I often need to browse folders full of STLs, and I was dissatisfied with the performance of most programs. So I wrote one myself where you can quickly skip to the next file with right arrow key.

If you’re a 64-bit Windows user, you can download it at http://papas-best.com/stlviewer_en

I hope it’s as useful to you as it is to me. If not, drop me a note and I’ll try to fix things!

Happy printing!


Thanks for sharing!

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First update: Some users requested a color change (too little contrast in gray), so you can now customize it via View -> Select Default Material. Others felt the mouse wheel zoom was inverted (a common source of disagreement), so you can customize this as well: View -> Flip Zoom. Thank you for testing so far! There’s more to come!

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Is there shell integration so you can see .stl thumbnails in Windows Explorer/file manager instances?

I actually do have that, but it was done for my company, so I have to ask my bosses first …

Second update: https://papas-best.com/stlviewer_en This greatly improves rendering quality on high-DPI displays. It also fixes a few UI glitches. I’ve listened to the complaints about the installer (no feedback, is it hung or has it crashed?) and so it comes with a proper setup dialog now :slight_smile:

You asked for thumbnails, and here they are now!


Feedback is always welcome :slight_smile: