Drawing canvas
Slow diagonals and loops work best
Draw slow diagonal lines here
Keep drawing slow diagonals for a verdict.
Mouse Angle Snapping Test
This mouse angle snapping test highlights line straightening. Hold the left button and draw gentle diagonal lines and curves. Natural movement produces tiny diagonal steps; angle snapping converts them into runs of perfectly straight segments, drawn here in coral.
Snapping analysis
- Segments
- 0
- Axis-aligned
- 0 %
- Longest straight run
- 0
Test for angle snapping
1. Draw slowly
Snapping is most visible at low speed, where each report is only a pixel or two.
2. Draw diagonals, not lines
Shallow angles of 10 to 20 degrees trigger snapping most.
3. Look for coral runs
A few coral segments are normal. Long unbroken coral runs on a diagonal mean prediction is on.
What the canvas shows
Colour-coded segments
Indigo for natural movement, coral for perfectly axis-aligned reports.
Longest straight run
The key statistic: runs over 25 reports almost never happen without snapping.
Live percentage
Share of reports that were axis-aligned, updated as you draw.
Any surface
The test does not depend on DPI or sensitivity.
Snapping terms
- Angle snapping
- Firmware that straightens near-horizontal or near-vertical movement. Also called prediction or line correction.
- Prediction
- The older name for the same feature on early gaming sensors.
- Report
- One movement update from the mouse, with an X and Y delta.
- Axis-aligned
- A report where either the X or the Y delta is exactly zero.
Angle snapping questions
Is angle snapping bad?
For aiming, yes: it hides small diagonal corrections. For drawing straight lines it can help, which is why some mice let you toggle it.
My score is 30 percent. Is that snapping?
Probably not. Slow horizontal strokes are naturally axis-aligned. Check the longest run instead.
Can the OS cause this?
No. Snapping lives in mouse firmware or driver software.
Turn snapping off
Gaming mouse
Open the manufacturer software and disable angle snapping, prediction or line straightening.
Office mouse with snapping
Usually not configurable; choose a different mouse for precision work.
Trackpad looks snapped
Trackpads apply their own smoothing. The result is informational only.