STL to STEP Assistant
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Description
STL to STEP Assistant is a focused local 3D model tool for converting mesh-based models into STEP files for CAD workflows.
Open STL, STLB, GLB, 3MF, USDZ, OBJ, 3DM, FBX, DAE, PLY, 3DS, AMF, DRC, KMZ, MPD, WRL, and other model files, preview them in a clean 3D scene, choose a conversion quality mode, then export and save the current main model as a STEP file. You can also load and view STEP and STP files to inspect conversion results.
Built for mesh-to-STEP work
Convert STL, including binary STLB, to STEP
Convert OBJ, GLB, GLTF, 3MF, 3DM (Rhino), FBX, DAE, PLY, USDZ, 3DS, AMF (additive manufacturing), DRC (Draco), KMZ (zipped 3D scene), MPD (multi-part LDraw), and WRL (VRML) model formats to STEP
Load and view STEP files to inspect conversion results
Export STEP with BRep reconstruction, useful for turning some engineering mesh models into easier-to-edit CAD surfaces
Preview 3D models and BRep reconstruction results before export
Export the current main model, not the whole scene or other objects
Keep floor, lights, camera, and visual effects out of the STEP file
Process files on device, so model data stays on your device
Privacy focused, with no account, no login, no ads, no tracking, and no data collection
Choose STEP export geometry and quality as needed
BRep: tries to convert suitable mesh models into easier-to-edit CAD surfaces, useful for some engineering parts and regular geometry
Faceted Small: fast, lightweight STEP export for everyday use
Faceted Balanced: balance detail and file size
Faceted High: preserve more model detail
Faceted Original: export as directly from the source mesh as possible
Understand the result before saving
View source file information
Review mesh, triangle, and vertex counts
Check triangle reduction by quality mode
Get a simple export risk hint
See the final STEP file size after conversion
It is made for makers, engineers, designers, 3D printing users, CAD users, and anyone who needs to convert mesh models into STEP exchange files.
Pricing & Access
Free: Open, preview, inspect models, load STEP files, and use Small STEP export.
CAD Surface Export unlocks BRep STEP export for suitable models, helping produce easier-to-edit CAD surface results.
In-App Purchase unlocks: Permanently unlock CAD Surface Export, Balanced, High, Original, and other STEP export capabilities. No subscription required.
Payment is charged to your App Store account.
Purchases can be managed through your App Store account settings.
Privacy & Purchase Terms
Privacy Policy: https://h53d.github.io/s2s/policy.html
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Have questions or need support? Reach out to [email protected].