Convert PNG to WEBP online

Prepare PNG screenshots or graphics as WEBP, checking how the output handles transparency.

Automatic deletion

InputPNGOutputWEBP

Step 1 of 3 · Files

Expires in 24 h

Files
Format
Result

Expires in 24 h

Select PNG files

From your phone, computer, or drag them here

PNG · 50.0 MB per file · up to 5

From your phone, computer, or drag them here. PNG · 50.0 MB per file · up to 5

The listed formats are accepted. Each file's structure is validated before conversion.

What will I receive?

PNG to WEBP

The WebP result is static and re-encoded at the selected quality, with compatible transparency preserved. A smaller file is not guaranteed; compare the downloaded result with the source.

Conversion limits

What limits apply?

Up to 5 files, 50 MB each. Encrypted files, animations and unsafe content are not accepted. Structural validation may reject a conversion.

Input and output expire automatically after the period shown in the converter. Download your result before then.

Practical guide

Prepare a PNG as WEBP for use on a website

WEBP can preserve transparency and provide a suitable copy for web publishing. Check compatibility, file size, and appearance before replacing the original PNG.

What to check in a web graphic

Check that the editor, content management system, or application where you will publish the image accepts WEBP. The file needs to work in the actual workflow that receives it as well as look correct.

A smaller file is not guaranteed for every PNG. Its content, dimensions, and chosen quality affect the result, so compare the downloaded file size with the original.

Transparency and edges on other backgrounds

Formotra retains compatible PNG transparency when it generates the WEBP. This is useful for icons and graphics that must sit on top of a page background.

Inspect outlines, fine lettering, and small details on the design's actual background, especially when it is dark or coloured. Keep the PNG so you can prepare another version when the layout changes.

Choosing quality and dimensions

First confirm the dimensions required by the design. If you alter them, you are changing the image size as well as its format.

Then compare the output at its actual display size and in a magnified area. Small text, defined edges, and gradients help reveal changes that may not be visible in a reduced preview.

When to choose another output

If the destination requires JPG and an opaque background is suitable, use PNG to JPG.

If you need to assemble screenshots in an ordered document, use PNG to PDF. The right choice depends on what you need to deliver.

Frequently asked questions

Which PNG files can I convert?

A PNG may contain transparency. Whether it survives depends on the output format; converting does not automatically make an image smaller.

What should I check when converting PNG to WEBP?

Dimensions are retained by default; optional resizing changes them. Changing the extension alone does not convert the file. Keep a local copy of the original before uploading.

When are files deleted?