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Convert PNG to WEBP

Free PNG to WebP converter that runs in your browser. No upload, no signup, no watermark. 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

Four steps. No uploads, no account, no waiting.

1

Upload your PNG file

Drag and drop your PNG file into the converter above, or click to browse and select it from your device. Files stay on your machine and are never uploaded to a server.

2

Select WEBP as the output format

Open the output format picker and choose WEBP. The converter automatically detects the input and only shows compatible output formats for your file.

3

Adjust settings (optional)

Use the sliders icon to crop, resize, rotate, or set the output quality before converting.

4

Convert and download

Click Convert to run the conversion in your browser. The output WEBP file downloads automatically when ready, with no server round-trip and no watermarks.

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

Related Conversions

Other common format conversions you might need.

WebP to PNG
Convert WEBP files to PNG
PNG to JPG
Convert PNG files to JPG
JPG to PNG
Convert JPG files to PNG
SVG to PNG
Convert SVG files to PNG

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 this conversion really free, and is my file private?
Yes. The browser conversion runs entirely on your device using WebAssembly. Files are never uploaded to a server and are discarded from memory when you close the page. There is no file size tracking, no account link to your upload, and no cloud storage.
Do I need to create an account to convert files?
No. The browser converter works without signing in. An optional account is only needed if you want to save favorites, track conversion history, or upgrade to the desktop app with Polar license activation.
How fast is the conversion?
Most browser conversions complete in a few seconds. Large files (over 100 MB) or heavy formats (video, high-page PDFs) take longer depending on your device's CPU and available memory. The desktop app runs significantly faster using native engines.

Convert PNG to WEBP Faster with TeraConvert Desktop

Batch files. No size limits. Native engine. No browser tab.

Batch convertNo size limitsNative speed100% private
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