MAC MULTI-MONITOR GUIDE
LittleBigMouse for Mac: choose a fix for your monitor setup.
If you used LittleBigMouse to move between different-DPI displays, start by identifying what feels wrong on your Mac: a blocked edge, an unexpected crossing position, or switching between separate computers. Each needs a different approach.
Is there a LittleBigMouse version for macOS?
As of September 11, 2026, the official LittleBigMouse project lists Windows support and an experimental Linux port, but no macOS release. Its features include DPI-aware crossing (cursor movement tied to each display’s physical size), display size adjustments and border resistance (a pause at screen edges). DisplaySpan is an independent Mac app, not an official port.
Choose by the problem you want to solve
| Option | When to consider it | What to check |
|---|---|---|
| macOS display arrangement | The pointer exits on the wrong side because your screens are arranged incorrectly. | Try System Settings → Displays → Arrange first. Different screen heights can still leave blocked edges. |
| DisplaySpan | Unreachable edges on one Mac, with optional saved system positions and supported monitor brightness control. | Repairs blocked crossings automatically or through a custom cursor layout. It does not calibrate cursor landing points by the physical size of each display or share input between computers. |
| Cursr | Custom border links on one computer, or sharing a mouse, keyboard and clipboard across computers. | Its free tier includes same-device border links; resizable link segments are Pro. It offers both subscription and one-time Pro options. |
This is a comparison of documented features, not a performance ranking. Check the linked official pages for current availability and licensing.
Blocked edges and cursor alignment are different
If the pointer stops at the top or bottom of a screen edge, part of that edge may have no neighbor in the macOS layout. DisplaySpan can connect those unreachable sections. If the pointer already crosses but lands at a different physical position, look at alignment between the monitors, not a blocked edge. DisplaySpan keeps normal macOS crossings intact and does not automatically correct cursor landing points by monitor size.
For example, a large monitor beside a MacBook may have a much taller edge in macOS. Making that edge passable is different from making every crossing line up physically. Follow the cursor troubleshooting guide to tell them apart.
Try DisplaySpan with your own screens
- Arrange the displays in macOS, then start DisplaySpan’s 3-day trial.
- Enable cursor crossing and try moving and dragging through the blocked parts of the edge.
- To choose a connection, drag the screen thumbnails together in the cursor layout. This saves the cursor layout without moving the actual system display positions.
- Check the top, middle and bottom of each edge in both directions. Disable automatic handling of unconnected edges if you want those edges to remain blocked.
See the illustrated product demo, then test with your actual hardware. DisplaySpan requires macOS 14 or later. Cursor crossing does not require Input Monitoring permission.
Need brightness controls or saved screen positions too?
DisplaySpan also offers saved display position restoration and brightness controls for supported monitors. The trial includes all three features. After the trial, a paid license is required; this is not a permanently free replacement for LittleBigMouse.