PNG to WEBP Converter
Drop a PNG file below and get a WEBP back in seconds — converted on your own device, not uploaded anywhere.
Processed entirely in your browser using a Web Worker. Nothing is uploaded.
What is a PNG file?
PNG (Portable Network Graphics) is a lossless raster format built for graphics that need pixel-perfect edges and transparency — logos, screenshots, icons, diagrams. Every pixel survives the save; nothing is approximated the way JPEG does. The tradeoff is file size: a PNG of a photograph is usually much larger than the same photograph saved as JPEG or WebP.
What is a WEBP file?
WebP is Google's 2010 image format, built to replace both JPEG and PNG at once — it supports lossy compression like JPEG, lossless compression like PNG, and transparency, all in one container. At equivalent visual quality it typically produces files 25–35% smaller than JPEG or PNG. Every major browser has supported it since 2020.
How it works
- Drop your PNG file into the box above, or click to choose one.
- Your browser converts it to WEBP instantly, using its own image engine — nothing is sent anywhere.
- Download the WEBP file. That's it.
Other conversions
WEBP to PNG
opening a WebP in software that doesn't support it yet, or archiving it in a universally-readable format
JPG to PNG
adding transparency support, or feeding the image into a tool that expects a lossless format
PNG to JPG
shrinking a screenshot or graphic for email or a page where transparency isn't needed
JPG to WEBP
cutting page weight for photos without a visible quality hit
WEBP to JPG
compatibility with older software, email clients or platforms that don't accept WebP
Questions.
Is my image uploaded to a server?
No. The conversion runs entirely in your browser using the Canvas API — your PNG file never leaves your device.
Will converting to WEBP reduce quality?
No — WebP supports lossless compression, so you can keep exact pixel-for-pixel quality while cutting file size. If you don't need lossless, the default lossy WebP setting still looks close to identical at a fraction of the size.
Is there a file size limit?
No limit is enforced by the tool itself — the practical ceiling is your browser's available memory, which handles typical photos and graphics easily.
Is this really free?
Yes — every format conversion on ByteRivet is free, with no account, watermark or daily limit.
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