Convert image
Convert images between PNG, JPEG, WebP and AVIF, and open HEIC photos from an iPhone, without uploading them.
Images
sample.pngsample
Working
What it does
Converts images from one format to another: PNG, JPEG, WebP, AVIF, GIF and HEIC in, and PNG, JPEG, WebP or AVIF out. Add one image or a whole folder’s worth, and each is converted on your device as soon as it is added.
Every image shows its size before and after, so you can see what the change of format did.
How to use it
- Choose images, drop them onto the page, or paste one from the clipboard. The page opens with a sample so you can see a result first.
- Pick the format to convert to.
- For JPEG, WebP and AVIF, set the quality. For JPEG, set the background colour if your images have transparency.
- Press Download beside an image to save that one, or Download all as zip to save them together.
The Send to buttons pass the first converted image straight to another tool, to resize it or compress it further, without saving it first.
Each image can be up to 50 MB. A file that cannot be read is marked in the list with the reason, and the rest carry on.
Questions
Are my images uploaded?
No. Each image is read and converted by your own browser, on your own device. Nothing is sent to a server, so it works for private photos and for files too large to upload comfortably.
Which format should I pick?
JPEG for photos that need to open anywhere. PNG for screenshots, logos and anything with sharp edges or transparency. WebP is smaller than both and works in every current browser. AVIF is smaller again, but takes longer to make and is not yet accepted by every app.
Can it open HEIC photos from an iPhone?
Yes. HEIC is the format iPhones save photos in, and many Windows and web apps cannot open it. Add the file and choose JPEG or PNG. The first HEIC takes a moment longer while the decoder loads.
What happens to transparent areas when I convert to JPEG?
JPEG has no transparency, so transparent areas are filled with a colour. It is white unless you change "Background for transparent areas". PNG, WebP and AVIF keep transparency as it is.
Does converting lose quality?
Converting to PNG never does. JPEG, WebP and AVIF throw away detail to save space, and the quality slider sets how much. Around 85% is hard to tell from the original; below 60% the loss starts to show in photos.
What about animated GIFs?
Only the first frame is converted. To work with the animation itself, use the GIF editor.