How to use the PNG to WebP Converter
- Choose or drop one or more PNG files.
- Adjust the options if needed — the defaults work well for most files.
- Select Convert. Conversion happens instantly in your browser.
- Preview the results, then download files individually or all at once as a ZIP.
About this PNG to WebP converter
PNG to WebP is the easiest win for website performance: WebP keeps the transparent background of logos and UI graphics while cutting file size substantially. Conversion runs locally with your browser's built-in encoder.
How PNG to WebP conversion works
- Your PNG is decoded with its alpha channel.
- It is re-encoded as WebP at the chosen quality, preserving transparency.
Conversion quality: High fidelity. Lossy WebP keeps transparency and is usually far smaller than PNG.
When to convert PNG to WebP
- Logos, icons and illustrations on websites
- Screenshots in documentation sites
Limitations to be aware of
- WebP at lower quality can soften very fine text in screenshots; use 90%+ for UI captures.
PNG vs WebP
PNG. PNG uses lossless compression and supports full transparency. It is ideal for screenshots, logos and graphics with sharp edges, but photos saved as PNG are much larger than JPG.
WebP. WebP is a modern image format from Google that supports both lossy and lossless compression plus transparency. It is typically 25–35% smaller than JPG or PNG at similar quality and is supported by all current browsers.
This converter also accepts JPG, WebP, GIF, BMP, AVIF, SVG files as input.
Frequently asked questions
Does WebP keep transparency?
Yes. WebP supports an alpha channel, so transparent areas of your PNG stay transparent.
Is the conversion lossless?
This tool uses lossy WebP for maximum savings. At 90–100% quality the result is visually identical for most images.
Are my files uploaded?
No. This tool reads and processes files directly in your web browser. Nothing is sent to Expensico's servers, and the data is discarded when you close or reload the page.