Convert PNG images to modern WebP format for free. Maintain transparency with smaller file size.
Upload PNG Files
Select PNG files to convert to WebP
Supported formats: PNG
Paste (Ctrl/⌘+V) or drop an image — or import from a URL
PNG to WebP Features
• Preserves PNG transparency
• Modern compression algorithm for better efficiency
• Small file size saves storage space
• Perfect for website optimization
Convert PNG images to WebP and preserve full transparency while slashing file size by up to 35 %. Image Machine re-encodes your PNG locally in the browser — no upload, no watermark, no sign-up — delivering WebP's modern compression to graphics, icons, and illustrations that can't afford to sacrifice their alpha channel.
How It Works
Choose a tool
Pick from 120+ tools to resize, convert, compress, or enhance your image.
Upload & edit
Drag and drop your image and adjust the settings. It stays on your device.
Download
Save your result instantly — no watermark, no sign-up required.
Why Image Machine?
Your files never leave your device
All processing runs locally in your browser. Your images are never uploaded to a server.
Completely free
Every tool is free, with no limits, no watermarks, and no hidden costs.
Lightning fast
No upload waiting — your images are processed instantly on your own device.
Professional quality
Pixel-perfect output with full control over format, size, and quality.
Frequently Asked Questions
Does WebP support transparency like PNG does?
Yes. WebP supports a full alpha channel just like PNG, so converting from PNG to WebP preserves every transparent pixel. You get the significant size savings of WebP's modern codec without sacrificing any transparency in your graphics or UI assets.
How much smaller will my PNG be after converting to WebP?
WebP typically beats PNG by 25–35 % in file size. For graphics, logos, and UI assets with large areas of flat color or transparency, the savings can be even more dramatic than for photographic content.
Will converting a PNG with sharp text or fine lines to WebP blur them?
At high quality settings, text and sharp edges stay crisp in WebP. For web display, WebP at 90 %+ quality is virtually indistinguishable from PNG. If you need absolute zero compression artifacts, keep the original lossless PNG as your master file.
Can I use a WebP file on my website instead of PNG?
Yes — WebP is designed for the web and supported by all modern browsers including Chrome, Firefox, Safari, and Edge. For the small percentage of older browsers, serve the original PNG as a fallback using an HTML picture element.
Is any of my image data sent to Image Machine's servers?
No image data ever leaves your device. The entire PNG-to-WebP conversion runs inside your browser using local processing, so sensitive designs, UI assets, and brand graphics stay completely private.