AnyFormat

00 PNG → WebP

PNG to WebP

The one conversion that keeps transparency and shrinks the file.

Drop files or a folder here

or choose from your device · paste with ⌘V / Ctrl+V

.png

03Options 5

82 is the point where most people stop being able to tell. Above 90 the file grows fast for very little.

  • No upload The conversion runs in this tab. Your file never travels — not to us, and not to the advertising.
  • No sign-up, no email, no daily cap There is no account system to sign up to.
  • No size limit we invented Only your device's memory — about ~2 GB on a desktop browser, ~400 MB on a phone.
  • Turn your Wi-Fi off and convert anyway The conversion needs nothing but this page. Ads will not load without a connection; your file will still convert. That is the whole claim, and it takes five seconds to check.

Converts PNG to WebP. This is the conversion worth doing to almost any PNG destined for the web: it keeps the transparency PNG has and gets close to the size JPEG achieves.

Why WebP is usually the right answer for the web

PNG keeps transparency but is large. JPEG is small but has no transparency and mangles text. WebP does both jobs: full alpha channel, and typically 25–35% smaller than JPEG at the same visual quality — which for a PNG source often means an 80–90% reduction.

Every browser in current use supports it, and has since 2020. For an image that will be displayed in a browser, there is very little reason to serve PNG instead.

Lossy or lossless

WebP has both modes. This tool writes lossy WebP with the quality you choose, because that is where the size saving is.

For a photograph, quality 82 is indistinguishable and enormously smaller. For a screenshot or a logo with flat colour and text, push the quality to 90 or above — lossy compression on hard edges shows sooner than it does on photographs, though WebP handles it far better than JPEG.

If the image is a master file you will edit again, keep the PNG as well. This is a lossy step.

Metadata is removed, which is usually the point

Re-encoding through a canvas keeps the pixels and discards everything else: EXIF, GPS coordinates, camera make and model, lens, shutter speed, the timestamp, any embedded thumbnail, and the colour profile.

For a photo you are about to publish this is a feature. A JPEG straight off a phone can carry the exact coordinates of where it was taken, and stripping that before it goes anywhere public is good practice — the conversion does it as a side effect.

The one piece of metadata that is honoured before being dropped is the orientation flag. Phones store photos in the sensor's native orientation with a tag saying which way is up; ignoring it produces sideways pictures. It is applied to the pixels, so the result is upright without needing the tag.

If you need the EXIF preserved, this is the wrong tool — a converter that re-encodes cannot keep it.

Other names for this

Also searched as “convert png to webp”, “png to webp with transparency”.

Questions

Do all browsers support WebP?
Yes — Chrome, Edge, Firefox and Safari have all supported it since 2020. Desktop applications are the weak spot, not browsers.
Is transparency kept?
Yes, in full. That is the main advantage over converting to JPG.
How much smaller will it be?
From a PNG photograph, usually 80–90% smaller. From a screenshot or logo, less dramatic but still substantial.
Can I convert a whole folder of images?
Yes. Drop as many files as you like, or a whole folder. Each keeps its original name with the new extension — IMG_4032.heic becomes IMG_4032.jpg, never converted_1.jpg — and you can download them individually or as a ZIP.
Are my photos uploaded?
No. The decoding and re-encoding happen in this tab using the browser’s own image support. Photos are personal in a way most files are not, and none of them is transmitted. Turn your Wi-Fi off and the converter keeps working.
How large an image can I convert?
The practical ceiling is the browser’s canvas limit, about 268 million pixels in total area — roughly 16,000 × 16,000. Above that you get a clear error rather than a silent failure, and resizing first is the fix. File size itself is limited only by your device’s memory.