Illustration of a Benchy 3D model and STL to 3MF file preparation tools

PrintNext tools

STL to 3MF Converter

Upload an STL, preview your model, and download a 3MF for your slicer. Standalone conversion runs in your browser with no account required.

Continue with PrintNext

Choose your next step

These tools open in a new tab so your converter stays open. Files are not transferred automatically.

Add color in Color Studio (opens in a new tab)

Upload your original STL to plan colors before your next 3MF export.

Estimate your print cost (opens in a new tab)

Use slicer time and material estimates to plan the cost before printing.

Check your filament (opens in a new tab)

Review available materials, colors, and remaining spool amounts.