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WebP consistently delivers smaller files than JPG at equivalent visual quality — typically 25–35% smaller for photographic content. For a website carrying dozens of images, that reduction translates directly into faster load times, lower bandwidth costs, and better Core Web Vitals scores.
All major browsers have supported WebP for several years, so the format is a safe default for web publishing today. Upload up to 200 JPGs, download a ZIP of WebPs.
JPEG compression dates from 1992 and uses DCT-based block encoding. WebP draws on techniques from the VP8 video codec, which was designed for much higher efficiency. The result is that WebP can represent the same image detail in fewer bytes — not because it cuts more corners, but because its compression algorithm is simply more sophisticated.
For a website serving product photography, blog images, or gallery thumbnails, switching the format library from JPG to WebP is one of the highest-leverage performance improvements available without touching the actual image content.
The converter uses a high-quality default setting. If you need to dial output quality precisely — for example, hitting a target file size for a specific platform — stack the Compress tool in the same run on this page. Set a quality value from 1 to 100, or enter a kilobyte target, and both operations execute in one decode-encode pass. There is no quality penalty from running them together versus separately.
JPG has no alpha channel, and neither does the WebP output of this conversion — transparency is not introduced. The image dimensions stay exactly as they are in the source file; if you also need to resize, stack the Resize tool in the same run. EXIF metadata is stripped by default; enable Keep metadata (EXIF) before starting if you need shooting data or copyright tags preserved in the output.
All modern browsers support WebP: Chrome, Firefox, Edge, and Safari (since version 14). Browsers older than roughly 2020 may lack support, but these represent a small and shrinking share of traffic for most sites.
At the default quality setting the difference is typically invisible on photographs. WebP is actually more efficient at preserving detail per byte than JPG, so equivalent quality often comes at a smaller file size.
Yes. Stack the Resize tool alongside the JPG→WebP converter on the same page. Both run in one pass per photo — no double encoding.
Up to 200 files per run, each up to 80 MB. Multiple outputs are packaged as a single ZIP for download.