Image to WebP converter
Convert images to WebP in the browser with a quality slider.
FreeRuns in your browserNo signupUpdated 2026-10-29
80% is a good default. Transparency is kept.
Before
0 B
0 files
As WebP
0 B
quality 80%
Saved
0%
smaller than the originals
| File | Size | Before | After |
|---|
Animated GIFs lose their animation: only the first frame is converted.
About this tool
How it works and how to read the result.
Need this done for you?
Technical SEO & performance
Faster pages, clean structure and better visibility in search.
See the serviceWhat it does
Convert to WebP in a few seconds without installing anything: choose your JPG, PNG, GIF or other images and the browser re-encodes each one as WebP at the quality you set. WebP files are usually noticeably smaller than JPG at the same visual quality, and they keep transparency like PNG, which is why they are the standard choice for images on modern websites. The converter shows each file's size before and after and the saving as a percentage. Download one file or a zip of all of them. Your images never leave your device.
How to use it
- Choose one or more images. A sample image is loaded so you can see how it works.
- Set the quality. 80% suits most photos; graphics with flat colour can go lower.
- Compare the before and after sizes in the table.
- Download the WebP files one by one, or all together as a zip.
- Upload them to your site and update the image references, keeping the old files until every page points to the new ones.
How to read the result
Before shows the total size of the originals, As WebP the total after conversion, and Saved the difference. The table repeats this for each file, with its dimensions, which do not change.
As a worked example, take a 900 KB PNG screenshot of a dashboard. At 80% quality it might come out around 120 KB, a saving of about 87%. Screenshots and graphics often shrink the most, because PNG stores every pixel exactly while WebP can approximate flat areas. A photo already saved as a well-compressed JPG gains less: a 300 KB JPG might become 210 KB, about 30% smaller.
If a row shows an amber badge with a negative percentage, the WebP is bigger than the original. That happens with small, already optimised files or at a quality near 100. Lower the quality, or keep the original for that image.
Animated GIFs convert to a single still frame, so leave those as they are or turn them into video.
To shrink the dimensions as well, run the files through the image resizer first. Moving a site's images to WebP is a standard step in our technical SEO work.
Questions
Frequently asked.
Do all browsers support WebP?
Yes. Current versions of Chrome, Safari, Firefox and Edge all display WebP, and Safari has done so since version 14 in 2020. You no longer need a JPG fallback for visitors on modern devices. Email clients are the exception: many still do not show WebP, so keep JPG or PNG for newsletters.
Is WebP better than AVIF?
AVIF usually gives smaller files at the same visual quality, but it is slower to encode and most browsers cannot write it from a canvas, so it needs a separate tool or a build step. WebP is the practical default: smaller than JPG, supported everywhere and quick to produce. Use AVIF when your image pipeline generates it for you.
Does converting to WebP keep transparency?
Yes. WebP supports an alpha channel, so logos and cut-out product shots on transparent PNGs stay transparent after conversion. That makes WebP a good replacement for PNG graphics as well as for JPG photos, often at a fraction of the size.
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