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Convert your PNG file to OFF

Use our free and fast online tool to convert your PNG (Portable Network Graphics) image or logo into 3D OFF (Object File Format) mesh/model files suitable for printing with a 3D printer or for loading into your favorite 3D editing package.

How to Convert your PNG to OFF Online?

Here are three simple steps to create an OFF file from a PNG file.

Upload a PNG

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

Select your Options

Set the dimensions and other options, and click the "Convert to OFF" button to convert your PNG to OFF.

Download your OFF

Click the download link once completed to receive your OFF file.

Image to OFF Frequently Asked Questions

What does this tool do?

Our tool converts image (bitmap) data into 3D geometry, which is then saved to the common OFF file format.

What files does it support?

The PNG to OFF tool can convert the most common image file formats, such as PNG, JPG or any one of our supported image formats. The output is provided in OFF format, which can be used in most 3D graphics applications.

How does the tool interpret the image pixel data?

3D geometry is created based on the luminosity of each pixel in the source image. For example, using the default tool settings, a black pixel represents a 3D pixel height of 0mm, and a white pixel represents a 3D pixel height of 10mm. Colors in between these will be converted to a 3D pixel in this range.

What does the "Invert Output" option do?

This option reverses the black-to-white range conversion, so with this option set, a black pixel will be rendered as a 3D pixel of 10mm in height, and a white pixel will be rendered as 0mm.

How do I control the Model detail?

The "Detail" option allows you to control the resolution of the created OFF file. Low detail will generate the model quickly and result in a smaller file. The High option will take longer to generate and can result in very large download files.

What does the "Enable Smoothing" option do?

With this option, the PNG to OFF converter will attempt to remove or smooth out any spikes in the resulting OFF 3D model. Spikes are usually caused by highly contrasting adjacent pixels in the source PNG file.

What is the maximum PNG resolution I can upload?

The PNG you upload can be any size; however, our tool will resize your image to a maximum of 800x800 pixels for normal users, and for premium subscription holders, this is increased to a maximum of 1200x1200 pixels.

Other Frequently Asked Questions

How can I convert my PNG file to OFF?

First click the "Upload..." button, select your PNG file to upload. Select any configuration options. When the PNG to OFF conversion has completed, you can download your OFF file straight away.

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

We aim to process all PNG to OFF conversions as quickly as possible, this usually takes around 5 seconds but can be more for larger more complex files so please be patient.

How accurate is the PNG to OFF conversion?

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.

Is it safe to convert my PNG to OFF on ImageToStl.com?

Yes, of course! We do not store the PNG file you submit to us. The resulting OFF file, once created is deleted 15 minutes after upload and the download link will expire after this time.

Can I convert my PNG to OFF on Windows, Linux, Android, iOS or Mac OS?

Yes! Our PNG to OFF tool will run on any system with a modern web browser. No specialist software is needed to run any of our conversion tools.

What if I am using an Ad Blocker, will that affect things?

Yes. Although you can use an Ad Blocker, if you like our PNG 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.

Comparing PNG and OFF Features

 

PNG Features

  • Supports Lossy Compression
  • Supports Non Lossy Compression
  • Supports Transparency
  • Supports Color Palettes
  • Supports Monochrome (1-Bit)
  • Supports 16 Colors (4-Bit)
  • Supports 256 Colors (8-Bit)
  • Supports 16 Million Colors (24-Bit)

OFF Features

  • 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

File Format Information for PNG to OFF

ExtensionPNG
Full NamePortable Network Graphics
TypeImage
Mime Typeimage/png
FormatBinary
ToolsPNG Converters, Create Cookie Cutter, PNG Viewer
Open WithPaint.NET, Photoshop

Description

The PNG graphics file format is a commonly used format for storing 2D images, which can be highly compressed by the use of a palette if the image has a sufficiently low number of colors (256 colors in general). The PNG file is then further compressed using the DEFLATE compression algorithm to ensure small file sizes that are fast to download.

PNG files are seen as the logical successor to the GIF image file format and was devised in the mid-1990s as a superior format to GIF. PNG files are generally used for company logos, icons, and other non-photographic image content. Saving a digital photo in the PNG format will create a much larger file than an equivalent JPG image, hence the PNG format being unsuitable for most digital photo content.

ExtensionOFF
Full NameObject File Format
Type3D Model
Mime Typetext/plain
FormatText
ToolsOFF Converters, 3D Model Voxelizer, Create OFF Animation, Compress OFF, Text to OFF, OFF Viewer
Open WithMeshLab, CAD Assistant

Description

The OFF file format is a simple text-based format capable of storing 2D and 3D geometry and was originally developed for the Geomview application. There is also an extension to the OFF format used by the Stella4D application to enable the storage of four-dimensional data.

The format can contain common vector information such as vertices, faces, shapes, and edge information, and it also has support for including color information. As the format is text-based, the files can become rather large, with no built-in compression options available.

OFF Notes

OFF files support per-face color information. If your uploaded model contains color information, our tool will attempt to save this in the OFF file at the end of the conversion process.

Supported Features

  • Mesh geometry
  • Face colors

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