Convert PNG to WEBP
Quietly. In your browser. No upload.
Drop your .png file
or click to browse · max 50MB
or paste with ⌘V
WebP is the format that splits the difference between PNG and JPG: it supports transparency like PNG and compresses like JPG, often producing files 25–35% smaller than equivalent PNGs without visible quality loss. Converting PNG to WebP is the right choice when you're optimizing images for the web — every modern browser has supported WebP since 2020 — and you want smaller files without giving up the alpha channel.
When you'd use it
Shrink images for faster sites
Page-load time is a Google ranking signal. Replacing PNG assets with WebP typically cuts image weight by a third without anyone noticing the change visually.
Keep transparency, lose the bulk
PNG was your only option when you needed transparency. WebP supports it too, and at a fraction of the file size — the best of both worlds.
Optimize design assets
Logos, icons, and UI screenshots stored as PNG often double in size when they shouldn't. Re-encoding to WebP at quality 90+ usually preserves the design intent while halving disk space.
How it works
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Your file never leaves the browser.
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Conversion runs locally via WebAssembly and Canvas.
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Download. No account, no history.
Technical notes
WebP supports both lossy and lossless modes; this converter uses the browser's Canvas API, which produces lossy WebP at the quality you've set. For pixel-perfect transparency on logos and line art, consider keeping PNG; for photographs and most UI assets, WebP at quality 90 is visually indistinguishable from PNG. Browser support is now near-universal — Safari joined in 2020 with macOS Big Sur — but very old applications and some email clients still don't recognize the format, so check your delivery target before committing.
Frequently asked
What happens to my PNG files?
Nothing leaves your browser. The conversion runs locally on your device using WebAssembly and the Canvas API. No file is uploaded to a server — including ours.
Is the converted WEBP identical to the original?
WEBP is a lossy format. The output is visually very close to the original at quality 90+ and considerably smaller. Use the quality slider above to trade size for fidelity.
Is there a file size limit?
There is no hard cap, but very large files (hundreds of MB) may be slow on older devices because everything happens in your browser's memory.
Do you collect data on my file or my use?
Your file is invisible to us — it never leaves your browser. For aggregate page-view counts we use Cloudflare's server-side edge logs (no JavaScript beacon runs in your browser). We display Google AdSense ads on conversion result pages; the AdSense script loads on every page and may set advertising cookies after you accept the consent banner (Google Consent Mode v2 asks first). The ads see the page URL and standard browsing signals — they never see your file, because the file never leaves your device.
Will the WebP look the same as the PNG?
At quality 90 and above, yes — the difference is invisible at normal viewing sizes for most images. For images with very fine line work or large flat color areas, you may want to bump quality to 95+ or stay with PNG.
Is WebP supported everywhere yet?
All current browsers support it, including Safari since 2020. Most desktop image tools support it. Some older apps and certain corporate workflow systems still don't, so check before replacing PNGs in places where the file might be opened by an unknown tool.