Features
Tagsor stays invisible until you move, click, type or annotate — then it makes sure everyone watching knows exactly what is happening.
A floating pill glides beside your cursor at ~120 Hz and flips automatically so it never clips off the edge of your monitor. It reacts to what you do: it tilts with speed, pops on double-click, shows a badge while a button is held, bounces on scroll and surges when you shake the mouse to find it.
Open the floating sidebar with Ctrl + Alt + D to pick a pen or highlighter, a stroke width and a colour. Strokes auto-fade after a moment, or pin them to keep them on screen. Pause for half a second and your scribble snaps into a crisp circle, ellipse, square, rectangle, triangle, five-point star, line, arrow or checkmark.
Perfect for walking an audience through a busy screen. The spotlight follows your cursor, fades in and out smoothly, and exits instantly with Esc.
Shortcuts are the thing viewers miss most. Tagsor renders modifier keys, arrows, Enter and Backspace as clean glyphs, groups combos like Ctrl + Shift + P, and counts rapid repeats so ‘Z Z Z’ becomes a tidy Z ×3.
Plugging two mice into one PC for pair programming or a teaching session? Each device keeps its own saved name and accent glow, so everyone watching knows whose cursor is whose.
Tagsor checks the focused control through Windows UI Automation and drops keystrokes from password fields before they are ever rendered. Privacy Mode is one shortcut away when you are about to type something sensitive in a regular field.
Press Ctrl + Alt + 1 / 2 / 3 to show 👀 Look here, ⏸ Hold on or ✅ Done for five seconds — a silent way to steer attention during a call or recording.
Tagsor follows your Windows theme, ships a custom rounded system-tray menu, scales correctly on Per-Monitor V2 high-DPI setups and starts quietly with Windows.
Under the hood
Tagsor is a real Windows application, not a browser overlay — so it works on top of any window, game or presentation.
Hardware-accelerated transparent overlays, Catmull-Rom spline rendering, a custom tray popup and animations.
Low-level Windows WM_INPUT device identification for multi-mouse tracking and global key capture.
Password-field detection, global hotkeys and Per-Monitor V2 high-DPI scaling.
Douglas–Peucker simplification, radial-error and peak counting decide whether you drew a circle, star, arrow or tick.
Free, open source and entirely local. Download the single executable and be presenting in under a minute.
