# Sample WebP images for testing, free and CC0 2 WebP test files from 1.2 KB to 2.8 KB. Direct URLs, a SHA-256 for each and CC0, so curl and CI can fetch them with no signup and no keys. The page: . WebP is Google's image format for the web, with lossy and lossless compression and an alpha channel. Current browsers display it, but plenty of server-side image libraries and upload validators still reject it. `webp/lossy-640x480.webp` is the loremfile colour-bar test card saved as lossy WebP at quality 80. Because the same card exists as PNG and JPEG, you can compare sizes and decoded output across formats. `webp/alpha-256x256.webp` is a lossless WebP with an alpha ramp, the case that breaks converters which drop transparency or flatten it onto black. Lossless WebP uses a different bitstream from lossy WebP, so a decoder that handles one does not necessarily handle the other. Use them to test image upload forms, thumbnailers, CDNs that convert formats, and code that must recognise the `RIFF` header with a `WEBP` form type. Related formats: [PNG](https://loremfile.dev/png), [JPEG](https://loremfile.dev/jpg) and [AVIF](https://loremfile.dev/avif). ## Files | Path | Size | MIME | Properties | |---|---|---|---| | [`webp/alpha-256x256.webp`](https://loremfile.dev/webp/alpha-256x256.webp) | 1.2 KB (1,168 bytes) | `image/webp` | 256x256, RGBA | | [`webp/lossy-640x480.webp`](https://loremfile.dev/webp/lossy-640x480.webp) | 2.8 KB (2,834 bytes) | `image/webp` | 640x480, RGB | The same list as JSON: .