Free Online STP to STEP Converter

Or drag and drop your files here to upload.
A maximum of 20 files can be uploaded at once.

Please note: Your STP file, once uploaded to our server will be deleted 15 minutes after upload so please download your converted STP file before this time.

How to Convert your STP to STEP Online?

Here are 2 simple steps to convert your STP to STEP using our fast and free STP converter tool.

Upload your STP file

Click the "Upload a STP File" button, then select a STP to upload. The maximum file size is 100MB.

Download your STEP

Click the download link to receive your STEP file.

File format information for STP and STEP

ExtensionSTP
Full NameSTEP-File
Type3D Model
Mime Typeapplication/octet-stream
FormatBinary
Opens WithCAD Assistant

STP files are a 3D file format used to store complex 3D object definitions in a standard format to facilitate data transfer between compatible 3D modelling and CAD (Computer Aided Design) applications. In addition to storing 3D object data, the STP format can store additional information such as materials, tolerances, and other relevant data.

The STP format was first released in the early 1990's, has become a standard for 3D object storage, and is used in automotive, electronics, and other industries. STP files can be opened in most modern CAD applications and can be imported into many 3D modelling applications too.

The file content is ASCII text-based and conforms to the ISO-10303-21 standard. The 3D object contained within the STP file is described using a combination of points, lines, and edges. Due to the format being ASCII text, complex objects can lead to large file sizes. In addition to large file sizes, some complex STP files can take a long time to open within editing applications, even on a high-spec, modern computer.

STP Converter Capabilities

Our STP 3D Model/Mesh tool does not support any color material data contained within STP files so the converted file will not contain any color information.

ExtensionSTEP
Full NameSTEP-File
Type3D Model
Mime Typeapplication/octet-stream
FormatBinary
Opens WithCAD Assistant

STEP files are a 3D file format used to store complex 3D object definitions in a standard format to facilitate data transfer between compatible 3D modelling and CAD (Computer Aided Design) applications. In addition to storing 3D object data, the STEP format can store additional information such as materials, tolerances, and other relevant data.

The STEP format was first released in the early 1990's, has become a standard for 3D object storage, and is used in automotive, electronics, and other industries. STEP files can be opened in most modern CAD applications and can be imported into many 3D modelling applications too.

The file content is ASCII text-based and conforms to the ISO-10303-21 standard. The 3D object contained within the STEP file is described using a combination of points, lines, and edges. Due to the format being ASCII text, complex objects can lead to large file sizes. In addition to large file sizes, some complex STEP files can take a long time to open within editing applications, even on a high-spec, modern computer.

Information for converting from STP to STEP

Your STP file will be converted to a STEP file using our unified 3D model and mesh conversion tool. Our STP 3D tool performs accurate conversions of 3D elements such as vertices, faces, normals and relevant material information. Our tool will not attempt to transfer any color information if present in your STP file, your final 3D model will contain geometry data only.

Frequently Asked Questions

How can I convert my STP file to STEP?

First click the "Upload..." button, select your STP file to upload. Your STP file will be uploaded to our servers. When the STP to STEP conversion has completed, you can download your STEP file straight away.

How long does it take to convert my STP to STEP?

We aim to process all STP to STEP conversions as quickly as possible, this usually takes around 5 seconds however this can be longer for certain files, so please be patient.

How accurate is the STP to STEP conversion?

We aim to provide the best conversion experience. Our tools are under constant review and development with new features being added every week.