Open Note Scanner – Fast, Free & Open-Source Document Scanner for Android

If you need a simple and reliable way to scan documents, receipts, notes, or whiteboards, Open Note Scanner is one of the best open-source scanning apps available for Android. It turns your phone into a portable scanner, allowing you to capture high-quality scans quickly and without any ads, watermarks, or subscriptions.

Open Note Scanner automatically detects edges, enhances contrast, and converts your photos into clean, readable documents. Whether you’re scanning handwritten notes, business documents, classroom boards, or personal papers, the app delivers sharp, clear results that you can store, share, or export as images or PDFs.

Lightweight and privacy-friendly, it requires no online connection and does not upload your files anywhere. Perfect for students, professionals, and anyone who needs a simple scanner that “just works.”

Key Features

• Automatic edge detection for clean document scans
• Image enhancement for better readability
• Save and export scans as JPG or PDF
• Organize scans into folders for quick access
• Works completely offline — no internet needed
• Lightweight and fast, ideal for older devices
• Supports handwritten notes, books, receipts, whiteboards & more
• Open-source and 100% ad-free
• No watermarks or subscription fees
• Simple, intuitive interface suitable for all users

Why Users Love Open Note Scanner

• Extremely easy to use with clean results
• Perfect for scanning notes, study material, or documents on the go
• No ads, no tracking, no unnecessary permissions
• Fully offline — your documents never leave the device
• Great alternative to heavy, commercial scanning apps

Privacy & Security

Open Note Scanner does not collect or upload any data.
All scanned documents stay stored locally on your device unless you choose to share them.

Because it’s open-source, every aspect of the app’s operation is transparent and trustworthy.

Your scans remain private, secure, and completely under your control.