Use this free tool to view your 3D STEP (STEP-File) files online without needing to install any software. Our STEP viewer tool will generate a real-time 3D preview of your STEP file with Pan and Zoom controls allowing you to see your 3D model from any angle.
Our STEP viewing tool can load most STEP files and we are working on improvements all the time to improve compatibility with all file formats. If you are looking to convert your 2D image files to 3D files such as STL then we have a 2D to 3D conversion tool here.
Here are 2 simple steps to display your STEP file in any web browser.
First click the "Upload..." button, select your STEP file to upload. Select any configuration options. When the STEP to STL conversion has completed, you can download your STL file straight away.
We aim to process all STEP to STL conversions as quickly as possible, this usually takes around 5 seconds but can be more for larger more complex files so please be patient.
We aim to create the most accurate conversions with our tools. Our tools are under constant development with new features and improvements being added every week.
Yes, of course! We do not store the STEP file you submit to us. The resulting STL file, once created is deleted 15 minutes after upload and the download link will expire after this time.
Yes! Our STEP to STL tool will run on any system with a modern web browser. No specialist software is needed to run any of our conversion tools.
Yes. Although you can use an Ad Blocker, if you like our STEP conversion tool please consider white-listing our site. When an Ad Blocker is enabled there are some conversion limits on some of our tools and processing/conversion times will be longer.
| Extension | STEP |
| Full Name | STEP-File |
| Type | 3D Model |
| Mime Type | application/octet-stream |
| Format | Binary |
| Open With | CAD Assistant |
The STEP file format is a 3D format defined in 1994 and used to store 3D objects for use in Computer-aided design (CAD) applications. STEP files are text-based formatted files containing one instance per line.
Although STEP files are widely supported by most CAD applications the format does have its limitations, such as the necessity to read the complete file into memory in order to parse the contents and due to the text storage of information the files can be quite large.
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