web app below on any browser.

iOS

iPhone · iPad · Safari

Open Web App

Safari · add to Home Screen

Install to Home Screen

1. Open link above in Safari
2. Tap Share button (□↑)
3. Tap "Add to Home Screen"

Linux Ubuntu 20.04+ / Debian 11+
x86_64 · WebKitGTK 4.1
~60 MB disk

Windows Windows 10 (1809)+
x86_64 · WebView2 Runtime
Coming soon

iOS / Web iOS 16+ · Safari 16+
iPhone 8+ · All iPads
Web app · no install needed