PNG to WebP

Click or drag PNG files here
Click to upload PNG files
Supports PNG, JPG, WebP, GIF, ICO, BMP, SVG, HEIC, AVIF, TIFF, PDF, PSD, JXL, RAW

Convert PNG images to WebP format entirely in your browser — your files never leave your device. Compared to PNG, WebP maintains full alpha transparency while reducing file sizes by 50% or more for graphics with transparency. It's the best choice for optimizing transparent web icons, logos, UI elements, and design assets. Whether you're building a website, app, or just need smaller transparent images, WebP delivers dramatic savings without losing the transparency you need.

Related

Image Converter

JPG to WebP

WebP to PNG

Image Compressor

Image Resizer

Use Cases

  • Website logos and icons converted to WebP maintain transparency while loading significantly faster.
  • App design transparent buttons and icon assets converted to WebP reduce app bundle size.
  • E-commerce transparent background product images converted to WebP speed up product detail pages.
  • UI elements with shadows and rounded corners on web pages converted to WebP for performance optimization.
  • Transparent PNG assets in presentations and documents converted to WebP in supported environments to reduce file size.
  • Game development UI assets converted to WebP to reduce package size while maintaining transparency.
  • WeChat Mini Program transparent images converted to WebP for faster loading and better performance scores.
  • Infographics and diagrams with transparency in blog posts converted to WebP to reduce page weight.
  • Landing page transparent decorative elements converted to WebP for faster above-the-fold rendering.
  • Comparing PNG and WebP transparent image sizes to evaluate format migration benefits for projects.
  • Providing WebP format transparent images for <img> tags with <picture> element fallback compatibility.
  • Sharing PNG screenshots as WebP for faster sending with no visible quality loss.

How to Use

  1. Click the upload area or drag a PNG image (including transparent PNGs) onto the page.
  2. Decoding and WebP encoding start automatically after file selection.
  3. Wait for the progress bar to complete. Transparent images encode slightly longer than JPG-type images.
  4. Preview the converted WebP dimensions and file size (including compression ratio), then click download.

Features

  • 100% client-side processing: PNG decoding and WebP encoding both happen in your browser — files are never uploaded, protecting privacy
  • Preserves alpha channel: WebP supports transparency — PNG alpha channels are fully retained with no loss
  • Dramatic size reduction: Transparent WebP files are typically 40-60% smaller than equivalent PNGs
  • Lossless compression support: Graphics and icons use lossless WebP for pixel-perfect quality
  • Auto-convert on upload: Select a PNG file and conversion starts immediately — simple, one-step operation
  • Original dimensions preserved: Output WebP matches the exact width and height of your source PNG
  • Compression preview: Shows before/after file size comparison so you can see the space savings

PNG vs WebP (transparent): Why transparent images are better as WebP?

FeaturePNGWebP
Transparency✅ Full alpha✅ Full alpha
Compression algorithmDEFLATEVP8L (lossless)/VP8 (lossy)
Transparent image sizeBaseline40-60% smaller than PNG
Browser support100%97%+
Best forLocal design, full compatibilityWeb/app distribution
Compression efficiencyAverageVery high

FAQ

Will transparent backgrounds be lost when converting PNG to WebP?

No, transparency is fully preserved. WebP natively supports alpha transparency channels. Semi-transparent and fully transparent areas in PNG are retained perfectly with identical visual results.

How much smaller will WebP be compared to PNG?

For logos, icons, and UI screenshots with transparency, lossless WebP is typically 40-60% smaller than PNG. Photo-based PNGs converted to lossy WebP can achieve even greater compression. The results are dramatic and immediately visible.

My PNG is lossless — will WebP conversion reduce quality?

This tool uses lossless WebP compression for graphics-type PNGs, preserving pixel-perfect quality with zero loss. For photo-type PNGs, high-quality lossy compression is used with no perceptible visual difference.

Which browsers support transparent WebP?

Chrome, Edge, Firefox 65+, and Safari 14+ all support transparent WebP, covering over 97% of users. For very old browsers, use the <picture> tag to serve PNG as a fallback alongside WebP.

Are my PNG images uploaded to a server during conversion?

No uploads whatsoever. All processing happens locally in your browser via Web Workers. Your PNG files never leave your device. Processing design files and commercial assets is completely safe.

Will animated PNGs (APNG) retain animation when converted to WebP?

APNG animation will not be preserved. While WebP supports animation, the current tool extracts only the first frame as a static WebP image. For animation needs, consider using GIF or converting directly to animated GIF format.

Can I convert WebP back to PNG after converting?

Yes, use the [WebP to PNG](/image/webp-to-png/) tool to convert back, and transparency will also be preserved. However, it's recommended to keep original PNG files as backups.

Which types of PNG benefit most from WebP conversion?

All PNGs for web and app use benefit from WebP conversion, especially transparent logos, icons, UI elements, and screenshots — these see the highest compression ratios and biggest performance gains.