Tool
PNG to WebP Converter
Drop a PNG and get a smaller WebP file back. Use the quality slider to control file size. Transparency is preserved.
Drop a PNG file here, or click to browse
Convert PNG to WebP in three steps
No software to install. Works in any browser, on any device.
Upload your PNG
Drop or click. Any PNG file works.
Convert to WebP
Instant conversion in your browser. No server, no waiting.
Download the WebP file
Your smaller image is ready immediately.
Converting
Better than PNG for photos
WebP beats PNG file sizes for photographic content by 25-50%.
Transparency supported
WebP supports transparent backgrounds, just like PNG. No background filling needed.
100% private
Canvas API conversion in your browser. Nothing uploaded.
About PNG to WebP Conversion
WebP is a modern image format developed by Google that produces significantly smaller files than PNG. A lossless WebP image is typically 26% smaller than the same PNG. A lossy WebP at quality 85 is often 60–80% smaller while remaining visually indistinguishable from the original.
For web use, switching from PNG to WebP is one of the fastest ways to improve page load speed. Google uses WebP file size as a signal in Core Web Vitals, so converting your images can directly improve your Largest Contentful Paint (LCP) score.
Unlike converting to JPG, converting PNG to WebP preserves transparency. If your PNG has a transparent background, the WebP output will too. Set quality to 85–90% for the best balance of file size and visual quality, or go lower for icons and graphics where detail matters less than speed.
Need a different format? JPG to WebP works the same way for JPEG files. PNG to JPG gives you maximum compatibility. Compress Image reduces file size without changing format.
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Frequently Asked Questions
Does WebP support transparent backgrounds like PNG?
Yes. WebP supports full alpha transparency, so converting a PNG with a transparent background produces a WebP with the same transparency intact.
Is WebP always smaller than PNG?
For photos and complex images, yes — significantly. For simple graphics with few colors, the savings are smaller. WebP lossless is still typically 26% smaller than equivalent PNG.
Can I use WebP on my website?
Yes. All modern browsers support WebP. You can use it anywhere you'd use JPG or PNG for web images.
What happens to transparent areas?
They're preserved. WebP supports transparency natively, so your transparent background PNG converts to a WebP with the same transparency.