TeraConvertTeraConvert

Convert PNG to WebP

A PNG to WebP converter that runs in your browser. Nothing is uploaded, and your files never leave your device.

Conversion Successful
100% local. Your file is processed in this tab and never uploaded.

How to Convert PNG to WEBP

  1. 1

    Drop your PNG file

    Drag it into the converter above, or click to browse. Nothing is uploaded.

  2. 2

    Adjust settings (optional)

    Crop, resize, rotate, or set quality from the sliders icon.

  3. 3

    Convert and download

    WEBP is preselected. The file converts in this tab and downloads when done.

Why Convert PNG to WEBP?

PNG files can be 3-5x larger than equivalent WebP files at the same visual quality.

Converting to WebP cuts bandwidth on web pages, improves Google Core Web Vitals LCP scores, and reduces CDN costs without visible quality degradation for most content types.

PNG
WEBP
Compression
Lossless
Compression
Lossy or lossless
Transparency
Yes (alpha channel)
Transparency
Yes
Max colors
16.7 million + alpha
Max colors
16.7 million
Animation
No (APNG rare)
Animation
Yes
Browser support
Universal
Browser support
97%+ (modern browsers)
Typical use
Graphics, screenshots
Typical use
Web images

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Frequently Asked Questions

Is WebP supported in all browsers?
WebP is supported in all major browsers including Chrome, Firefox, Safari (since 14), and Edge. Over 97% of global web users can display WebP natively.
Does WebP support transparency like PNG?
Yes. WebP supports alpha channel transparency. Your transparent PNG regions will be preserved exactly in the converted WebP file.
Will my image look noticeably different in WebP?
At quality 80 or higher, WebP is visually indistinguishable from the source PNG for most images. Lower quality settings show subtle differences on sharp text and edges.
Should I keep the original PNG after converting?
Yes, always keep the original PNG. WebP with lossy encoding is irreversible, and you may need the lossless source for future edits.
Is my file private?
Yes. The conversion runs in your browser tab and nothing is uploaded, so your files never leave your device. The only limit is size: 25 MB for this format. Bigger files route to the desktop app.

Optimizing a large image gallery for web?

TeraConvert Desktop batch-converts your image assets to WebP in one go, ready for your next deploy.

Get TeraConvert for MacThis format runs in the Mac app. One-time Pro purchase, 14-day money-back guarantee.