Dev & Data ToolboxYour Private and Secure Online Notepad
Create and store private, encrypted notes directly in your browser. Using military-grade AES-256 encryption, your data never leaves your computer. Free, fast, and no sign-up required.
Enter Your Master Password
Enter your password to decrypt and access your secure notes.
How It Works
1. Set Master Password
Create one strong master password that will encrypt all your notes. This password is never stored anywhere.
2. AES-256 Encryption
Your notes are encrypted using military-grade AES-256-GCM encryption before being saved to your browser.
3. Local Storage Only
Encrypted data is saved only in your browser's local storage. We never see your content or password.
Features at a Glance
🔒 Security Features
- ✓AES-256-GCM encryption with PBKDF2 key derivation
- ✓Auto-lock after 15 minutes of inactivity
- ✓Password strength meter and validation
- ✓Secure export/import with encrypted backups
- ✓Complete data wipe functionality
📝 Editor Features
- ✓Real-time auto-save (every 2 seconds)
- ✓Full-text search across all notes
- ✓Word and character count tracking
- ✓Organized note list with previews
- ✓Clean, distraction-free interface
Why Your Notes Are Completely Private
🔐 Military-Grade Encryption
We use AES-256-GCM, the same encryption standard trusted by governments and banks worldwide. Your password is processed through PBKDF2 with 100,000 iterations to create an unbreakable encryption key.
Security Level: Even with today's most powerful supercomputers, it would take longer than the age of the universe to crack AES-256 encryption.
🖥️ Client-Side Only Processing
Everything happens in your browser using the Web Crypto API. Your plaintext notes, passwords, and encryption keys never leave your device. We literally cannot read your notes even if we wanted to.
Zero Knowledge: We have zero knowledge of your data. All encryption happens locally on your device.
💾 Secure Local Storage
Your encrypted notes are stored in your browser's localStorage. The raw data is completely scrambled without your password. Even if someone gains access to your computer, they would still need your master password to decrypt anything.
Data Isolation: Each browser and device stores data separately. Your notes are completely isolated and secure.
Frequently Asked Questions
Are my notes really private?
Yes, absolutely. Your data is encrypted using a key derived from your password before it's saved. Without your password, the data is just unreadable gibberish. We use the same encryption standards that protect classified government documents and banking transactions.
What happens if I forget my password?
Your notes will be lost forever. Because we never see or store your password, we have no way to recover your data. This is a feature, not a bug, as it guarantees ultimate privacy. We strongly recommend regularly backing up your notes using the export feature and storing your password in a secure password manager.
Is browser localStorage a safe place to store notes?
For encrypted data, yes. The raw data stored in your browser is scrambled with military-grade encryption. An attacker would need access to your unlocked computer AND your master password to read the notes. It's significantly safer than storing plain text files on your computer.
Can I access my notes on another computer?
Not automatically. This tool is designed for local-first privacy. To move your notes to another device, use the "Export" feature on one computer to download an encrypted backup file, then use the "Import" feature on another computer. You'll need your original password to decrypt the backup.
How does auto-save work with encryption?
Auto-save encrypts your note content every 2 seconds after you stop typing. The encryption happens instantly in your browser, so there's no performance impact. Your notes are always encrypted before being saved to localStorage, ensuring they're never stored as plain text.
What's the difference between this and other note apps?
Most note apps store your data on their servers where employees could potentially access it. Our app never sends your data anywhere - everything stays on your device. While apps like Google Keep or Evernote offer cloud sync, they sacrifice privacy. Our app prioritizes privacy over convenience, giving you complete control over your data.
Can I export my notes as plain text?
Currently, exports are encrypted for security. However, once your notes are unlocked in the editor, you can manually copy and paste the content to any text file. We may add plain text export in the future with appropriate security warnings, but encrypted exports ensure your backup files remain secure even if they're accidentally shared.
Perfect For
Journalists & Researchers
Protect source information, research notes, and sensitive story details with unbreakable encryption.
Business Professionals
Keep confidential business ideas, strategy notes, and proprietary information secure and private.
Healthcare Workers
Store personal patient observations and medical notes while maintaining HIPAA compliance.
Developers & IT
Securely store API keys, configuration snippets, and sensitive technical documentation.
Students & Academics
Protect thesis research, personal reflections, and academic work from unauthorized access.
Writers & Creatives
Keep story ideas, character development, and creative projects private until you're ready to share.
Security Comparison
| Feature | Secure Notes | Google Keep | Evernote | Apple Notes |
|---|---|---|---|---|
| End-to-end encryption | ✅ | ❌ | ❌ | ⚠️ |
| Zero server storage | ✅ | ❌ | ❌ | ❌ |
| Open source encryption | ✅ | ❌ | ❌ | ❌ |
| No registration required | ✅ | ❌ | ❌ | ❌ |
| Cross-device sync | ❌ | ✅ | ✅ | ✅ |
⚠️ Apple Notes offers encryption but Apple holds the keys and can decrypt your data
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Privacy & Security
Your privacy is our top priority. Our Secure Notes tool processes all encryption and note management locally in your browser using the Web Crypto API, ensuring that your data never leaves your device. We don't collect, store, or transmit any of your notes or passwords.