Two reasons people land on this page
1. A WebP is still too big. WebP is efficient, but a 4000-pixel-wide WebP saved at quality 95 is still large. Re-encoding at quality 80 and resizing to the dimensions you actually display routinely cuts another 50–80%.
2. Something won't accept WebP. Plenty of upload forms, government portals, older CMSs and print shops still demand JPG or PNG. Switch the output selector above to JPG and you have a converter — no upload, no watermark.
WebP in one table
| Property | WebP |
|---|---|
| Compression | Lossy and lossless modes |
| Transparency | Yes (alpha channel, both modes) |
| Animation | Yes (animated WebP replaces GIF) |
| vs JPG | 25–35% smaller at equal visual quality |
| vs PNG | Often 60–90% smaller with transparency intact |
| Browser support | All modern browsers (Chrome, Firefox, Safari 14+, Edge) |
For a deeper comparison see WebP vs JPG. If you're choosing a format for a website, WebP is almost always the answer — details in Best image format for websites.