{
 "id": "webp-lossless",
 "name": "WebP",
 "category": "image",
 "identifiers": {
  "mime": [
   "image/webp"
  ],
  "puid": [
   "fmt/567"
  ],
  "wikidata": [
   "Q683670"
  ],
  "extensions": [
   "webp"
  ],
  "magic": [
   {
    "offset": 0,
    "hex": "52494646",
    "notes": "WebP Lossless"
   }
  ],
  "signatures": [
   {
    "name": "WebP Lossless",
    "sequences": [
     {
      "position": "bof",
      "offset": 0,
      "pattern": "52494646{4}574542505650384c"
     }
    ]
   }
  ],
  "priority_over": [
   "fmt/1886"
  ]
 },
 "status": "writable",
 "summary": "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.",
 "tools": [
  {
   "name": "ACDSee",
   "url": "https://www.acdsee.com",
   "reads": true,
   "writes": true,
   "license": "proprietary license"
  },
  {
   "name": "Android",
   "url": "https://android.com",
   "reads": true,
   "writes": true,
   "license": "Apache Software License 2.0 / GNU General Public License, version 2.0",
   "open_source": true
  },
  {
   "name": "Apache Tika",
   "url": "https://tika.apache.org",
   "reads": true,
   "writes": false,
   "license": "Apache Software License 2.0",
   "open_source": true
  },
  {
   "name": "Cloudflare Polish",
   "url": "https://developers.cloudflare.com/images/polish/",
   "reads": false,
   "writes": true
  },
  {
   "name": "ExifTool",
   "url": "https://exiftool.org/",
   "reads": true,
   "writes": false,
   "license": "Artistic License / GNU General Public License, version 1.0 or later",
   "open_source": true
  },
  {
   "name": "GIMP",
   "url": "https://gimp.org",
   "reads": true,
   "writes": true,
   "license": "GNU General Public License, version 3.0",
   "open_source": true
  },
  {
   "name": "IrfanView",
   "url": "https://www.irfanview.com/",
   "reads": true,
   "writes": false,
   "license": "freeware"
  },
  {
   "name": "Krita",
   "url": "https://krita.org",
   "reads": true,
   "writes": true,
   "license": "GNU General Public License, version 3.0",
   "open_source": true
  },
  {
   "name": "libexiv2",
   "url": "https://exiv2.org/",
   "reads": true,
   "writes": true,
   "license": "GNU General Public License, version 2.0 or later",
   "open_source": true
  },
  {
   "name": "nomacs",
   "url": "https://nomacs.org",
   "reads": true,
   "writes": false,
   "license": "GNU General Public License, version 3.0",
   "open_source": true
  },
  {
   "name": "OpenImageIO",
   "url": "http://www.openimageio.org",
   "reads": true,
   "writes": false,
   "license": "BSD licenses",
   "open_source": true
  },
  {
   "name": "PhotoLine",
   "url": "http://www.pl32.de",
   "reads": true,
   "writes": false
  },
  {
   "name": "Picasa",
   "url": "https://picasa.google.com/",
   "reads": true,
   "writes": false,
   "license": "freeware"
  },
  {
   "name": "Pixelmator Classic",
   "url": "https://www.pixelmator.com/mac/",
   "reads": true,
   "writes": false,
   "license": "proprietary license"
  },
  {
   "name": "Q1047199",
   "url": "https://imagemagick.org",
   "reads": true,
   "writes": false,
   "license": "ImageMagick License",
   "open_source": true
  },
  {
   "name": "Q650922",
   "url": "https://www.xnview.com/",
   "reads": false,
   "writes": true,
   "license": "freeware / proprietary license"
  },
  {
   "name": "Abydos",
   "url": "https://www.wikidata.org/wiki/Q133445760",
   "reads": true,
   "writes": false,
   "license": "GNU Lesser General Public License",
   "open_source": true,
   "via": "webp"
  },
  {
   "name": "Adobe Photoshop Elements",
   "url": "http://www.adobe.com/products/photoshop-elements.html",
   "reads": true,
   "writes": true,
   "via": "webp"
  },
  {
   "name": "Affinity Photo",
   "url": "https://affinity.serif.com/de/photo/",
   "reads": true,
   "writes": false,
   "via": "webp"
  },
  {
   "name": "Aseprite",
   "url": "https://aseprite.org",
   "reads": false,
   "writes": true,
   "license": "proprietary license",
   "via": "webp"
  },
  {
   "name": "Clip Studio Paint",
   "url": "https://www.clipstudio.net/th/",
   "reads": false,
   "writes": true,
   "license": "proprietary license",
   "via": "webp"
  },
  {
   "name": "Converseen",
   "url": "https://converseen.fasterland.net/",
   "reads": true,
   "writes": false,
   "license": "GNU General Public License, version 3.0",
   "open_source": true,
   "via": "webp"
  },
  {
   "name": "GD Graphics Library",
   "url": "http://libgd.github.io",
   "reads": false,
   "writes": true,
   "license": "BSD licenses",
   "open_source": true,
   "via": "webp"
  },
  {
   "name": "Godot",
   "url": "https://godotengine.org/",
   "reads": true,
   "writes": false,
   "license": "MIT License",
   "open_source": true,
   "via": "webp"
  },
  {
   "name": "imageio",
   "url": "http://imageio.github.io/",
   "reads": true,
   "writes": false,
   "license": "2-clause BSD License",
   "open_source": true,
   "via": "webp"
  },
  {
   "name": "Mapbox GL JS",
   "url": "https://docs.mapbox.com/mapbox-gl-js/",
   "reads": true,
   "writes": false,
   "license": "proprietary license",
   "via": "webp"
  },
  {
   "name": "MapLibre GL JS",
   "url": "https://github.com/maplibre/maplibre-gl-js#readme",
   "reads": true,
   "writes": false,
   "license": "3-clause BSD License",
   "open_source": true,
   "via": "webp"
  },
  {
   "name": "Mozilla Firefox",
   "url": "https://www.firefox.com",
   "reads": true,
   "writes": false,
   "license": "Mozilla Public License, version 2.0",
   "open_source": true,
   "via": "webp"
  },
  {
   "name": "PaintShop Pro X4",
   "url": "https://www.wikidata.org/wiki/Q110977057",
   "reads": true,
   "writes": true,
   "via": "webp"
  },
  {
   "name": "PaintShop Pro X6 Ultimate",
   "url": "https://www.wikidata.org/wiki/Q113679458",
   "reads": true,
   "writes": false,
   "via": "webp"
  },
  {
   "name": "PDF Guru",
   "url": "https://pdfguru.com/",
   "reads": true,
   "writes": false,
   "via": "webp"
  },
  {
   "name": "Photopea",
   "url": "https://www.photopea.com/",
   "reads": true,
   "writes": true,
   "via": "webp"
  },
  {
   "name": "PhotoRec",
   "url": "http://www.cgsecurity.org/wiki/PhotoRec",
   "reads": true,
   "writes": false,
   "license": "GNU General Public License",
   "open_source": true,
   "via": "webp"
  },
  {
   "name": "PicPick",
   "url": "http://www.picpick.org/",
   "reads": true,
   "writes": true,
   "via": "webp"
  },
  {
   "name": "PixiEditor",
   "url": "https://pixieditor.net/",
   "reads": true,
   "writes": false,
   "license": "GNU Lesser General Public License, version 3.0",
   "open_source": true,
   "via": "webp"
  },
  {
   "name": "Q108353872",
   "url": "https://glaxnimate.org/",
   "reads": true,
   "writes": true,
   "license": "GNU General Public License, version 3.0",
   "open_source": true,
   "via": "webp"
  },
  {
   "name": "Q130252332",
   "url": "https://sorairolake.github.io/qrtool/",
   "reads": true,
   "writes": false,
   "license": "Apache Software License 2.0 / Creative Commons Attribution 4.0 International / MIT License",
   "open_source": true,
   "via": "webp"
  },
  {
   "name": "Q141647655",
   "url": "https://getartcraft.com/apps/photocraft",
   "reads": true,
   "writes": true,
   "license": "Apache Software License 2.0 / MIT License",
   "open_source": true,
   "via": "webp"
  },
  {
   "name": "Q141647660",
   "url": "https://getartcraft.com/apps/lightcraft",
   "reads": true,
   "writes": true,
   "license": "Apache Software License 2.0 / MIT License",
   "open_source": true,
   "via": "webp"
  },
  {
   "name": "Q141647662",
   "url": "https://getartcraft.com/apps/vectorcraft",
   "reads": false,
   "writes": true,
   "license": "Apache Software License 2.0 / MIT License",
   "open_source": true,
   "via": "webp"
  },
  {
   "name": "Q1936840",
   "url": "https://www.darktable.org/",
   "reads": true,
   "writes": true,
   "via": "webp"
  },
  {
   "name": "Q472277",
   "url": "https://www.faststone.org/FSViewerDetail.htm",
   "reads": true,
   "writes": false,
   "license": "freeware",
   "via": "webp"
  },
  {
   "name": "SlideScope",
   "url": "https://slidescope.science/",
   "reads": true,
   "writes": false,
   "license": "proprietary license",
   "via": "webp"
  },
  {
   "name": "Tesseract",
   "url": "https://github.com/tesseract-ocr",
   "reads": true,
   "writes": false,
   "license": "Apache Software License 2.0",
   "open_source": true,
   "via": "webp"
  },
  {
   "name": "ThorVG",
   "url": "https://www.thorvg.org",
   "reads": true,
   "writes": false,
   "license": "MIT License",
   "open_source": true,
   "via": "webp"
  },
  {
   "name": "Zenphoto",
   "url": "https://www.zenphoto.org",
   "reads": true,
   "writes": false,
   "license": "GNU General Public License, version 2.0",
   "open_source": true,
   "via": "webp"
  }
 ],
 "projects": [
  {
   "name": "Kaitai Struct: webp",
   "url": "https://formats.kaitai.io/webp/",
   "kind": "grammar",
   "license": "CC0-1.0"
  },
  {
   "name": "PRONOM fmt/567",
   "url": "https://www.nationalarchives.gov.uk/PRONOM/fmt/567",
   "kind": "format-doc"
  },
  {
   "name": "Wikidata Q683670",
   "url": "https://www.wikidata.org/wiki/Q683670",
   "kind": "wiki"
  }
 ],
 "provenance": {
  "sources": [
   "kaitai",
   "pronom",
   "wikidata"
  ]
 },
 "updated": "2026-10-24",
 "version": "Lossless",
 "parsers": [
  {
   "engine": "kaitai",
   "url": "https://github.com/kaitai-io/kaitai_struct_formats/blob/master/image/webp.ksy",
   "license": "CC0-1.0"
  }
 ],
 "aliases": [],
 "structure": [],
 "conversions": [
  {
   "to": "portable-network-graphics",
   "tool": "ImageMagick",
   "command": "convert in.webp out.png",
   "fidelity": "lossless",
   "losses": "Pixels kept; some metadata, colour profiles or layers may be dropped.",
   "url": "https://imagemagick.org",
   "via": "webp"
  },
  {
   "to": "tagged-image-file-format",
   "tool": "ImageMagick",
   "command": "convert in.webp out.tif",
   "fidelity": "lossless",
   "losses": "Pixels kept; some metadata, colour profiles or layers may be dropped.",
   "url": "https://imagemagick.org",
   "via": "webp"
  },
  {
   "to": "jpeg-file-interchange-format-1-02",
   "tool": "ImageMagick",
   "command": "convert in.webp out.jpg",
   "fidelity": "lossy",
   "losses": "Lossy compression.",
   "url": "https://imagemagick.org",
   "via": "webp"
  },
  {
   "to": "gif",
   "tool": "ImageMagick",
   "command": "convert in.webp out.gif",
   "fidelity": "lossy",
   "losses": "Reduced to 256 colours.",
   "url": "https://imagemagick.org",
   "via": "webp"
  }
 ],
 "samples": [],
 "claims": [],
 "verification": [],
 "family": "webp"
}