Convert STEP, STP and IGES CAD files to STL for 3D printing, on your phone.
STEP to STL turns STEP, STP and IGES CAD files into STL files you can 3D print, right on your Android phone. Select the file, check the preview, tap Convert, and send the STL to your slicer. No computer, no upload, no account.
CONVERT STEP TO STL IN ONE TAP
• Converts .step, .stp, .iges and .igs files to STL
• Real CAD geometry, read by the OpenCascade engine on your own device
• The STL is saved straight into your Downloads folder
• Share it to a slicer app, email, WhatsApp or Drive
• Millimetres and Z up, the way every slicer expects
CHOOSE THE QUALITY
• Draft, Normal or Fine: smoother curves or a smaller file, your call
• See the size and triangle count before you convert
• Binary STL by default, ASCII STL when a tool asks for it
CHECK IT BEFORE YOU CONVERT
• See the model in 3D with every part in its own colour, and rotate it with your fingers
• Exact width, depth and height in millimetres, so you know the units came across right
• Want more? Open the STL in our free STL Viewer AR to see it at true size in your room, check it fits your printer bed and estimate filament cost
GOOD FOR
Makers who downloaded a STEP file from a parts site and need an STL. Engineers sending a part to a 3D printing service. Students printing a CAD project. Anyone whose slicer will not open a .step file.
PRIVATE AND OFFLINE
Your CAD files never leave your phone. The conversion runs entirely on your device, and nothing is uploaded anywhere.
FREE WITH ADS
Every conversion is free, at every quality. A one time Remove Ads purchase takes away the ads.
What's new
New: View in AR. See your part at its real size on your desk or floor before you print it.
Live size in cm, m, inches or feet while you pinch.
Light, warmth, light direction and shadow controls.
Take AR photos straight to your gallery.