RAW to DDS Converter
Convert RAW to DDS in your browser. The camera's embedded JPEG preview is what gets converted, not the sensor data; it matches what the camera showed on its screen. No raw development happens here. You get an uncompressed 32-bit RGBA DDS texture with a single mip level, or DXT1 or DXT5 block compression if you choose it. Nothing is uploaded.
- Processed locally
- No upload, no wait
- No sign-up
- No watermark
Drop images here
or choose files · paste with Ctrl/⌘ V
RAW expected · other image formats also work
How to use RAW to DDS
- 1
Add your RAW files: drop them here, choose them, or paste from the clipboard.
- 2
Choose the DDS compression: none for an exact 32-bit texture, DXT1 or DXT5 for smaller GPU-ready files.
- 3
Click Convert. Each file is decoded and encoded in a background thread on this device.
- 4
Download the .dds files one at a time or together as a ZIP.
Why use Aback Images for raw to dds
Where the DDS goes next
DDS opens in game engines, Visual Studio, Paint.NET, GIMP, NVIDIA and Intel texture tools.
DDS next to RAW
The DDS stores the camera preview's pixels uncompressed, so it can be as large as the 20 to 80 MB raw file, or larger, depending on the preview's resolution.
No new artefacts
The preview inside the RAW is a camera JPEG; the DDS stores its decoded pixels uncompressed, so this step adds no compression damage of its own.
Processed on your device
Your images are decoded, edited and encoded inside this browser tab by Web Workers. Nothing is uploaded to a server.
RAW vs DDS
What changes from RAW to DDS
Encoding: the RAW uses uncompressed, lossless JPEG or vendor-specific coding of the sensor data, depending on the maker; DDS uses block compression (BC1 to BC7, also called DXT) or uncompressed RGBA, and the download is an uncompressed 32-bit RGBA DDS texture with a single mip level, or DXT1 or DXT5 block compression if you choose it.
Bit depth: 12 to 16 bits per channel in the RAW; DDS allows 8 bits per channel for common texture formats, and the DDS written here has 8 bits per channel. The sensor's 12 to 16 bits are not used: the camera's 8-bit preview is converted.
Colour: camera-native RGB from a colour filter mosaic in the RAW; DDS supports RGB(A); normal maps and packed masks store data rather than colour, written here as 8-bit sRGB.
Metadata: the RAW can carry EXIF and vendor maker notes, almost always with an embedded JPEG preview; DDS can carry a 128-byte header (plus a DX10 header) describing the pixel format, nothing about the picture, but nothing is copied across.
About RAW
Camera RAW files (CR2, CR3, NEF, ARW, DNG, ORF, RW2, RAF and others) hold the unprocessed sensor data from a camera along with an embedded full-size JPEG preview rendered by the camera.
.RAW is an extension rather than one format. Panasonic and Leica compacts wrote TIFF-like .RAW files before Panasonic moved to RW2, and scanners and scientific cameras use .raw for headerless dumps with no width, height or layout recorded, which nothing can read without being told those values.
RAW files usually come from older Panasonic and Leica compacts that saved .RAW, and scanners or scientific cameras that use the extension for pixel dumps.
About DDS
DDS is a GPU texture format used by DirectX games. It stores block-compressed textures (DXT/BC) and mipmaps that graphics cards decode directly.
A DDS file starts with 'DDS ' and a 124-byte header giving the size, mipmap count and pixel format: a FourCC such as DXT1 or DXT5, or 'DX10' followed by an extra header naming a DXGI format. The largest mipmap comes first.
When converting RAW to DDS makes sense
DDS is the better choice for game textures and mods, while RAW suits editing in Lightroom, Capture One or darktable.
DDS strengths: Loads straight into GPU memory; Mipmaps included. Drawbacks to weigh: Not viewable outside game tools; Lossy block compression.
Limitations
- A headerless .raw pixel dump has no preview and no size information, so it cannot be converted here.
- The DDS has a single mip level, so generate mipmaps in your engine or texture tool if it needs them.
- Uncompressed DDS textures take 4 bytes per pixel; DXT1 is an eighth of that and DXT5 a quarter, at the cost of lossy 4×4 block compression.
More conversions
Related tools
Convert DDS to RAW in your browser, saved as a Linear DNG, the raw file every RAW editor also opens. Batch, private, no uploads.
Convert RAW to JPG in your browser, made from the full-size preview your camera camera stored in the file. Batch, private, no uploads.
Shrink JPG, PNG, WebP, AVIF and GIF files with MozJPEG, OxiPNG and modern codecs, with a live before/after preview.
Resize to exact pixels, a percentage or a longest side, with Lanczos3 and Magic Kernel resampling. Batch ready.
Strip EXIF, GPS, XMP, IPTC and comments losslessly. Pixels are never re-encoded for JPG, PNG and WebP.
Convert between 34 image formats in bulk: HEIC, WebP, AVIF, JPEG XL, PNG, JPG, GIF, TIFF, SVG, ICO, PSD, RAW and more.
Frequently asked questions
Does converting RAW to DDS lose quality?
DDS is written uncompressed, so the pixels are stored exactly as decoded. Those pixels come from the camera's JPEG preview, so its compression stays, but nothing new is lost. The sensor's 12 to 16 bits are not used: the camera's 8-bit preview is converted.
Does this process the RAW sensor data?
No. Camera RAW files carry a JPEG rendered by the camera when the picture was taken, and that is what gets converted, so the result matches what you saw on the camera screen. For full development (white balance, highlight recovery, lens corrections) use a RAW editor.
Which apps open DDS files?
Game engines, Visual Studio, Paint.NET, GIMP, NVIDIA and Intel texture tools. It does not open in web browsers.
Are my images uploaded anywhere?
No. Processing happens inside your browser with WebAssembly and Web Workers. The site only downloads the app code and codecs; your files never leave your device. You can confirm this with the live upload counter on the tool, or in your browser's network panel.
Can I process many files at once?
Yes. Drop a whole selection or folder. Files are processed in parallel on several worker threads, each result can be downloaded on its own, and everything can be saved as one ZIP.
Is it free? Is there a file limit or watermark?
It is free with no account, no watermark and no daily limit. The only limit is your device's memory: very large images (over roughly 100 megapixels) may be refused to keep the tab from crashing.