JPG to WebP — Free, in Your Browser
WebP is the modern web format: at the same visual quality it is usually 25–35% smaller than JPG, and it is supported by every current browser.
Image Converter
JPG ↔ PNG ↔ WebP — 100% local
Why convert JPG to WebP
WebP is the modern web format: at the same visual quality it is usually 25–35% smaller than JPG, and it is supported by every current browser. If you run a site and your page weight is dominated by photos, this single conversion is often the cheapest performance win available — no re-shoot, no re-compress pipeline, just a format swap.
Use it for the images you publish — product shots, blog headers, gallery photos. Keep the original JPG on disk as your master; WebP is a distribution format, not an archive format.
How to do it (3 steps)
- Drop in your JPG — processed locally, never uploaded.
- Choose WebP as the target format.
- Download the smaller file; the original stays exactly as it was.
Technical note
Rule of thumb from real-world image sets: a 300 KB JPG at 85% quality becomes roughly 190–220 KB as WebP at comparable quality. Across a 40-image page that is 4–8 MB of transfer saved, which is a measurable Core Web Vitals improvement. For flat graphics the gap widens further (WebP is especially efficient on screenshots and UI).
The mistake worth avoiding
The common mistake is converting once and deleting the JPG master. WebP at 80% is smaller than JPG at 80%, but it is also a lossy generation: if you later re-encode that WebP (resize it, crop it, convert it again), each pass costs a little. Keep the original JPG on disk as the archive copy and treat the WebP as the distribution copy — the same relationship a photographer keeps between RAW and the exported JPEG.
FAQ
- Will my visitors see any difference? No — every current browser renders WebP natively. If you support something older than 2018, serve the JPG as a fallback.
- Can I convert it back later? Yes, but WebP is lossy at the same quality settings, so keep your JPG master if you may re-encode again.
- Does it upload my photo? No — encoding runs in your browser. The file never leaves the device.
- What about EXIF data (camera info, GPS)? Browser canvas encoding strips metadata when it re-encodes pixels, so the WebP output will not carry the original EXIF. That is usually a feature for privacy, but if the metadata matters to your workflow, convert with a tool that preserves it.
Image Converter (all formats) — full tool →