Quality 80 · higher looks better, lower is smaller
Largest file size in KB. Images are resized only if quality alone can’t reach it.
Compress WebP images, or convert JPG and PNG to WebP
WebP is the image format built for the web. It makes photos about 25 to 35 percent smaller than JPEG at the same quality, supports transparency like PNG, and works in every modern browser. This tool compresses WebP images further, or converts JPG, PNG, and GIF images to WebP, with control over quality, file size, and dimensions.
Everything runs in your browser. Your images are never uploaded.
How to use it
- Choose WebP, JPG, PNG, or GIF images, or drag them onto the box. Several at once is fine.
- Set a quality, or switch to Target size and type the largest file size you want.
- Optionally reduce the largest dimension. Most websites never display images wider than 1920 pixels.
- Hold an image to compare it with the original, then download one or all of them as a ZIP.
What quality should I use?
| Quality | Best for |
|---|---|
| 85 to 95 | Photography portfolios, product zoom images, anything people look at closely |
| 75 to 85 | Most website images, blog photos, and product photos. Hard to tell from the original. |
| 60 to 75 | Thumbnails, backgrounds, and images where speed matters most |
| Below 60 | Only when size is critical. Edges and gradients start to blur. |
The Target size mode does the tuning for you. It tries different qualities to find the highest one that fits your limit, and only shrinks the image's dimensions if no quality would be small enough.
Things this tool handles for you
- Never bigger: if re-saving a WebP wouldn't make it smaller, the original is kept and labeled as such.
- Transparency is kept: transparent PNGs become transparent WebPs. Only JPEG output fills transparency with white, and the tool tells you when that happens.
- Animated WebP and GIF: browsers can't re-save animations without losing every frame but the first, so animated images are detected and left untouched.
- Metadata is removed: camera details and GPS location in the original are not copied into the result.
WebP and SEO
Image size is one of the biggest factors in how fast a page loads. Google's PageSpeed Insights recommends serving images in modern formats like WebP, and faster pages score better on Core Web Vitals, especially Largest Contentful Paint. Converting your hero images and product photos to WebP at around quality 80 is one of the easiest speed improvements you can make.
Frequently asked questions
Are my images uploaded?
No. All compression happens in your browser, using its built-in WebP encoder.
Why does Safari save JPEG instead of WebP?
Safari can display WebP but can't create WebP files from a web page. The tool detects this and uses JPEG instead. Use Chrome, Edge, or Firefox to create WebP files.
Will WordPress accept WebP?
Yes. WordPress has supported WebP uploads since version 5.8, and most modern themes and page builders handle them like JPEGs.
Is WebP lossless?
WebP has both lossy and lossless modes. Browsers create lossy WebP, which is right for photos. For pixel-perfect graphics, save as PNG instead.
Can I convert WebP back to JPG or PNG?
Yes. Choose JPEG or PNG under "Save as." This helps when an app or website won't accept WebP.