Convert STL to STEP — Free
Upload your STL file and get a STEP in seconds. No account, no watermark.
How to convert STL to STEP
Convert your STL files to STEP format quickly with BoltConverter. This free online tool helps engineers and designers transform mesh models into solid CAD files. STEP files are ideal for editing, manufacturing, and sharing in various CAD software.
BoltConverter processes your files securely on our servers. Your uploaded STL and converted STEP files are automatically deleted after conversion. Get accurate, high-quality STEP models without software installation.
Upload STL File
Click "Choose File" and select your STL file from your device.
Start Conversion
Press the "Convert" button to begin the STL to STEP conversion process.
Wait for Processing
BoltConverter will process your file on our secure servers.
Download STEP File
Once complete, click "Download" to save your new STEP file.
Frequently asked questions
Is BoltConverter's STL to STEP converter free to use?
Yes, BoltConverter offers a completely free online tool for converting STL files to STEP format.
How long does BoltConverter store my uploaded files?
Your uploaded STL files and converted STEP files are automatically deleted from our servers immediately after conversion. We do not store your data.
Is there a file size limit for STL to STEP conversions?
Yes, the current file size limit for converting STL to STEP on BoltConverter is 100 MB per file.
What is the quality of the converted STEP files?
BoltConverter aims to provide high-quality STEP conversions, preserving the geometry of your original STL model as accurately as possible.
Can I convert multiple STL files to STEP at once?
Currently, BoltConverter supports converting one STL file to STEP at a time. Please convert your files individually.