Drop in a photo and get a smaller WebP back in seconds — right on your device, no sign-up needed. Pick a converter below for tips on your format.
The converter
Drop in one image or a whole batch. Everything is converted on your device — no upload, no wait.
How it works
Convert a whole batch to WebP without sending anything to a server.
01
Pick a file or drag it straight in — JPG, PNG, GIF and more are all welcome.
02
Slide between smaller and sharper. 80 is a great default for most photos.
03
It saves straight to your device the moment it’s ready — no upload, no waiting.
Why WebP
Learn
WebP is a modern image format that compresses photos and graphics far more efficiently than older formats like JPG and PNG. The same image typically becomes 25–75% smaller with no visible loss in quality, which makes websites faster and lighter. It supports transparency and animation, and it works in every modern browser.
dotwebp runs entirely on your own device using the browser’s built-in image engine. Your pictures are never uploaded to a server, there are no accounts, no watermarks and no limits. You can even use it offline once the page has loaded.
Drop in a single image or a whole batch, choose a quality, and download optimised WebP files in seconds.
For format-specific tips, use a dedicated converter: JPG to WebP and JPEG to WebP for photos, PNG to WebP when you need transparency, or the bulk converter to process a whole folder at once and download a ZIP.
| Older formats | WebP | |
|---|---|---|
| File size | Larger | Typically 25–75% smaller |
| Transparency | PNG only | Yes |
| Animation | GIF only | Yes |
| Browser support | Universal | Every modern browser |
| Privacy here | — | Converted on your device |
FAQ
Any format your browser can decode — including JPG, JPEG, PNG, GIF, and BMP. Output is always WebP.
Inputs up to 100 MB and 32 megapixels are supported; very large files depend on your device memory since everything runs locally.
Yes — once the page has loaded, conversion needs no network connection.
The first frame is converted to a still WebP. Animated WebP output is out of scope for v1.
Yes — completely free, with no sign-up, ads or limits.
No. Every conversion happens locally in your browser; your images never leave your device.
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