Convert HEIC to DDS
Convert HEIC 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 HEIC to DDS
- Drop your .heic 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 HEIC to DDS conversion
- HEIC photos from iPhone and Android are decoded locally; your photos are never uploaded to a server.
- Transparency is preserved: DDS supports an alpha channel just like HEIC.
- DDS is best for GPU-compressed textures for games, and opens in game engines, DirectX tools and texture editors.
HEIC vs DDS
| Feature | HEIC (High Efficiency Image Container) | DDS (DirectDraw Surface) |
|---|---|---|
| Compression | lossy | lossy |
| Transparency | Yes | Yes |
| Animation | No | No |
| Best for | photos taken with iPhones and recent Android phones | GPU-compressed textures for games |
| Opens in | Apple devices, and Windows with the HEIF extensions | game engines, DirectX tools and texture editors |
HEIC (High Efficiency Image Container): The default photo format on iPhones and many Android devices, based on the HEVC codec.
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 HEIC 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 HEIC 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
Convert HEIC to other formats
- HEIC to JPG
- HEIC to PNG
- HEIC to PDF
- HEIC to WEBP
- HEIC to GIF
- HEIC to SVG
- HEIC to AVIF
- HEIC to ICO
- HEIC to TIFF
- HEIC to BMP
- HEIC to JXL
- HEIC to PSD
Convert other formats to DDS
- JPG to DDS
- PNG to DDS
- PDF to DDS
- WEBP to DDS
- GIF to DDS
- SVG to DDS
- AVIF to DDS
- ICO to DDS
- TIFF to DDS
- BMP to DDS
- JXL to DDS
- PSD to DDS
See every HEIC converter and DDS converter, or browse the full converter directory.