Soft Edge – free extension to round or chamfer edges with one true radius (SketchUp 2021–2026)

Hi all,

I’ve released Soft Edge, a free extension for rounding or chamfering edges in SketchUp. I built it because the Follow Me fillet kept failing on the jobs I actually do: inner corners, three edges meeting at a corner, concave solids.

What it does

  • Select a group/component, some faces, or just one, two or three edges inside a group
  • Type one radius in model units and click Round
  • Every edge gets the same true radius; corners close cleanly (three edges → sphere corner, two → mitre, one → flat cap)
  • Round or Chamfer profile, three quality levels (Fast / Balanced / Smooth)
  • The original solid is kept with the group, so you can change the radius later or restore the sharp version
  • The panel shows the suggested radius and the largest one your part can take
  • SketchUp 2021–2026, English and Turkish UI

Short video: https://www.youtube.com/watch?v=X7AJHm59gMc

Download and details: Round Corners in SketchUp: Soft Edge, a Free Plugin

Feedback and bug reports are very welcome – I’ll answer here.

@ufuksn79
This is an very interesting extension.
However I cannot press the round edges button.
I am using Sketchup 2026 latest version.

Please help. Thanks