Free Online STP to PNG 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 PNG Online?

Here are 2 simple steps to convert your STP to PNG 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 PNG

Click the download link to receive your PNG file.

File format information for STP and PNG

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.

ExtensionPNG
Full NamePortable Network Graphics
TypeImage
Mime Typeimage/png
FormatBinary
Opens WithPaint.Net, Photoshop

PNG files are a widely used graphics file format used in areas where high-quality images (often with transparency) are required while also retaining a small file size. They are one of the most common formats of file used for web and print mediums and are particularly useful for logos, icons, and other images where multi-level transparency is desired.

The format itself was created in the 1990's with the main aim of storing computer graphics in a high-quality format while minimising the required storage space. The longer-term aim was to displace the GIF file format and make PNG the number one format for non-lossy, high-quality image formats on the then-burgeoning world wide web.

One of the selling points of the PNG format is its support for multiple levels of transparency, making it superior to the GIF format, which can only handle a single level of transparency. Also, like GIFs, the PNG format supports palletizing image colors down to 256 or 16 colors to help reduce the file size of the PNG.

Information for converting from STP to PNG

Our tool will internally render your STP file and capture an image of the 3D render which will be saved to a PNG file using a high quality setting ready for you to download.

Frequently Asked Questions

How can I convert my STP file to PNG?

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

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

We aim to process all STP to PNG 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 PNG conversion?

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