Secure note taking app with AES-256 encryption
Secure note taking app letting you store sensitive notes, passwords, and private thoughts with end-to-end encryption that no server, no company, and no breach can undo.
Sign up with Google or any email and start right away. Free core features forever. No credit card, secure by default, works on all devices.
Free forever · No credit card · Mac, iPhone, iPad, Android
AES-256-GCM encryption, bank-grade security
TaskNote encrypts every note with AES-256-GCM - the same standard used by banks, the US government, and security-focused tools like Signal. Keys are derived from your password using PBKDF2 and never sent to the server.
- AES-256-GCM encryption on every note
- PBKDF2 key derivation - brute-force resistant
- Same standard as Signal, 1Password, and banks
- Key never transmitted or stored server-side
Secure on public WiFi, even on shared devices
Notes leave your device already encrypted. Even if network traffic is captured on public WiFi, there is only ciphertext to intercept. On shared computers, closing the browser tab clears the session without leaving readable data behind.
- Safe on public WiFi - only ciphertext in transit
- Session ends cleanly on shared devices
- No plaintext cached in browser storage
- HTTPS enforced on all connections
Secure notes and tasks, in one private workspace
Keep encrypted notes, secure tasks on a kanban board, and reminders all in one app. Every item - note, task, reminder - is encrypted with the same zero-knowledge approach. Nothing leaks between features.
- Encrypted notes, tasks, and reminders
- Kanban board with zero-knowledge encryption
- Rich text notes for sensitive content
- Offline access - no network needed to read notes
Export your data, no lock-in
Your notes are stored in standard Markdown format. You can export everything at any time. If you ever leave TaskNote, you take your data with you - no proprietary format, no conversion needed.
- Export all notes in Markdown format
- No proprietary lock-in format
- Download your data anytime
- Readable by any Markdown editor
Questions about security in TaskNote
How secure is TaskNote?
TaskNote uses AES-256-GCM end-to-end encryption with keys derived using PBKDF2. Notes are encrypted on your device before syncing. The server never holds plaintext or your encryption key. This is the same security model used by Signal and 1Password.
Is TaskNote safe to store passwords in?
Yes. TaskNote is end-to-end encrypted, so passwords stored in notes are protected by the same zero-knowledge encryption as all other content. That said, a dedicated password manager offers additional features like autofill and breach alerts.
Does TaskNote store my encryption key?
No. Your encryption key is derived from your password on your device using PBKDF2. It is never sent to the server. TaskNote has no way to access your encryption key.
Is the secure note app free?
Yes. All security features - end-to-end encryption, zero-knowledge architecture - are on the free plan. Notes, kanban board, and reminders are also free. No credit card required.
What happens to my notes if TaskNote shuts down?
You can export all your notes at any time using the /download all notes command. Your notes are stored in standard Markdown format and remain readable without TaskNote.
Is TaskNote secure on public WiFi?
Yes. Since notes are encrypted on your device before leaving, even if network traffic is intercepted on public WiFi, only unreadable ciphertext is exposed. Your notes remain secure.
The secure note taking app with bank-grade encryption
AES-256-GCM, zero-knowledge, free forever. Your notes, your key, your privacy.
Get it for freeFree forever · No credit card · Mac, iPhone, iPad, Android