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Image MIME Reference
AVIF

AV1 Image File Format

image/avif
VS

Clip Studio Paint Document

image/vnd.clip
CLIP

A complete technical comparison of AV1 Image File Format and Clip Studio Paint Document — covering compression, feature support, browser compatibility, magic bytes, and when to choose each format.

AVIF wins on browser support

Feature Support

Feature AVIF CLIP
Transparency (Alpha) Yes Yes
Animation Support Yes Yes
Progressive Loading ✕ No ✕ No
HDR Support Yes ✕ No
EXIF Metadata Yes ✕ No
ICC Color Profile Yes Yes
AV1 Image File Format
image/avif
Extension
.avif
Container HEIF / ISOBMFF
Compression AV1 Lossy / AV1 Lossless
Algorithm
AV1
Color Depth 8-bit, 10-bit, 12-bit
Developed by Alliance for Open Media (AOMedia)
Released 2019
Magic Bytes
XX XX XX XX 66 74 79 70 61 76 69 66
Full AVIF reference →
Clip Studio Paint Document
image/vnd.clip
Extension
.clip.lip
Container SQLite 3 Database
Compression Proprietary Blob Compression (within SQLite)
Algorithm
Proprietary (Celsys Blob Encoding)
Color Depth 8-bit (Monochrome), 8-bit (Grayscale), 24-bit (RGB), 32-bit (CMYK)
Developed by Celsys, Inc.
Released 2012
Magic Bytes
53 51 4C 69 74 65 20 66 6F 72 6D 61 74 20 33 00
Full CLIP reference →

Browser Support Comparison

Browser AVIF CLIP
Chrome Chrome
✓ 85+
 ✕
Firefox Firefox
✓ 93+
 ✕
Safari Safari
✓ 16+
 ✕
Edge Edge
✓ 121+
 ✕
IE IE (Legacy)
✕ ✕
AVIF

AVIF Strengths

  • Best-in-class compression — typically 20–50% smaller than WebP at equivalent quality
  • Native HDR and wide color gamut (BT.2020) support
  • Supports 8, 10, and 12-bit color depth
Limitations
  • Encoding is highly CPU-intensive — significantly slower than JPEG or WebP
  • Requires Edge 121+ (not supported in earlier Edge versions)
  • Limited support in native desktop image viewers
CLIP

CLIP Strengths

  • SQLite backend provides incredibly robust data integrity, preventing catastrophic project loss if the application crashes during a save
  • Allows for massive multi-page comic projects and animation timelines to be handled efficiently without loading the entire project into RAM simultaneously
  • Industry standard for manga, anime, and webtoon professional workflows
Limitations
  • Heavily closed-source and proprietary, meaning no third-party applications (like ImageMagick or GIMP) can parse or render the files
  • Standard MIME identification tools will misidentify the file as a generic SQLite database, causing friction in automated file-upload validations
  • Zero web browser support

When to choose which format

AVIF
Use AVIF when…
  • Next-Gen Websites
  • HDR Photography
  • High-Quality Web Images
CLIP
Use CLIP when…
  • Digital Illustration and Concept Art
  • Manga and Webtoon Production
  • 2D Frame-by-Frame Animation
  • High-Resolution Print Production

More comparisons

AVIF vs ACES → CLIP vs ACES → AVIF vs APNG → CLIP vs APNG → AVIF vs AVCI → CLIP vs AVCI → AVIF vs AVCS → CLIP vs AVCS → All comparisons →
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