PNG to WebP Converter
Convert PNG images to smaller WebP files — private, in your browser
Turn PNGs into lighter WebP images
PNG is the go-to format for logos, screenshots, icons and anything that needs a transparent background — but PNG files can get heavy, especially for photographic content. WebP gives you the same crisp graphics and the same transparency while producing a much lighter file, so your pages load faster without visibly changing. This converter rewrites your PNGs as WebP right inside the browser.
Add a single PNG or a whole batch, choose how aggressively to compress with the quality slider, and download one WebP or a ZIP of the lot. Transparency is preserved automatically, and the before/after size is shown for every image so the saving is never a guess.
How to convert PNG to WebP
- Drop your PNG files into the box above, or click to browse for them.
- Pick a quality level — keep it high (90–100) for flat graphics with sharp edges.
- Watch the live preview and the before/after size readout for each image.
- Click Download WebP, or Download all (ZIP) to grab a whole batch at once.
Why convert PNG to WebP?
Lighter pages, identical look
WebP compresses more efficiently than PNG, so image-heavy pages ship fewer bytes and score better on Core Web Vitals — with no visible change to your graphics.
Transparency comes along
WebP carries a full alpha channel, so cut-out logos, UI assets and product shots keep their transparent background instead of gaining a white box.
Nothing leaves your device
The whole conversion happens locally in your browser, which makes it safe for unreleased designs, client mockups and internal screenshots.
Frequently Asked Questions
Does PNG to WebP keep transparency?
Yes. WebP supports a full alpha channel, so transparent areas in your PNG stay transparent after conversion — logos and icons keep their see-through background.
How much smaller will my WebP be?
It varies by image. Flat graphics and screenshots often shrink dramatically, while detailed PNGs may save less. The tool shows the before and after size for every file so you can judge each one.
Are my PNG files uploaded anywhere?
No. Conversion runs entirely in your browser with the HTML canvas, so your PNG files never leave your device — safe for logos, mockups and client work.
Should I use lossy or lossless quality?
The quality slider controls WebP's lossy encoder. For photos and rich gradients, 85–95 looks identical while cutting size; for crisp flat graphics keep it high (95–100) to avoid soft edges.
Can I convert many PNGs at once?
Yes. Drop a whole folder of PNGs and download them together as a single ZIP of WebP images.