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PNG to WebP is the web-performance conversion: WebP files run dramatically smaller than equivalent PNGs while keeping transparency, and every modern browser supports them. The quality slider lets you choose between visually-lossless (90%+) and aggressively small. Conversion runs locally with live before/after sizes.
Frequently asked questions
How much smaller will WebP be?
For photographic PNGs, often 70–90% smaller (PNG is a poor photo format). For graphics and screenshots, 25–50% is typical at high quality. The per-file size readout shows your actual numbers.
Is WebP safe to use everywhere now?
On the web, yes — universal browser support since 2020. For email attachments, print workflows and older desktop software, JPG or PNG remain safer.