KrizNotes

Simple, Private & Open Source Note-Taking for Android

   

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📱 Screenshots

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💡 Our Motto

"We don't need money from our users — we believe in giving you free, private, and open-source software. We just want your love and support!" ❤️

KrizNotes has no ads, no paywalls, no tracking, and no donation gates. Everything is completely free, transparent, and open source under the GNU GPL-3.0 license.

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✨ Features

• 🔒 100% Offline & Private: Zero cloud sync, zero telemetry, and zero accounts required. All notes are saved strictly on your local device in an encrypted Room SQLite database.
• 🛡️ Encrypted Note Vault: Secure sensitive notes with custom passcode protection. Hidden and encrypted until unlocked.
• ✍️ Rich Markdown Editing: Full markdown support with headers, bold, italics, checklists, lists, blockquotes, and code syntax highlighting with live preview.
• 📂 Text File Import & Backups: Import .txt and .md files directly into your notes. Create password-protected encrypted .zip backup archives anytime.
• 🎨 Material You & AMOLED Dark Mode: Adaptive system dynamic theming, custom accent colors, adjustable card corner radius, and a true-black Extreme AMOLED mode.
• 👁️ Privacy Screen Protection: Optional FLAG_SECURE mode blocks screenshots and obscures app contents from the recent apps switcher.
• ⚡ Lightweight & Fast: Built natively with Kotlin and Jetpack Compose for buttery-smooth performance.

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🔒 Privacy & Permissions

KrizNotes is designed with absolute privacy in mind:

• No Personal Data Collected: We do not collect, transmit, store, or sell your personal details or note contents.
• Minimal Permissions: Only uses Android's native Storage Access Framework (SAF) when you manually choose to import/export notes, and biometric hardware for unlocking your vault.
• Read our full Privacy Policy and Terms of Service.

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💬 Community & Contact

• Developer: altkriz
• Email: altkriz@proton.me
• Website: altkriz.github.io
• Instagram: @altkriz
• Feature Requests / Issues: GitHub Issues

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📜 License

KrizNotes is distributed under the GNU General Public License v3.0 (GPL-3.0).

KrizNotes
Copyright (C) 2026 altkriz

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

See the full LICENSE file for more information.