Convert PNG to WebP Online for Free

Free

Convert PNG to WebP while preserving transparency. Smaller files, same quality, no upload.

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What's next

Compress WebP
Reduce size further if needed
Convert JPG to WebP
Same conversion for non-transparent JPEGs
Compress PNG first
Or stay in PNG with lossless compression

Settings guide

Choosing between lossless and lossy WebP for PNG conversion:

  • ·Lossless WebP (recommended for logos, icons, text graphics): Every pixel preserved, 26% smaller than PNG.
  • ·Lossy WebP (recommended for photos without transparency concerns): 60–80% smaller than PNG, slight quality reduction.

For transparent logos and UI elements: use lossless. For product photos on white backgrounds being converted for web: lossy at 80–85% quality.

Format comparison

PNG to WebP vs PNG to JPEG: PNG to JPEG destroys transparency — the transparent areas are replaced by a solid white background. PNG to WebP preserves transparency. For web use, WebP is always the better conversion target when transparency matters.

PNG lossless vs WebP lossless: WebP lossless is 26% smaller than PNG with identical quality. On websites serving thousands of images, this savings compounds across bandwidth, CDN costs, and load time.

How it works

1

Upload

Drop your PNG file into the converter — transparent PNG supported.

2

Choose mode

Lossless for graphics and logos; lossy for photos.

3

Convert

The converter produces a WebP file with transparency intact.

4

Download

Save the WebP file — smaller than the PNG, transparency preserved.

About this format

Converting PNG to WebP is the transparency-safe upgrade for web delivery. WebP supports the alpha channel just like PNG — transparent backgrounds, semi-transparent shadows, and gradients all survive the conversion intact. Unlike converting PNG to JPEG, which destroys transparency entirely, PNG to WebP is a clean trade: you keep everything, and the file gets smaller.

WebP lossless is typically 26% smaller than equivalent PNG. WebP lossy — for images where perfect pixel accuracy isn't required — can be 60–80% smaller. For logos, icons, UI graphics, and transparent product photos on the web, WebP is the modern standard.

Drop your PNG, convert, and download. Transparency preserved. Runs entirely in your browser.

Frequently asked questions

Does WebP preserve the transparent background from my PNG?+
Yes. WebP natively supports alpha channel transparency. Your transparent areas, semi-transparent gradients, and drop shadows are preserved exactly after conversion.
How much smaller is WebP compared to PNG?+
WebP lossless is typically 26% smaller than PNG. WebP lossy can be 60–80% smaller, though with some quality reduction in complex areas.
What's the point of converting PNG to WebP if PNG is lossless?+
Smaller file size. WebP lossless is 26% smaller than equivalent PNG. On websites, this directly improves load speed and Core Web Vitals. For transparent logos and icons used on the web, WebP is the modern standard.
Will my WebP be supported everywhere PNG is?+
Not in older software. All modern browsers support WebP. Photoshop CS6 and older, some legacy apps, and Windows 7 Photo Viewer do not. For maximum compatibility, keep both formats.
Can I convert back from WebP to PNG without quality loss?+
Yes, if the WebP was created with lossless compression. If it was lossy-compressed, converting back to PNG will preserve the WebP data exactly but won't recover data discarded during the lossy step.
Are my files uploaded to a server?+
No. Runs locally in your browser.

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