1355 WebP Lossless Image (Raster) 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. 1 Digital Preservation Department / The National Archives 19 Jul 2013 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. 15 Apr 2024 fmt/567 PUID image/webp MIME webp File extension 903 WebP Lossless RIFF{4}WEBPVP8L 1 Absolute from BOF 0 0 52494646{4}574542505650384C Has priority over 2741 Resource Interchange File Format (RIFF)