Convert BMP to DDS
Convert BMP files to DDS locally, completely free and with maximum privacy.
Drag and drop your files here
or click to browse local files (large files supported, limited only by browser RAM)
Upload FilesPlatform Statistics
How to convert BMP to DDS
- Drop your .bmp files above, or click Upload Files. You can add many files at once.
- DDS is already selected as the output. Open the settings (gear icon) to fine-tune the result.
- Click Convert All. ImageMagick runs inside your browser through WebAssembly; nothing is uploaded.
- Download your .dds files as soon as each one finishes.
What to know about BMP to DDS conversion
- DDS uses lossy compression, so files are usually much smaller than BMP. Use the quality slider to balance size and detail.
- DDS is best for GPU-compressed textures for games, and opens in game engines, DirectX tools and texture editors.
BMP vs DDS
| Feature | BMP (Bitmap Image File) | DDS (DirectDraw Surface) |
|---|---|---|
| Compression | uncompressed | lossy |
| Transparency | No | Yes |
| Animation | No | No |
| Best for | pixel-exact images for legacy Windows software | GPU-compressed textures for games |
| Opens in | Windows apps and most image editors | game engines, DirectX tools and texture editors |
BMP (Bitmap Image File): A classic uncompressed raster graphics format developed by Microsoft, preserving pixel-perfect quality.
DDS (DirectDraw Surface): An image format designed by Microsoft for storing textures and cubic environments for rendering engines.
Conversion options
- Resize by width, height or both (aspect ratio is preserved)
- Filters: grayscale, sepia, blur and sharpen
- Custom output file name
Frequently asked questions
Is it safe to convert BMP to DDS here?
Yes. Your files are processed entirely on your own device by WebAssembly code running in the browser. They are never uploaded, so nobody else can see them, and the converter keeps working even if your connection drops after the page loads.
Is there a file size limit?
There is no server-side limit. The only limit is the memory available to your browser, typically 1.5–4 GB on desktop computers.
Can I convert several BMP files at once?
Yes. Add as many files as you like; they are converted in parallel according to your device's CPU cores, and you can apply the same settings to all of them.
Related conversions
Need the opposite? Convert DDS to BMP.
Convert BMP to other formats
- BMP to JPG
- BMP to PNG
- BMP to PDF
- BMP to WEBP
- BMP to GIF
- BMP to SVG
- BMP to AVIF
- BMP to ICO
- BMP to TIFF
- BMP to JXL
- BMP to PSD
- BMP to TGA
Convert other formats to DDS
- JPG to DDS
- PNG to DDS
- PDF to DDS
- WEBP to DDS
- HEIC to DDS
- GIF to DDS
- SVG to DDS
- AVIF to DDS
- ICO to DDS
- TIFF to DDS
- JXL to DDS
- PSD to DDS
See every BMP converter and DDS converter, or browse the full converter directory.