Select one or many PNG images — they are converted to WebP on your device, never uploaded.
PNGs are crisp but heavy. Converting them to WebP typically cuts file size by a quarter or more — this tool does it in your browser, in bulk, for free.
We believe in privacy first. By leveraging HTML5 Canvas and native browser APIs, your images are converted on your device. Zero files are uploaded to our servers, ensuring your data remains yours.
Stop wasting time converting files one by one. Drag and drop dozens of images into the work area and convert them all at once with incredible speed.
Tweak the quality slider to find the perfect balance between visual fidelity and file size reduction. Works perfectly for both WebP and JPG outputs.
Need WebP? Convert JPG or PNG. Need JPG? Convert your WebP format images quickly. Flexibility to shift between next-gen and legacy formats in seconds.
PNG is a lossless format that excels at screenshots, logos, and graphics with sharp edges — but its files are large. WebP, developed by Google, offers both lossless and lossy compression and produces files that are typically 26% smaller than equivalent PNGs in lossless mode, and far smaller in lossy mode, while preserving transparency (alpha channel).
Smaller images mean faster page loads, better Core Web Vitals, and lower bandwidth bills. Every modern browser supports WebP, so for websites there is rarely a reason to ship PNGs anymore. This converter reads your PNGs with your browser's own decoder and re-encodes them locally — files never leave your device, and it even works offline.
Transparency is preserved: a transparent PNG becomes a transparent WebP. If you need maximum compression for photos, lower the quality slider; for graphics and UI assets, higher quality settings keep edges crisp.
Drag and drop one or many PNG files into the dropzone — batch conversion is supported.
The output format is already set to WebP. Switch it any time if you need JPG instead.
80% is a great default for photos; use 90–100% for logos, screenshots, and UI graphics.
Click 'Convert & Download All' and save the smaller WebP files to your device.
Yes. WebP fully supports an alpha channel, so transparent areas of your PNG stay transparent in the converted WebP file.
Lossless WebP is typically ~26% smaller than PNG. With lossy compression at 80–90% quality, savings of 50–80% are common for photographic content with no visible difference.
That's up to you. At 100% quality the conversion is essentially visually lossless; lowering the slider trades some fidelity for much smaller files. For sharp-edged graphics, stay at 90%+.
No. The conversion runs entirely in your browser using the HTML5 Canvas API. You can disconnect from the internet and it still works.
Yes — Chrome, Firefox, Safari, and Edge have all supported WebP for years. For the rare legacy environment, you can convert back with our WebP to PNG converter.
No registration, no tracking of your content, no server uploads. Don't just take our word for it:
Your files and text are processed entirely on your device. Nothing is ever sent to us.
Once loaded, this tool keeps working with your Wi-Fi turned off. Try it.
Open your browser's DevTools → Network tab. You'll see zero requests carrying your data.
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