Free Online BMP to OBJ Converter

With our BMP to OBJ converter, you can effortlessly convert your BMP image file into a 3D heightmap model, which can then be loaded into your favourite 3D editing software. Our image to OBJ tool can batch convert up to 20 BMP files at one time and quickly turn them into 3D models.

Select File(s)

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

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

Our BMP to OBJ image conversion tool comes with a set of options allowing you to fine-tune the details of how the 3D model is generated. Once you have selected a file, you will see a button, which you can click to reveal adjustable properties such as whether the tool should use a Heightmap or Extrude algorithm to create the 3D model. There are also properties to control the size and detail of the model.

How to Convert your BMP to OBJ Online?

Here are two simple steps to convert your BMP to OBJ using our fast and free BMP converter tool.

Upload your BMP file

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

Download your OBJ

Click the download link to receive your OBJ file.

Frequently Asked Questions

How can I convert my BMP file to OBJ?

First, click the "Upload..." button and select your BMP file to upload. Your BMP file will be uploaded to our servers. When the BMP to OBJ conversion has completed, you can download your OBJ file right away.

How long does it take to convert my BMP to OBJ?

We aim to process all BMP to OBJ 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 BMP to OBJ conversion?

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

How is the 3D model generated from my BMP image?

Our tool uses a Heightmap process whereby the OBJ 3D model is created based on the luminosity of the individual pixels in your BMP image.

Is there a limit to the size of my image?

Yes, to ensure our tool converts the BMP image quickly and with a reasonable final file size, your tool will resize any image larger than 600x600 pixels.

File format information for BMP and OBJ

Extension	BMP
Full Name	Bitmap Image File
Type	Image
Mime Type	image/bmp
Format	Binary
Opens With	Paint.Net

BMP files are used to store bitmap images in a simple and uncompressed manner. Introduced by Microsoft in the 1980s as a standard image format for use with their Windows operating system, the format has evolved over the years and is still relevant today.

Due to the uncompressed nature of BMP files, they can quickly grow in size when using high resolutions. Modern formats such as PNG and JPEG can be used as an alternative when dealing with larger images or images where transparency is a requirement (PNG only).

The BMP format supports different pixel colour depths, allowing creators to minimise file sizes if their content has a lower colour depth. Due to their age and popularity, BMP files can be opened in most modern image editing applications without requiring conversion tools.

Extension	OBJ
Full Name	Wavefront
Type	3D Model
Mime Type	text/plain
Format	Text
Opens With	MeshLab, CAD Assistant, DAZ Studio

The OBJ file format is a 3D graphics file format used to define complex 3D models, including geometry, materials, and textures. OBJ files are text files, making them human-readable and easy to modify by hand. The downside to this ease of readability is that the files can become rather large when dealing with large or complex 3D models.

As mentioned, the OBJ format stores not only 3D model geometry but also materials and textures. These materials are usually defined in a separate file with the MTL file extension and specify geometry rendering details such as diffuse and specular colour, transparency, and much more.

The OBJ material file can also reference external texture files. These are usually JPEG or PNG files; however, these can be older formats, such as TGA. Where materials are used, the OBJ file will also contain material names preceding the geometry faces they should be applied to. If textures are referenced, the geometry will also contain texture coordinates (UV) for each vertex.

Information for converting from BMP to OBJ

Our BMP converter will convert your BMP file to a 3D model using the Heightmap process, whereby 2D pixels, based on their luminosity, are converted into 3D space to create a full 3D OBJ model ready for download for further processing in your favourite 3D editing package or for printing on a 3D printer.