Image format converter

Change WebP to PNG, PNG to JPG, JPG to WebP or any other direction between the three. Convert many images at once; they are processed on your device and not uploaded.

How it works

Your browser opens each image, draws it onto an invisible canvas at its full size, and saves the canvas in the format you picked. Nothing leaves your device, so there is no file-size or file-count cap beyond your device's memory. The three formats behave differently:

PNG is lossless: every pixel is kept exactly, and transparent areas stay transparent. Photos saved as PNG are usually much larger than JPG or WebP.
JPG (JPEG) is lossy and has no transparency. The quality setting trades size against detail; 92 is close to invisible loss for most photos. Transparent areas are filled with the background colour you choose (white by default), instead of turning black as they do in some converters.
WebP is lossy here too, keeps transparency and is usually 25–35% smaller than a JPG of similar quality. Every current major browser can open it; some older apps and printers cannot, which is the usual reason to convert WebP to PNG or JPG.

Converted files keep the original names with the new extension (photo.webp becomes photo.png). If two files would get the same name, the second gets -2 added. With more than one file you also get a single ZIP download.

Worked example

You saved a product image from a website and it came down as chair.webp (800 × 800 pixels, 46 KB) with a transparent background. Your marketplace listing only accepts JPG or PNG.

To PNG: the background stays transparent and nothing is lost, but the file grows, often to several hundred KB, because PNG stores every pixel without lossy compression.
To JPG at quality 92 with a white background: the chair sits on white, which is what most marketplaces want, and the file stays small (typically somewhere between the WebP size and a few times it).

Exact sizes depend on the picture: flat graphics compress far better than detailed photos.

Limits

Metadata is removed. Saving through a canvas drops camera details and GPS location. Photos are turned the right way up first, using their rotation tag.
Animated GIF or WebP: only the first frame is kept.
HEIC (iPhone photos) is not supported, and AVIF can be opened only where your browser opens it itself; output is always PNG, JPG or WebP. TIFF and SVG are not converted.
Colour: images are converted to standard sRGB colour. Wide-gamut photos may look very slightly less saturated.
Size: up to 50 megapixels and 16,384 pixels per side. Large batches on a phone can run out of memory; convert them in smaller groups.
If your browser cannot save WebP, the tool tells you and you can pick PNG or JPG instead.

Need a file under a certain size instead of a different format? Use the image compressor, which aims for a target such as 100 KB.

FAQ

How do I convert WebP to PNG and keep the transparent background?

Choose your WebP files, pick PNG and press Convert. PNG keeps transparency exactly, so the background stays see-through.

Why does my PNG turn black when I convert it to JPG elsewhere?

JPG cannot store transparency. Some converters fill transparent pixels with black. This tool fills them with the background colour you choose, white unless you change it.

Does converting to PNG improve quality?

No. PNG keeps the image exactly as it is now, but detail already lost in a JPG or WebP cannot come back. It just stops further loss.

Can I convert many images at once?

Yes. Choose or drop as many as you like. Each gets its own download link, and with more than one you can download them all as a single ZIP file.

Can it convert HEIC photos from an iPhone?

No. On the iPhone you can switch new photos to JPG under Settings, Camera, Formats, Most Compatible. Sharing a photo by email or many apps also sends it as JPG.

Are my images uploaded?

No. Conversion happens in your browser, and the images are not uploaded or stored.