Convert PNG to WEBP - Free Online Image Converter
Convert PNG images to WEBP format in your browser. Drag, drop, and download - no upload to servers, no signup needed. Batch conversion available on paid plans. WEBP output is ~30% smaller than JPG at the same visual quality.
Convert PNG to modern WEBP - smaller files with transparency intact.
or drop pngs here
100% Private
Instant Processing
Browser-Based
Features
Convert PNG images to WEBP in one click
100% browser-based - no upload to servers
Batch conversion on paid plans (multiple files into a ZIP)
Preserves original resolution and aspect ratio
Modern WEBP compression - ~30% smaller than JPG
Works on any device - desktop, tablet, or phone
No watermarks on output files
How It Looks
Before
After
How It Works
1
Drop your PNG file into the workspace, or click to browse
2
WEBP is pre-selected as the output format
3
Click Convert to process entirely in your browser
4
Use the Download button to save - single file, or ZIP for batches
Common Use Cases
Convert PNG screenshots and photos to WEBP for broader compatibility
Reduce image file size for faster web pages by re-encoding to WEBP
Batch-convert a folder of PNG files to WEBP in one pass
Preserve image quality while changing format from PNG to WEBP
Frequently Asked Questions
Are my PNG images uploaded to a server?
No. All conversion happens in your browser using the Canvas API. Your images never leave your device.
How is the output quality?
WEBP output is ~30% smaller than JPG at the same visual quality.
Can I batch-convert PNG files?
Yes - on paid plans. Drop multiple files and they're processed in parallel, then packaged into a ZIP. Free Starter is limited to one file per conversion.
Why use this instead of a different PNG-to-WEBP site?
PDFSub does the conversion in your browser - the images never touch our servers. Most online converters upload your files. Yours stay on your device.
Can I convert in other directions?
Yes - try the unified Image Converter, which lets you mix-and-match any of JPG, PNG, WEBP, HEIC, BMP, and TIFF inputs with JPG, PNG, or WEBP output.