Convert image files with our easy-to-use and free tool. Our tool lets you upload a DDS (DirectDraw Surface) file and, from this, create a new image saved in the QOI (Quite OK Image Format) format that you can then download and edit within image file editors or use for high-definition printing applications. Our conversion tool can also batch convert multiple DDS image files; up to 25 files at a time can be converted.
Along with converting DDS image files to QOI, our tool allows you to also adjust the image with some simple effects, such as applying a grayscale filter to the image. These additional options are available within the Options tab. Along with grayscale, you can also mirror or flip the image if needed. For single DDS file uploads, you will also see options to resize and rotate your image.
This option can be used to rotate the image in 90° increments.
When selected, this option will flip the image vertically.
When selected, this option will mirror the image horizontally.
When checked, this will apply a grayscale filter to the image, turning any color image into a grayscale image.
When checked, this will apply a negative filter to the image, inverting all the colors within the image.
| Extension | DDS |
| Full Name | DirectDraw Surface |
| Type | Image |
| Mime Type | image/vnd-ms.dds |
| Format | Binary |
| Tools | DDS Converters, Create Cookie Cutter, DDS Viewer |
| Open With | Paint.NET |
The DDS file format was introduced by Microsoft in 1999 and intended to be its standard image format for the DirectX 7 3D graphics API. The format is used to store textures for use within 3D graphics and game environments and can be compressed or uncompressed.
The compression algorithm used by DDS was the previously proprietary S3 texture compression, which could reduce the image file size and was easy for the GPU to decompress in real-time. The format is still used, and there are some third-party image editors that are compatible with it.
| Extension | QOI |
| Full Name | Quite OK Image Format |
| Type | Image |
| Mime Type | image/qoi |
| Format | Binary |
| Tools | QOI Converters, Create Cookie Cutter, QOI Viewer |
The QOI file format is a modern image format capable of storing full color (32-bit) images in a compact format, with file sizes of QOI files similar to those of a PNG file.
QOI files are designed first and foremost with encoding and decoding speed in mind. It is many times faster to encode or decode an image into the QOI format than other formats, such as PNG.
First click the "Upload..." button, select your DDS file to upload. Select any configuration options. When the DDS to QOI conversion has completed, you can download your QOI file straight away.
We aim to process all DDS to QOI conversions as quickly as possible, this usually takes around 5 seconds but can be more for larger more complex files so please be patient.
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.
Yes, of course! We do not store the DDS file you submit to us. The resulting QOI file, once created is deleted 15 minutes after upload and the download link will expire after this time.
Yes! Our DDS to QOI tool will run on any system with a modern web browser. No specialist software is needed to run any of our conversion tools.
Yes. Although you can use an Ad Blocker, if you like our DDS 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.
Yes. When you have converted your DDS to QOI, there is a "Feedback" option that you can use to let us know of any issues you encountered when converting your file.
Yes! Our DDS tool supports full batch conversions. You can upload up to 25 and DDS files at a time. Our tool will convert them all as quickly as possible. Once completed, you can either download the QOI files individually or download them all in a single ZIP file.
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