Share just a slice of your screen
Viewport mirrors any region of your Mac to a real virtual display — so you can share exactly what matters in Zoom, Meet, or Teams, and nothing else.
Free · Signed & notarized · macOS Tahoe 26 or later
Everything on screen, only what you mean to share
Ultrawide and multi-monitor setups make great workspaces and messy screen shares. Viewport fixes the share.
Pick any region
Draw a custom rectangle or choose a preset — 1920×1080, 1680×1050, 1440×900, or 1280×720.
A real virtual display
Viewport creates a genuine virtual screen, so Zoom, Meet, and Teams list it like any other monitor.
60fps, zero-copy
Frames travel straight from capture to screen via IOSurface — smooth and light on the CPU.
Built for big screens
Made for ultrawide, 5K, 6K, and multi-monitor setups where you only want to share a slice.
Lives in the menu bar
No dock clutter, no windows to manage. Start and stop mirroring from one tidy menu.
Updates itself
Signed, notarized, and kept current automatically via Sparkle. Or check for updates anytime.
Draw the exact area you want to share
Pull up a full-screen selector and drag out any rectangle, or snap to a preset resolution. Resize and reposition it live from the outline handles while you mirror.
Apps treat it like a monitor
Because Viewport publishes a true virtual display, meeting apps see “Viewport Mirror” in their screen picker — no window-share workarounds, no full-desktop overshare.
Mirroring in three steps
Pick a region
Draw a custom area or choose a preset resolution from the menu bar.
Share the display
In Zoom, Meet, or Teams, choose “Viewport Mirror” from the screen picker.
Work normally
Drag the outline to re-aim anytime. Stop mirroring when you're done.
Share smarter today
Free, signed, and notarized. It opens without a Gatekeeper warning and updates itself.
↓ Download for macOS