Annotate Anything
on Your Screen
Draw on top of any application with professional, pressure-sensitive ink brushes, a laser pointer, and animated particle effects. Supports Wacom tablets and Apple Pencil via Sidecar. Mark up presentations, highlight code, point at things with a fading laser trail, add fire and smoke effects — with full undo/redo, drawing constraints, and a UI available in 9 languages. Free, lightweight, no account required.
Free forever · No account needed · Apple Silicon · macOS 14+
See It in Action
Watch a quick demo of T-Annotate drawing on top of a live screen.
Professional Brushes & Effects
Seven brushes ranging from precise ink pens to a laser pointer and animated particle effects. Powered by the same ink engine used in T-Sketch, rendered natively with Metal.
Pressure Pen
Responds to stylus pressure, direction, and acceleration for expressive strokes. End taper creates natural-looking line terminations.
Pen
A clean, fixed-width round brush for precise annotations. Smooth strokes with prediction-based fade-out for natural endpoints.
Spray
Soft airspray particles with gradual color buildup. Draw over the same area to fill it in — each pass adds more color, just like a real spray can.
Highlighter
A chisel-tip brush with translucent colors, ideal for marking up documents or emphasizing areas on screen.
Laser Pointer
A pressure-sensitive trail that fades away after 1.5 seconds. Perfect for pointing at things during presentations and code reviews without leaving permanent marks.
Fire
Animated flame particles rise and flicker along your stroke path. Additive blending creates a glowing, luminous fire effect that responds to pen pressure.
Smoke
Soft, billowing smoke wisps drift upward from your stroke. Particles start large and slowly fade from your chosen color to gray, creating an atmospheric haze effect.
How It Works
Three steps to annotate anything on your screen.
Launch
T-Annotate lives in your menu bar. Click the icon or press Ctrl+P to start annotating.
Draw
Pick a brush from the floating toolbar and draw on top of whatever is on your screen. Adjust size and opacity on the fly, undo mistakes, and use drawing constraints.
Share
Take a screenshot of your annotated screen using the standard macOS screenshot tools (Cmd+Shift+3/4).
Built for macOS
A native app that feels right at home on your Mac.
Draw on Any Screen
Transparent overlay windows cover every connected display. Annotate presentations, code reviews, documents, or any app.
Pressure-Sensitive Tablets
Full support for Wacom tablets and Sidecar with Apple Pencil. Pressure, tilt, and direction are captured for natural, expressive strokes.
Live Cursor Preview
The cursor shows a real-time preview of your brush — its color, size, and opacity — so you always know exactly what you'll draw.
Full Color Control
6 customizable colors with a 40-color palette and hex input. Per-brush size and opacity settings are remembered and persist between sessions.
Undo & Redo Everything
Full undo/redo history for strokes and clear-screen actions. Hold Shift or D while drawing to constrain lines to horizontal, vertical, or 45° angles.
Keyboard Shortcuts
Q/W/E/R/T/Y/U to select brushes, 1-6 for colors, arrow keys for size and opacity, Delete to clear. Customizable global hotkey to toggle annotation mode from anywhere.
Multi-Display Support
Works across all connected displays. Annotation overlays appear on every screen, so you can draw wherever you need to.
9 Languages
Full UI localization in English, Spanish, German, French, Portuguese, Japanese, Chinese, Korean, and Russian. Auto-detects your system language.
Native macOS App
Built with Metal rendering and SwiftUI. Uses the same ink engine as T-Sketch, compiled natively for Apple Silicon.
Ready to annotate?
Download T-Annotate and start drawing on your screen in seconds. Completely free, available in 9 languages — no sign-up, no trial, no catch.
Requires macOS 14 (Sonoma) or later