Convert PNG to WebP
Swap heavy PNG files for WebP on your website without losing transparent backgrounds. Logos, icons, UI screenshots and cut-out product images all keep their alpha channel.
- On-device
- No sign-up
- Batch
- Free, no watermark
Drop images on the plate
or paste with Ctrl/⌘ V
Processed on this device
How it works
- 01Drop, choose or paste your PNG files.
- 02Set the WebP quality, starting from the default of 85.
- 03Select Process and check sizes and transparency in the previews.
- 04Download each WebP file, or use Download all for a ZIP.
Why use this tool
Transparency stays intact
Unlike JPG, WebP supports an alpha channel, so logos and cut-out images keep their transparent edges on any background.
Smaller than PNG
WebP’s compression usually makes graphics and screenshots lighter than PNG, especially when the image contains photographic content.
No upload needed
Unreleased designs and client assets are converted in your browser tab and never sent to a server.
Supported formats
Use cases
Transparent product cut-outs
Product photos on transparent backgrounds are huge as PNG. As WebP they keep the cut-out edges and load much faster on category pages.
Documentation screenshots
A help center uses dozens of PNG screenshots. Converting to WebP shrinks them while keeping interface text readable at a high quality setting.
Web app UI assets
Illustrations and badges with soft shadows need transparency. WebP keeps the alpha channel and cuts the bytes users download.
Technical details
PNG is lossless, while this conversion uses lossy WebP with a quality slider (default 85). The transparent and semi-transparent pixels are preserved, so drop shadows and anti-aliased edges still blend correctly. Photographic PNGs see the largest savings. Flat graphics with few colors often shrink less, and very sharp text can show slight softening at low quality, so keep quality high for screenshots.
Keep the original PNG as your editable master, since WebP re-encoding is lossy and repeated conversions add up. If you only need a smaller file and must keep the PNG format, color quantization in a PNG compressor is an alternative that preserves transparency. Colors are converted to sRGB, and any metadata stored in the PNG is not copied to the WebP. For a step-by-step walkthrough, see how to convert PNG to WebP.
Your files stay with you
This tool runs entirely inside your browser using Web Workers and WebAssembly. Your images are never uploaded, never stored on a server and never used to train AI. Close the tab and they’re gone. Learn more
Frequently asked questions
Does WebP support transparency like PNG?
Yes. WebP has a full alpha channel, so transparent backgrounds, soft shadows and anti-aliased edges carry over from your PNG. This is the main reason to choose WebP over JPG for logos and cut-out images on a website.
Will my PNG lose quality as WebP?
A little, because this converter uses lossy WebP. At the default quality of 85 graphics and photos look nearly identical. Fine text in screenshots is the first thing to soften, so raise the quality slider if you notice it.
Why is my WebP not much smaller than the PNG?
Simple graphics with a few flat colors already compress well as PNG, so there is less to gain. Photographic or gradient-heavy PNGs show the biggest savings. Lowering quality helps, but check the preview for text sharpness.
Should I use WebP or PNG for a logo?
On a website, WebP usually gives a smaller file with the same transparency. Keep the PNG for design work, email signatures and tools that don’t accept WebP. If you have the logo as SVG, that’s often best for the web.
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Convert from PNG
Convert from WebP
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