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MarkerOn
Draw and annotate anywhere on your desktop
MarkerOn is a lightweight, open-source screen annotation tool for Windows and macOS. Press a global hotkey to draw over any app with a pen, highlighter, arrows, shapes, lines, text, and more. It runs quietly from the system tray, supports full keyboard control, undo/redo, quick screen copying, customizable colors and strokes, and optional drawing persistence between sessions. Built with Tauri, Vue, TypeScript, and Rust.
Hi Product Hunt! I built MarkerOn because screen annotation tools often felt too heavy or required interrupting the flow to open a separate app. I wanted something instant: press one hotkey, draw directly over any window, then get out of the way.
MarkerOn is open source and available for Windows and macOS. It includes eight annotation tools, keyboard-first controls, undo/redo, quick screen copying, and optional drawing persistence. I would love to hear how you use on-screen annotation and which feature would make MarkerOn more useful for you.
About MarkerOn on Product Hunt
“Draw and annotate anywhere on your desktop”
MarkerOn was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #6 on the daily leaderboard. MarkerOn is a lightweight, open-source screen annotation tool for Windows and macOS. Press a global hotkey to draw over any app with a pen, highlighter, arrows, shapes, lines, text, and more. It runs quietly from the system tray, supports full keyboard control, undo/redo, quick screen copying, customizable colors and strokes, and optional drawing persistence between sessions. Built with Tauri, Vue, TypeScript, and Rust.
On the analytics side, MarkerOn competes within Productivity, Open Source, Developer Tools and GitHub — topics that collectively have 1.3M followers on Product Hunt. The dashboard above tracks how MarkerOn performed against the three products that launched closest to it on the same day.
Who hunted MarkerOn?
MarkerOn was hunted by ifer47. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of MarkerOn including community comment highlights and product details, visit the product overview.
ifer47