FormatSproutWhen it helps
- Optimize transparent website graphics
- Reduce large UI screenshots
- Prepare lighter thumbnails and illustrations
Free online image converter
Convert PNG to WebP Online
Create lightweight WebP assets from PNG graphics while preserving transparency where present.
Transparency preservedStrong web compressionResize while converting
100% privateNo uploads. No signup.
Drop your images here
or from your device
PNG · Up to 20 images · 50 MB eachYour images never leave your deviceEverything is processed locally in your browser—private by design.
PNG to WebP guide
What to expect from this conversion
Lossy WebP can be much smaller, but fine text and flat-color edges should be checked at lower quality settings.
Transparency
Transparent PNG pixels remain transparent in the WebP output.
Quality tip
Use 85–95% for UI screenshots; illustrations and photographs can often use a lower setting.
Simple by design
Three steps. That’s it.
No complicated settings or software to install.
Add your images
Drop files, browse your device, or paste an image from your clipboard.
Choose your settings
Pick a format, adjust quality, and optionally resize your images.
Download instantly
Save files one by one or bundle the whole batch into a ZIP.
Built differentlyFast by nature.
Fast by nature.
Private by design.
FormatSprout uses your browser’s built-in image tools. That means less waiting, no upload bottlenecks, and complete privacy.
See how local conversion worksInstant processing
No server queues. Conversion starts right on your device.
Files stay private
Your photos and graphics are never uploaded or stored.
Free, without limits
No signup, watermarks, or artificial daily quotas.
Popular conversions
Every format you need
JPGPNGTurn JPG photos into lossless PNG files for editing, graphics, and design workflows.JPGWebPCompress JPG photographs into modern WebP files for faster websites and smaller downloads.PNGJPGConvert large PNG graphics or screenshots into compact, widely compatible JPG files.PNGWebPCreate lightweight WebP assets from PNG graphics while preserving transparency where present.WebPJPGMake WebP images compatible with older apps, upload forms, and workflows using universal JPG.WebPPNGTurn WebP files into lossless, editing-friendly PNG images without uploading them.HEICJPGConvert HEIC images to JPG locally in your browser without uploading them.HEICPNGConvert HEIC images to PNG locally in your browser without uploading them.HEICWebPConvert HEIC images to WebP locally in your browser without uploading them.HEICAVIFConvert HEIC images to AVIF locally in your browser without uploading them.JPGAVIFConvert JPG images to AVIF locally in your browser without uploading them.PNGAVIFConvert PNG images to AVIF locally in your browser without uploading them.WebPAVIFConvert WebP images to AVIF locally in your browser without uploading them.AVIFJPGConvert AVIF images to JPG locally in your browser without uploading them.AVIFPNGConvert AVIF images to PNG locally in your browser without uploading them.AVIFWebPConvert AVIF images to WebP locally in your browser without uploading them.
Questions, answered
Frequently asked questions
Everything you need to know about private image conversion.
Does WebP keep PNG transparency?
Yes. FormatSprout preserves transparent pixels when exporting PNG to WebP.
Is PNG or WebP better for websites?
WebP is commonly smaller, while PNG remains useful when lossless pixel accuracy matters most.
Are my images uploaded?
No. FormatSprout converts images locally in your browser. Your files never reach our servers.
Can I convert several images at once?
Yes. Add up to 20 JPG, PNG, WebP, HEIC, or AVIF images and download results individually or as a ZIP.
Ready when you are
Convert images now