Convert PNG to WEBP

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convert . png to . webp

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If you want to optimise images for the web, WEBP is now virtually unavoidable. Developed by Google, this file format combines the strengths of PNG and JPG, whilst outperforming both in terms of file size. Particularly when converting unoptimised PNG files, impressive results can be achieved. Google therefore consistently recommends its own format in its Lighthouse audits^[1] and PageSpeed insights, and with good reason.

Why convert PNG to WebP?

PNG files offer lossless quality and transparency, but are often quite large. Whilst quantisation of PNG files can save a significant amount of file size, this is only very effective for graphics. When transparency is required in photographs, even optimised PNGs are often huge compared to JPGs. This is where WEBP comes into its own: just like PNG, WEBP supports an alpha channel for transparent backgrounds. Typically, such WEBP files are 25 to 35 per cent smaller than comparable PNGs, with virtually identical image quality.^[2] When it comes to lossless compression, WebP achieves particularly good results compared to PNG.^[3]

For website operators, this means: faster loading times, lower traffic and better Core Web Vitals. The LCP (Largest Contentful Paint) score benefits directly from smaller image files – and this is a direct ranking factor for Google.

Browser support for WebP files

Whilst WebP was initially only supported by Chrome and Opera, all major browsers have now (2026) followed suit. According to caniuse, global browser support stands at over 97 per cent.^[5] Safari has supported WebP since version 14 (macOS Big Sur / iOS 14), Firefox since version 65, and Edge also displays WebP images without any issues.^[3] Converting PNG to WebP is therefore perfectly feasible for modern web projects.

Convert PNG to WEBP easily online

With our converter, you can convert your PNG files to WebP quickly and easily. Simply follow the instructions below.

Sources

[1] Google Chrome Developers: Serve images in modern formats
[2] Google Developers: WebP FAQ
[3] Wikipedia: WebP
[4] CanIUse: WebP image format

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Last updated on April 5, 2026 by Sören Ramspeck with the experience of more than 128,437,330 converted files since 2013.

How to convert PNG to WEBP online?

Upload PNG file Choose your PNG file with the "Choose File" Button, Drag & Drop or import it directly from Dropbox/Google Drive.
Choose target filetype WEBP is set as default target format. Change it if you need a different target filetype for your conversion.
Start Conversion Click "Start Converting!". Most files process in seconds, only the largest files may take a few minutes.
Download your WEBP file Download your finished WEBP file. Your files will be automatically deleted from our servers.

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Currently we support the following conversions with PNG files:

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Information about the extensions for the conversion from PNG to WEBP

From: PNG

lossless image format with transparency

One of the more popular graphical formats for web design, Portable Network Graphics (PNG) is a non-patent licensed image file format which supports lossless data compression. It was first released in 1996, and was developed as an enhanced version of …

File extension: .png
More information and converters for PNG

To: WEBP

a modern web image format with good compression

If you want to make your website faster and faster, or if you want to save bandwidth when uploading images, you can use WebP. The Google image standard is an alternative to JPG and PNG and has various advantages and uses standards such as RIFF as a b …

File extension: .webp
More information and converters for WEBP

Video-Tutorial: Convert PNG to WEBP

File-Converter-Online.com converts your files for free – no registration, no installation, no watermarks. Works on any device - Windows, macOS, Linux, Android and iOS. The free version supports files up to 750 MB, with Premium up to 20 GB. Our servers are located in Germany, all files are encrypted during transfer and automatically deleted after conversion. Since 2013, we have converted over 128,437,330 files - if you have any questions or issues, you can reach us anytime via the contact form.