Details: File format summary

Details for: WebP Lossless

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Properties

Summary
Name	WebP
Version	Lossless
Other names
Identifiers	PUID: fmt/567 MIME: image/webp
Family
Classification	Image (Raster)
Disclosure
Description	WebP is a raster image format developed by Google that uses the Resource Interchange File Format as a container. WebP’s lossless compression uses advanced techniques such as dedicated entropy codes for different color channels, exploiting 2D locality of backward reference distances and a color cache of recently used colors. This complements basic techniques such as dictionary coding, Huffman coding and color indexing transform.
Orientation
Byte order
Related file formats	Has priority over Resource Interchange File Format (RIFF)
Technical Environment
Released
Supported until
Format Risk
Developed by	Google
Supported by	Google
Source	Digital Preservation Department / The National Archives
Source date	19 Jul 2013
Source description	08/2023 (v.113) - Added priority over fmt/1886 (Resource Interchange Format (RIFF)). Submitted by New York Public Libraries and Preservica. 11/2023 (v.115)- Added MIME identifier 'webp/image'. Submitted by Archives New Zealand. 04/2024 (v.118)- Corrected MIME identifier to 'image/webp'. Submitted by Archives New Zealand.
Last updated	15 Apr 2024
Note