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Built a free browser tool to diff two 3D models voxel-by-voxel

I built Meshdiff because clients keep sending me part_v3_FINAL.stl and I have no quick way to see what changed.

Free tool. Drop two STL/3MF/OBJ files → see the voxel diff in your browser. Green = added, red = removed. Adjustable tolerance. Volume metrics.

Live: meshdiff.com

Privacy first: zero upload to any server. Everything runs client-side.

Currently building: project workspaces, comment pins on 3D models, print traceability.

If you work with 3D prints, try breaking it with your weirdest files — real-world STLs are chaos and I need the stress test.

on August 1, 2026
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    The diff itself solves a very specific problem, but the things you’re building next — workspaces, comments, traceability — move toward a much broader workflow.

    Did those come from people using Meshdiff and asking what happens after they find a change, or are they still bets on where you think the product should go?

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      thanks for your comment. I was able to identify potential niche and now I am testing the ground.

      Few days of launch and 16 people still leave their email in order to get notified when the product is out.

      To answer you question, I will need to send emails to each register person and see the reason of their pain point.

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        That makes sense. I’d be interested in picking this up once you start hearing back from those early users.

        What’s the best email to reach you on?