Free browser tools
Free 3D print tools. Know before you print.
Focused 3D print checks with evidence you can act on. Every tool runs on your device. There is no account, file upload, or opaque score.
Available now
Small, purposeful tools for decisions that matter before slicing.
Color & structure
3MF Color Inspector
Inspect a 3MF's objects, colors, materials, textures, transforms, and reference integrity privately in your browser. Generate a standards compliant reference file and compare a color round trip to see what an application preserved, changed, or lost.
Accepts 3MFGenerates Reference 3MFRuns locally · No uploadOpen the 3MF Color InspectorMesh & topology
STL Error Checker
Check an STL for boundary edges, non-manifold edges, orientation problems, degenerate and duplicate faces, and separate shells privately in your browser. Confirmed topology errors and review-only risks are always kept apart, with an interactive overlay and a copyable local report.
Accepts STLGenerates Local reportRuns locally · No uploadOpen the STL Error Checker