Start your first board

Create your first interactive lesson or pick from our educational templates below.

Everything a Classroom Needs

Engineered exclusively for classroom instruction, mathematics lectures, science diagrams, and interactive lessons.

100% Offline & Private

Zero backend, zero cloud databases, zero tracking. All whiteboard decks and uploaded images are persisted securely inside your local browser via IndexedDB.

Authentic Felt Duster

Physical path-slicing eraser that cuts and trims strokes like a real blackboard eraser. Features organic floating chalk dust particles and synthetic duster cloth audio rustle.

Client-Side LaTeX

Built-in KaTeX engine renders complex mathematical equations, integrals, fractions, chemistry reactions, and Greek symbols with offline SVG/Canvas caching.

Virtual STEM Tools

Interactive millimeter measurement ruler with edge-line snap, 180° acrylic protractor, circle drafting compass, floating scientific calculator, and audio-chime countdown timer.

Presentation Mode

Fullscreen lecture mode with speaker notes drawer, glowing red laser pointer with smooth fading trail, spotlight focus aperture, and 3-second disappearing ink annotations.

Multi-Page PDF Export

100% in-browser multi-page PDF generation via jsPDF (A4, A3, Letter, 16:9), transparent PNG, JPEG, WEBP at up to 3x resolution, and portable .whiteboard project backup files.

STEM Classroom Technology

Virtual Instruments for Science & Math

Precision geometric drafting tools on any touchscreen, interactive flat panel, or desktop.

Virtual Ruler (U)

Millimeter & centimeter tick marks with degree angle readout and one-click straight edge line snapping.

180° Protractor (J)

Transparent acrylic semi-circle with dual-direction degree markings and center crosshair for geometry proofs.

Scientific Calculator (K)

Trigonometric, logarithmic, and power functions with an "Insert Result to Whiteboard" button.

Classroom Timer (W)

Large digital countdown clock and stopwatch with synthesized Web Audio chimes when time expires.

Keyboard Hotkeys

Visible Shortcuts on Every Tool

All shortcuts displayed directly on tool buttons and active during teaching.

Select & TransformSelect, move, resize, or marquee-box drag

V

Pen / FreehandSmooth quadratic Bezier drawing

P

MarkerSemi-opaque vibrant classroom marker

M

HighlighterMultiply blend mode overlay

H

Calligraphy BrushVariable-pressure brush

B

Classroom DusterPhysical felt eraser with chalk dust

E

ShapesRectangles, circles, stars, speech bubbles

R

Text BoxClick-and-type with font styling bar

T

Sticky Note5 pastel colors with drop shadows

S

LaTeX EquationKaTeX formula creator with presets

X

Virtual RulerMillimeter measurement & edge snap

U

Protractor180° acrylic angle measurement

J

CalculatorScientific calculator with board insertion

K

Classroom TimerCountdown clock with audio chime

W

UndoRevert last action

Ctrl+Z

RedoRe-apply reverted action

Ctrl+Y

Delete SelectedRemove highlighted object

Del

DuplicateClone selected object

Ctrl+D

PresentStart fullscreen presentation mode

F5

ExportOpen PDF & image export dialog

Ctrl+E

Frequently Asked Questions

Everything you need to know about the offline-first classroom whiteboard.

The Smartest Digital Whiteboard for Classrooms