The Infinite Canvas &
Dedicated PDF Document Studio
A lightweight, browser-native alternative to heavy desktop note apps. Engineered for fluid visual thinking, dynamic scalene geometry, and multi-page PDF markup with zero lag.
Everything you need for unbounded creativity & study
Engineered from the ground up for high-performance fluid note taking, document markup, and mathematical precision.
Dedicated PDF Studio
Load multi-page PDF documents into an isolated workspace with live thumbnails, page jumping, vector scaling, sticky annotations, and crisp annotated PDF exports.
The second law states that total entropy of an isolated system always increases over time: ĪS ā„ 0. Heat cannot spontaneously flow from colder to hotter bodies.
Precision Scale & Math Ruler
Interactive coordinate scale tool with real-world millimeter markings. Draw razor-sharp straight lines and calibrate exact measurements across your canvas.
Smart Ink AI Shapes
Draw hand-sketched lines, circles, polygons, or trianglesāSmart Ink immediately recognizes geometry and snaps them into beautiful, pristine vector objects.
Draggable Triangle Vertices
Grab individual triangle corner handles to morph any shape freely into scalene, right-angled, acute, or obtuse triangles with live side length and angle recalculation.
Custom Paper & Grid Styles
Switch seamlessly between Blank canvas, Solid Math Grid, Dotted Bullet Grid, and Ruled/Lined pages with customizable spacing and warm paper tints.
Zen Focus & Cloud Sync
Press 'F' to enter an immersive distraction-free canvas mode. Continuous auto-save instantly protects your work via backend syncing and P2P collaboration.
Dedicated Multi-Page PDF Document Studio
No more clunky PDF whiteboard imports. Open academic papers, textbooks, and worksheets inside a focused, document-first studio with thumbnail sidebars, ink layers, and vector precision.
Schrƶdinger's Wave Equation:
Built for Students, Educators, and Creators
Explore how NestPad transforms diverse workflows into effortless visual clarity.
Fluid Infinite Canvas with Multi-Level Hierarchy
Organize complex projects with notebooks, chapters, and nested pages. Seamlessly pan and zoom anywhere with ultra-crisp GPU vector rendering.
- Customizable paper backdrops (Blank, Solid Grid, Dotted, Ruled)
- Pen presets bar with customizable nib widths and swatches
- Complete undo/redo history and continuous auto-saving
Infinite Vector Whiteboard
Instant responsiveness with smooth cubic spline interpolation.
Interactive Mathematical Geometry Suite
Construct and manipulate accurate geometric figures. Morph triangle vertices freely into scalene, right-angled, or obtuse triangles with live side lengths.
- Real-world coordinate scale ruler with millimeter graduation
- Axis snapping and straight-line drawing guides
- 3 Corner vertex handles for freeform triangle distortion
Draggable Vertex Triangles
Dynamic measurements showing exact side lengths and internal angles.
Smart Ink Instant Shape Recognition
No need to manually pick shape tools. Simply sketch a rough polygon, circle, or arrowāNestPad analyzes corner angles and converts it into a crisp vector shape in milliseconds.
- Recognizes Rectangles, Ovals, Triangles, Stars, and Polygons
- Asymmetric triangle recognition for scalene shapes
- Works seamlessly on both whiteboard and PDF document pages
Smart Shape AI Engine
Transform loose scribbles into publication-ready figures instantly.
Customizable Paper Styles & Background Tints
Tailor your writing surface for every subject. Choose between Blank sheets, Solid Math Grids, Dotted Bullet Grids, and Ruled/Lined pages with adjustable spacing.
- 4 Grid Types: Blank, Solid Grid, Dotted Grid, and Ruled/Lined
- Adjustable grid spacing: Tiny (10px), Small (15px), Medium (30px), Large (40px)
- Warm Cream, Cool Gray, Dark Slate, and Navy Dark paper palettes
Paper & Grid Customizer
Switch effortlessly between bullet journaling, engineering math, and document markup.
Plans that scale with your ambitions
Start free forever, or upgrade to unlock unlimited notebooks, multi-page PDF exports, and high-speed cloud storage.
- 2 Active notebooks
- 2 Sections & 2 Chapters / notebook
- 5 Pages per notebook
- 2000Ć2000px Whiteboard area
- Direct PDF annotation
- 2 Custom pen presets
- Continuous local auto-save
- 4 Active notebooks
- 3 Sections & 3 Chapters / notebook
- 10 Pages per notebook
- 4000Ć4000px Whiteboard area
- 500MB Cloud storage
- Direct PDF annotation
- 4 Pen presets & Drive link import
- PNG export & up to 3 email shares
- 6 Active notebooks
- 5 Sections & 5 Chapters / notebook
- 15 Pages per notebook
- Unlimited Whiteboard area
- 1GB Cloud storage
- Direct PDF annotation
- 6 Pen presets
- High-resolution PNG & PDF export
- Real-time sync & up to 5 shares
- Unlimited notebooks & pages
- Unlimited sections & chapters
- Unlimited Whiteboard area
- 5GB High-speed Cloud storage
- Direct PDF annotation
- Unlimited Pen presets
- All export formats & Drive link import
- Unlimited shares & Real-time sync
What creators and students say
Join thousands of students, researchers, and designers crafting with NestPad.
"The dedicated PDF Studio is an absolute game-changer for medical school textbooks. I can annotate diagrams, add sticky notes, and export high-res PDFs in seconds."
"Being able to freely drag triangle vertices and see real-time side lengths and angle measurements makes teaching geometry over Zoom incredibly engaging."
"The 120 FPS infinite canvas combined with Smart Ink is smoother than any native iPad app I've used. Zen mode helps me enter deep focus for hours."
Got questions? We've got answers.
The Most Fluid OneNote Web Alternative
Leave sluggish notebook apps behind. Experience an unbounded infinite canvas, scalene geometry suite, and dedicated PDF studio right in your browser.
Open NestPad Free in Browser