OneStopWebTools

Image Format Converter

Convert images to JPEG, PNG or WebP — for example WebP to JPG for an app that does not accept WebP, or PNG to WebP for a faster website. Convert several files at once, choose the quality, and set the background colour used where transparent areas meet a format that cannot store transparency.

Choose images to convert or drag and drop files here JPEG, PNG, WebP, GIF, BMP or AVIF · up to 25 MB each · processed on your device · up to 30 images

Step-by-step guide: How to Convert WebP to JPG (and PNG to WebP)

How to use the Image Format Converter

  1. Choose one or more images, or drag them onto the box.
  2. Select the format to convert to. The quality slider applies to JPEG and WebP; PNG is always lossless.
  3. If you convert transparent images to JPEG, choose the background colour that should fill transparent areas.
  4. Select Convert images. Each file shows its new size and a download button.
  5. Download files one by one, or all together as a ZIP archive.

Example: a logo with a transparent background

A logo saved as PNG with a transparent background needs to be uploaded to a site that only accepts JPEG. Converting to JPEG with a white background produces a JPEG that looks correct on white pages. If the logo will sit on a dark header, choose the header colour instead, so the edges blend in.

Going the other way, converting a photo from PNG to WebP at 85% quality typically produces a file many times smaller, because PNG is a poor choice for photographs.

Choosing the right format

FormatBest forTransparencyCompression
JPEGPhotographs; maximum compatibilityNoLossy
PNGScreenshots, logos, text and graphics with sharp edgesYesLossless
WebPWebsites: photos and graphics with smaller filesYesLossy or lossless

WebP is supported by all current major browsers and is usually the best choice for web pages. JPEG remains the safest choice when sending images to other people or uploading them to older systems.

How conversion works

Your browser decodes each image — including formats such as GIF, BMP and, where supported, AVIF — and draws it onto a canvas at full resolution. The canvas is then encoded in the target format with the browser’s built-in encoder. Converting does not change the image’s dimensions. If the browser cannot encode the chosen format, the tool reports it instead of saving a mislabelled file.

Limitations to keep in mind

  • Output formats are limited to JPEG, PNG and WebP, which all major browsers can encode. AVIF, HEIC, TIFF and SVG output is not available.
  • Input formats depend on your browser. HEIC photos from iPhones open only in Safari; in other browsers, set your iPhone camera to “Most Compatible” or convert on the device first.
  • Converting a lossy image to a lossless format (JPEG to PNG) does not restore lost detail and usually makes the file larger.
  • Metadata and colour profiles are not copied to the converted file.

How your data is handled

Conversion takes place in your browser. Your images are not uploaded or kept.

Frequently asked questions

Does converting reduce image quality?

Converting to PNG is lossless. Converting to JPEG or WebP applies lossy compression at the quality you choose; at 90% the difference is very hard to see.

Why did my transparent background turn white?

JPEG does not support transparency, so transparent pixels must be filled with a colour. Choose PNG or WebP to keep transparency, or pick a different background colour.

Can I convert HEIC photos?

Only in Safari, which can decode HEIC. Other browsers cannot open HEIC files, so the tool will report that the file is not supported.

Can I convert an animated GIF to WebP?

The converter uses the first frame of an animated GIF, so the result is a still image.