Brushes
drawing.js:38Marker · Neon · Velocity · Rainbow · Mono · Sparks — six distinct render behaviours
REC
00:00
BRUSHES
Marker
Neon
Velocity
Rainbow
Mono
Sparks
SIZE
12
OPACITY
100%
grab the eye.keep it moving.mark what matters.
PALETTES
Neon
Sunset
Ocean
Y2K
Monochrome
Forest
ANY HEX
VIEW
1.00×
pan three-finger pinch
zoom thumb + middle
SNAP · 8 FAMILIES
linearccircleellipsetrianglerectanglepolygonpolyline
SCULPT
RopeRubber
length 100%
keeps its length
ERASER
pinch opening
10 px
eraser size · 10 → 80
Ctrl/⌘Z
BACKGROUND
Type
CameraFrosted
Solid Color
Gradients
Animated
Grain Texture
Camera
⠿NOTE✕
OffDrawEraseSculptMarkerNeonVelocityRainbowMonoSparks
Neon · picked with a pinch
Step 1 of 6 · Draw
1Draw
2Erase
3Session Menu
4Pan Canvas
5Zoom In / Out
6Star Pointer
SKIP appears after 30 s
HOLD YOUR HAND OPEN
0.0 s
camera samples · a slow camera drops frames
the stroke · latched, continuous
frame edge — tracking holds past it
for lessons · streams · rooms
LANDSCAPE · desks & demos
CAPTURE
SnapshotPNG · full resolution
RecordMP4 · WebM00:00 / 60:00
TIMELAPSE
1×2×3×5×
getairva.com/app.html⊕
Install AirVA?Opens in its own window, like an app.
CancelInstall
Six brushes
Marker, Neon, Velocity, Rainbow, Mono, Sparks — six behaviours, not six colours of one pen.
drawing.js:38A real highlighter
Drop the Marker's opacity and it becomes a highlighter — for notes, screenshots, lessons.
brush-panel.js:10848 colours + a wheel
Six palettes that agree with each other; an HSV wheel behind them stores any hex.
drawing.js:12An infinite canvas
Strokes live in world coordinates — the screen is only a window. Pinch three fingers to pan, thumb + middle to zoom.
viewport.jsSnap to a perfect shape
Draw it rough, hold still, and it becomes exact — eight families, from a line to a rectangle.
shape-fit.js:398Sculpt — rope & rubber
Grab a finished line and bend it. Rope keeps its length; rubber stretches.
sculpt.js:68An eraser that fits your hand
Open your pinch wider and the eraser grows with it — then sweeps clean.
main.js:3658Undo, everywhere
Three fingers open the session menu; Undo takes the last stroke back. Ctrl/Cmd+Z does it from a keyboard.
file-menu.js:16Twenty-six grounds
Your camera, frosted or clear; 13 solid colours, 6 gradients, 5 that move — and grain over any colour.
file-menu.js:26A floating notepad
A note that rides over the canvas — six colours, dragged by its grip, resized from its corner.
notepad.js:162Panels, without touching
Point to aim, pinch to choose — the brush panel blooms from your hand and is operated bare-handed.
brush-panel.js:1221A full gesture lesson
Six guided steps with the app's own demos, checked live against your camera — a skip appears after 30 s of struggle.
gesture-guide.js:322Measured on your hand
One open hand for two seconds, one pinch for one — every threshold is placed inside your own measured gap.
calibration.js:90Built steady
A pinch latch bridges the frames a slow camera drops; tracking holds with the wrist off-frame.
pinch-latch.js · pinch.js:63Air writing
Words written in the air — for teaching, streams and rooms.
/air-writing/Landscape & portrait
A wide canvas for desks and demos; a tall one for phones and reels.
app.htmlCapture
Full-resolution PNG stills; MP4 or WebM video, up to an hour.
recorder.js:242 · recorder.js:17Timelapse replay
The whole session, replayed at 2×, 3× or 5× — the format process videos are made of.
modal.js:9Keep it on your device
One tap installs it from the browser — no store, no admin password.
manifest.webmanifestWhat it does not do
No layers · no pressure · no offline · exports carry a small corner mark.
the honest halfThe full spec · every claim read from the code
Every feature,performed.
This is a live AirVA session. Scroll, and the session plays — scroll back and it runs in reverse. Twenty features, every one implemented in the file it cites.
The full spec · 25 elements · 5 families · every one traced to its source
The periodic table
of AirVA.
Everything above, plus what a performance cannot show. Hover an element — or find the one we don't ship.
Ink · 8Space · 5Hand · 4Capture · 3Platform · 5
Ink8
Highlighter
brush-panel.js:108Marker at reduced opacity is a true highlighter; opacity is pinched along a bar
Colour
drawing.js:12 · brush-panel.js:109Six 8-colour palettes; full HSV wheel stores any hex
Stroke quality
pinch.js:27 · pinch-latch.jsSpeed-adaptive smoothing; pinch latch bridges dropped frames on ~7fps devices
Shape snap
shape-fit.js:398Eight families — line, arc, circle, ellipse, triangle, rectangle, polygon, polyline
Sculpt
sculpt.js:68Two modes: rope keeps length and drags like cord; rubber stretches
Eraser
main.js:3658Sizes itself from your pinch width, against your own calibration
Undo
file-menu.js:16Session menu by gesture; Ctrl/Cmd+Z by keyboard
Space5
Canvas
viewport.jsInfinite world coordinates; the screen is a viewport
Backgrounds
file-menu.js:2626 grounds — camera or frosted camera, 13 solid colours, 6 gradients, 5 animated — plus a grain texture
Panels
brush-panel.js:1221 · pinch-latch.jsBrush rack, palettes and menus are spatial panels operated bare-handed — point to aim, pinch to choose
Notepad
notepad.js:162Floating overlay, dragged and resized by gesture
Modes
app.htmlLandscape and portrait sessions
Hand4
Lessons
gesture-guide.js:322Six guided steps with picture-in-picture demos; a skip appears after 30s of struggle
Calibration
calibration.js:90One open hand + one pinch; thresholds placed inside your measured gap
Edge stability
pinch.js:63Wrist-extrapolation was built, proven unnecessary live, and deleted — stability stayed
Air writing
/air-writing/Words in the air for lessons and streams — the teaching guide →
Your hand
not in the codeThe only element we do not ship — and the one AirVA reads. Bring it: open the canvas.
Capture3
Stills
recorder.js:242PNG at full canvas resolution, lossless
Video
modal.js:159 · recorder.js:17MP4 where the browser remuxes, WebM otherwise; recordings to one hour
Timelapse
modal.js:92× · 3× · 5×
Platform5
Shortcuts
app.htmlCtrl/Cmd+Z · E · [ ] · F · Esc
Install
manifest.webmanifestOne tap from the browser; no store, no admin rights — how, for every device →
Privacy
mediapipe.jsHand tracking runs on-device; the camera feed is never uploaded
Price
verified: no billing code existsFree — no account, no trial, no paywall
Support
—support@getairva.com — a human answers, usually within the day
Not on the tablewhat AirVA does not do — said plainly
Layers
undiscoveredNo layer stack — one canvas; strokes are vector data you can grab and bend.
Pressure
undiscoveredNo pressure sensitivity — nothing touches anything; width follows hand speed.
Offline
undiscoveredNo offline mode — it loads like a web page; a fresh start needs a connection.
Exports carry a small getairva.com corner mark — image and video alike.