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View STEP Files Online for Free

Use our fast and free online STEP viewing tool to view your 3D STEP (CAD) files online without needing to sign up or install any specialist 3D viewing software. Our STEP viewer tool will generate a real-time color 3D preview of your STEP file with pan and zoom controls, allowing you to see your 3D model from any angle. If your STEP file is compressed, you can use our STPZ viewer.

Our STEP viewing tool can load most STEP files quickly (around 4x faster than other online or offline STEP viewers) and display them accurately with object colors, if present. You do not need to register or create an account to use our STEP viewing tool. We are working on improvements all the time to improve compatibility and enhance the rendering quality; feel free to submit your comments using our feedback form which is also available after uploading your STEP file.

Upload an STEP

Click the "Upload a File" button and select an STEP to upload. The maximum file size is 100MB.

View your STEP

Once processed, your STEP file will be displayed in the web browser.

File Format Information for STEP

ExtensionSTEP
Full NameSTEP-File
Type3D Model
Mime Typeapplication/octet-stream
FormatBinary
ToolsSTEP Converters, 3D Model Voxelizer, Create STEP Animation, Text to STEP, STEP Viewer
Open WithCAD Assistant

Description

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 textual storage of information, the files can be quite large.

  • Mesh Geometry (Vertices and Faces)
  • Vertex Normals
  • Face Normals
  • Vertex Colors
  • Face Materials (Excluding textures)
  • Textures
  • Point Cloud
  • Multiple Objects Per File
  • Object Transforms (Translation, Rotation, and Scale)
  • Bones/Joints
  • Animations
  • Suitable for 3D Printing

If my STEP file is compressed, can I still use it?

Yes. If your STEP file is compressed, our tool will detect this automatically and load the 3D model from the STEP file as normal.

How long does it take to view my STEP file?

Our STEP file viewer is up to 4x faster than other online or offline tools, so you can be sure your file will be rendered quickly. Larger files will typically take longer to render than small files, so please be patient.

How accurate is the STEP file viewer?

We aim to create the most accurate rendition of your STEP file with our tools. Our tools are under constant development with new features and improvements being added every week.

Is it safe to view my STEP file on ImageToStl.com?

Yes, of course! We do not store the STEP file you submit. The generated preview file within your browser is deleted after 15 minutes,

Can I view my STEP file on Windows, Linux, Android, iOS or Mac OS?

Yes! Our STEP file viewer will run on any system with a modern web browser. No specialist software is needed to use our file viewing tools.

How long does it take to convert my STEP to 3D Model?

Our STEP to 3D Model file converter is up to 4x faster than other online or offline file converters, meaning your files are converted quickly and hassle-free. Smaller files are typically converted instantly, while larger files will take longer to process.

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