PNG to WebP Converter
Convert PNG images to WebP in your browser. WebP is ideal when you need web pages that need smaller images without obvious quality loss, while PNG is better known for pixel-perfect quality plus full alpha transparency.
- Files never uploaded
- Instant, on-device
- Free & no sign-up
Drop PNG files here, or browse
PNGWebP · files stay on your device
up to 40 MB per file · up to 20 files per batch
How to convert PNG to WebP
- Step 01
Add your PNG file
Drop one or many PNG files onto the converter, or browse from disk. Stay within the on-device size limits shown under the drop zone — oversized files are rejected so your tab does not freeze.
- Step 02
Tune and convert
Set quality if the WebP encoder offers it, then start the conversion. Pixels are processed on this device — nothing is uploaded.
- Step 03
Download WebP
Download your new WebP file immediately. Multiple outputs pack into a single ZIP archive.
Why convert PNG to WebP
PNG graphics often carry transparency and sharp edges. WebP can keep that alpha channel while usually cutting file size dramatically, which is why it is popular for UI assets, stickers, and marketing creatives on modern sites.
When to use this tool
- You ship icons or illustrations that need transparency and smaller payloads.
- A design export is PNG but your frontend build prefers WebP.
- You want one format that handles both photos and transparent graphics.
Good to know
- Lossless WebP preserves edges well; lossy WebP may soft-focus tiny text.
- Confirm your target apps accept WebP before deleting the PNG master.
- Animated PNGs are not the same pipeline as still PNG→WebP here.
- Browser limit: about 40 MB per image, up to 20 files per batch. Very large dimensions are scaled down automatically.
- Need a bigger file? For larger images, use a desktop editor (GIMP, Affinity, Photoshop) or ImageMagick, then bring a smaller export back here if you still want a quick format change.
File size limits for PNG to WebP
Browser limit: about 40 MB per image, up to 20 files per batch. Very large dimensions are scaled down automatically.
Why there is a limit
Images are decoded into memory on your device. Huge files can freeze or crash the tab, so we cap size to keep conversions reliable without uploading anything.
If your file is too large
For larger images, use a desktop editor (GIMP, Affinity, Photoshop) or ImageMagick, then bring a smaller export back here if you still want a quick format change.
PNG to WebP FAQ
Common questions about converting PNG files to WebP.
Is this PNG to WebP converter free?
Yes. Browser Convert does not charge for PNG → WebP, add watermarks, or require an account.
Will PNG to WebP keep image quality?
WebP may use lossy compression, so pick a higher quality setting when edges and text matter. PNG sources that were already heavily compressed cannot regain lost detail.
Does WebP support transparency from PNG?
WebP can store transparency. If your PNG had no alpha channel, the result stays opaque unless you edit it afterward.
Is PNG to WebP conversion private on Browser Convert?
Yes. Your PNG image is processed in the browser. We do not upload the file to convert it, which is the main difference from typical online converters.
Are there file size limits for PNG to WebP?
Yes. Browser Convert accepts about 40 MB per file, with up to 20 files queued at once. Images are decoded into memory on your device. Huge files can freeze or crash the tab, so we cap size to keep conversions reliable without uploading anything. Very high-resolution images may be downscaled (about 40 megapixels / 8192px on the longest edge) so canvas encoding stays stable. If your file is larger, For larger images, use a desktop editor (GIMP, Affinity, Photoshop) or ImageMagick, then bring a smaller export back here if you still want a quick format change.
Can I convert several PNG files to WebP at once?
Yes. Queue up to 20 PNG files and convert them in one pass. When finished, download the batch as a ZIP. Very large batches may need to be split so your browser stays responsive.