Handwriting and PDFs
For Free.

A workspace built by math students.

StainyNotes Tablet Interface
StainyNotes Phone Interface
Get it on Google Play

Everything you need to study.

Digital Ink

Supports digital pens.

Work with PDFs and Images

Import lecture slides and take notes.

Cloud Sync

Supports syncing your notes and documents to your personal Google Drive.

Engineered for Performance

Built on a custom engine you can rely on.

Clever assistance
Geometry Helper

Assists with geometric drawings. Recognizes many shapes.

PDF Export
PDF Export

Allows you to export your notes as high-quality PDFs, without any watermarks.

Stability
Offline Mode

Doesn't require an internet connection to function.

Cloud Support
Sync to Drive

Keep your notes synchronized across all your devices. Stainy Notes syncs them seamlessly in the background.

File Format
Shareable Format

Using a new fast handwriting file format optimized for sharing and collaboration.

Efficiency
Lightweight

Notes take up way less space than standard PDF exports while maintaining perfect vector quality.

Capacity
500+ Pages

Advanced memory management allows smooth working through massive handwritten books.

System Load
Low Impact

Designed to be battery-friendly, so your device lasts through every lecture of the day.

Used by students at Top Universities

"With its minimalist interface, Stainy Notes allows me to focus on my studies without any distractions."

Markus H. Studying Mathematics @ TU Munich

"Perfect for my workflow: Taking lecture notes, solving problems, and exporting everything as PDFs—all in one place."

Jonas S. Studying Mathematics @ LMU Munich
Organization

Stay Organized

Keep your lectures, homework, and sketches structured with a minimalist home menu designed for speed.

  • ✓ Create folders
  • ✓ Instant search across titles
  • ✓ Visual previews of every document
StainyNotes Home Menu
Customization

The Template Studio

Stop settling for standard grids. Create the exact paper style you need for your specific subject.

  • ✓ Adjust grid spacing and line width
  • ✓ Custom page dimensions
  • ✓ Personalized color tints for comfortable night-time writing
StainyNotes Template Studio

Frequently Asked Questions

Does Stainy Notes support my digital pen?

Yes, the app features digital ink support optimized for precise handwriting, working with most popular digital pens. Additionally, it includes a built-in Geometry Helper that automatically recognizes and assists with complex geometric drawings and shapes.

Can I work with PDF files and lecture slides?

Absolutely. You can easily import and export your lecture slides, PDF documents, and images to take handwritten notes directly on top of them.
You can also add or remove pages as needed. Once you are finished, you can export your notes as high-quality PDFs without any watermarks.

How does the cloud sync functionality work?

Stainy Notes supports seamless background synchronization with your personal Google Drive, keeping your data entirely in your control.
When enabled, you can sign in on a new device to access your existing notes.

Which writing tools are included?

Stainy Notes includes marker and writing pens, both customizable in terms of size and color.

Does the app require an internet connection?

No, Stainy Notes features a full offline mode. You can take notes, solve math problems, and edit PDFs during your lectures without any internet connection. You can sync your data later when you are back online.

Which file format does Stainy Notes use?

Stainy Notes uses its own vector file format optimized for performance, small file sizes, and seamless integration with the app's features.
You can share Stainy Notes files with other users of the app.

Are there any limits?

No. You can create as many notes and templates as you like with Stainy Notes. There are no limits.

Who develops Stainy Notes and why was it created?

Stainy Notes is developed by mathematics and computer science students in Germany, who needed a free and trustworthy handwriting app for their daily work.