Free webp to jpg
Image MIME Reference
DDS

DirectDraw Surface

image/vnd.ms-dds
VS

JPEG XS Image

image/jxs
JPEG-XS

A complete technical comparison of DirectDraw Surface and JPEG XS Image — covering compression, feature support, browser compatibility, magic bytes, and when to choose each format.

Equal browser support

Feature Support

Feature DDS JPEG-XS
Transparency (Alpha) Yes Yes
Animation Support ✕ No Yes
Progressive Loading ✕ No ✕ No
HDR Support Yes Yes
EXIF Metadata ✕ No Yes
ICC Color Profile ✕ No Yes
DirectDraw Surface
image/vnd.ms-dds
Extension
.dds
Container DirectDraw Surface
Compression Block Compression (BC1-BC7) / DXTC / S3TC / Uncompressed (RGBA, Floating-Point)
Algorithm
DXT1-DXT5BC1-BC7ASTC / ETC2 (Extended)
Color Depth 8-bit, 16-bit, 24-bit, 32-bit (RGBA), 16-bit/32-bit Floating Point (HDR)
Developed by Microsoft Corporation
Released 1999
Magic Bytes
44 44 53 20
Full DDS reference →
JPEG XS Image
image/jxs
Extension
.jxs
Container ISOBMFF (ISO/IEC 21122-3) or Raw Codestream
Compression Lossy (Visually Lossless) / Mathematically Lossless
Algorithm
JPEG XS (Low-complexity wavelet transform)
Color Depth 8-bit, 10-bit, 12-bit, 14-bit, 16-bit
Developed by Joint Photographic Experts Group (JPEG) / intoPIX
Released 2019
Magic Bytes
FF 10 (Codestream) / XX XX XX XX 66 74 79 70 6A 78 73 20 (ISOBMFF)
Full JPEG-XS reference →

Browser Support Comparison

Browser DDS JPEG-XS
Chrome Chrome
Firefox Firefox
Safari Safari
Edge Edge
IE IE (Legacy)
DDS

DDS Strengths

  • Massively reduces VRAM footprint and memory bandwidth usage because the GPU decodes the block compression in hardware
  • Encapsulates complex texture arrays, volume textures, cubemaps, and entire mipmap chains within a single, highly structured file
  • Supports high-dynamic-range (HDR) floating-point data for modern physically based rendering (PBR)
Limitations
  • Block compression algorithms (like DXT) are lossy and can introduce ugly blocky artifacts, especially in smooth gradients or normal maps if not tuned properly
  • Files are generally larger on the physical hard drive than highly compressed formats like PNG or WebP
  • Zero support in web browsers or standard consumer image viewers
JPEG-XS

JPEG-XS Strengths

  • Provides sub-millisecond encoding/decoding latency, essential for live production and gaming
  • Extremely lightweight, requiring very little CPU, GPU, or FPGA memory to process
  • Replaces uncompressed video links (like SDI or HDMI) over standard Ethernet networks with visually lossless quality
Limitations
  • Compression ratios are typically much lower (between 2:1 and 10:1) compared to heavy codecs like HEVC or AV1
  • Zero support in web browsers or standard consumer devices
  • Primarily licensed to hardware manufacturers and professional software ecosystems

When to choose which format

DDS
Use DDS when…
  • Real-Time 3D Game Textures
  • DirectX and Vulkan Rendering Pipelines
  • Skyboxes and Environment Cubemaps
  • Volume Textures (3D Textures)
JPEG-XS
Use JPEG-XS when…
  • Live Video Broadcasting (SMPTE ST 2110)
  • Video over IP Networks
  • Virtual Reality / Augmented Reality (VR/AR)
  • Automotive & Drone Cameras
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