How to open a .SKP file (Mac & Windows, free)
A .SKP file is a SketchUp 3D model. You have five main ways to open one — and one common blocker: SketchUp is not backwards compatible. Here's the practical guide.
1. SketchUp Free (web) — easiest
Go to app.sketchup.com, sign in with a Trimble ID and drop your .skp file. Free, no install. Limitation: the web version usually cannot open files saved in the two most recent desktop SketchUp releases.
2. SketchUp Viewer — free desktop
Trimble's SketchUp Viewer is free for Mac and Windows. It opens .skp files for viewing / measuring / walk-through, but you cannot edit or save changes.
3. SketchUp Make 2017 — free and offline
The last free desktop version of SketchUp. Great for editing, but can only open files saved in SketchUp 2017 or older. For newer files you must downgrade first.
4. SketchUp Pro / Studio — paid
The official way: buy or subscribe (~$399/year) to the latest SketchUp Pro. You can then File → Save As an older version if needed.
5. DownConvert — free 1st conversion, works on any file
Upload your .skp (any version 2017–2026), choose the target SketchUp version, download the converted file in seconds. Works on Mac, Windows, Linux, iPad — 100% browser-based.
"This file was created in a newer version of SketchUp" — how to fix it
- Ask the sender to re-export from File → Save As → SketchUp 2017.
- Or upload the file to DownConvert and pick your version. First file is free.