PNG to WebP Online Free
Convert PNG images to WebP — Google's modern image format that delivers up to 80% smaller files while preserving transparency. Faster websites, same visual quality. No signup required.
Drop your PNG images here
or click to browse — .png files · multiple allowed
PNG · Up to 20 files · Max 50 MB total free
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Conversion Options
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No account required · Files processed securely and deleted in 24h
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Unlock Pro — up to 200 images, 200 MB, lossless WebP batch
Custom encoding method · Animation WebP · Priority queue
How It Works
Convert PNG to WebP in three simple steps
Upload PNG Images
Select one or multiple PNG files from your device. Transparent PNGs, 8-bit indexed PNGs, and 24-bit full-colour PNGs are all supported. Upload up to 20 files, max 50 MB total, on the free plan.
Set Quality & Method
Choose WebP quality (40–100), output size, and encoding method. Quality 80–90 is the sweet spot for web use — noticeably smaller than PNG with virtually no visible quality loss. Transparency is preserved by default.
Download WebP Files
Converted WebP files are named to match your originals. Multiple files are zipped for one-click download. Deploy them directly to your website — all modern browsers fully support WebP.
Why Convert PNG to WebP?
The modern web image format — smaller, faster, just as sharp
Up to 80% Smaller Files
WebP consistently outperforms PNG on file size. A typical PNG logo or UI screenshot converts to WebP at 60–80% smaller with the same visual sharpness at quality 80–90. This directly improves page load times and Core Web Vitals scores.
Transparency Preserved
WebP supports an alpha channel just like PNG — transparent areas in your source PNG are carried over to the WebP output unchanged. This makes WebP a direct drop-in replacement for PNG in logos, icons, UI elements, and design assets.
Lossy & Lossless Modes
WebP supports both encoding modes. At quality 100, the converter uses WebP lossless mode — identical pixel output to the source PNG, but typically 20–30% smaller. At quality 40–90, lossy WebP is used for dramatically smaller files while remaining visually indistinguishable at normal viewing sizes.
Universally Supported
WebP is supported by all major browsers — Chrome, Firefox, Safari (since iOS 14 and macOS Big Sur), Edge, and Opera — covering 97%+ of web users worldwide. It is also supported by Android, iOS, and most modern image editing apps.
Batch Convert 20 PNGs
Upload up to 20 PNG files at once and convert them all to WebP in a single operation. Output files are named to match your originals, bundled in a ZIP archive, and ready to upload directly to your server or CDN.
100% Private & Secure
Files are uploaded over TLS 1.3 and processed in isolated server containers. All uploaded PNGs and converted WebPs are permanently deleted from our servers within 24 hours. We never view, store, or share your files.
Free vs Pro
Frequently Asked Questions
WebP is an image format developed by Google specifically for the web. It uses a more advanced compression algorithm than PNG (based on the VP8 video codec) that can represent the same visual content in a much smaller file. WebP supports transparency (like PNG), lossy compression (like JPEG), and even lossless mode. For typical web images — logos, icons, UI screenshots — WebP is 40–80% smaller than an equivalent PNG, directly improving page speed, bandwidth costs, and Core Web Vitals scores.
Yes. WebP supports full alpha-channel transparency, just like PNG. When "Preserve transparency" is enabled (the default), all transparent areas in your PNG are carried over to the WebP output perfectly — including semi-transparent (partially opaque) pixels. This makes WebP a reliable drop-in replacement for PNG in web design assets like logos and icons.
Quality 80–90 is the recommended range for web use. At these levels, WebP files are typically 50–70% smaller than PNG while remaining visually indistinguishable at normal screen sizes. Quality 90 (our default) is particularly good for images with fine detail or sharp text. Quality 60 is better for photographic backgrounds where some compression is acceptable. Quality 100 enables lossless WebP, which produces pixel-perfect output but smaller files than PNG lossless.
Yes — WebP has had full support across all major browsers since 2021. Chrome, Edge, Firefox, Opera, and Samsung Internet have supported it for years. Safari added full WebP support in Safari 14 (iOS 14 and macOS Big Sur, released in 2020). As of today, WebP is supported by over 97% of web users globally. You can serve WebP directly without needing a fallback for all practical purposes, though you can use an HTML picture element with a PNG fallback if you need to support very old browsers.
Lossless WebP (quality 100) produces pixel-identical output to the source PNG — not a single pixel value differs — but uses a more efficient compression algorithm to make the file smaller, typically 20–30% smaller than PNG lossless. Lossy WebP (quality 40–90) applies a compression algorithm that discards some image data to achieve much smaller files (40–80% smaller), with some subtle quality reduction that is usually invisible at normal viewing sizes. Choose lossless when pixel accuracy is critical; choose lossy for web display where file size matters most.
Yes. Your images are uploaded over a TLS 1.3 encrypted connection and processed in isolated server containers. Both the uploaded PNG files and the converted WebP files are permanently deleted from our servers within 24 hours. We never view, index, or distribute your images under any circumstances.