A photo and its PNG to WebP result, which looks the same, with both file formats shown.
Processed output
Source
PNG to WebP

PNG to WebP Converter — Convert PNG to WebP Free Online

PNG keeps your transparency and wrecks your page speed. Convert PNG to WebP and keep both — see the size difference before you download.

  • Keep the transparent background, lose the file weight
  • Lossy or lossless WebP — compare the file sizes side by side
  • Convert one image or a full batch in one run

Drop a PNG here to create a WebP file

Photos that started life as JPG can be converted to WebP with a quality slider, and a WebP that someone cannot open goes back through WebP to PNG with transparency kept. For an upload form that only lists JPG, flatten the PNG onto a solid background as a JPG.

What you can do with PNG to WebP

Review the main capabilities before you begin.

  • Convert PNG images to modern WebP
  • Cut file size 60-80% while keeping transparency
  • Serve lighter graphics for faster page loads
  • Choose lossless mode to preserve exact detail
  • Adjust WebP quality for the right size tradeoff
  • Batch-convert many PNGs in a single pass

Settings reference

Available controls for PNG to WebP.

Settings

Output formatDropdown
Chooses the file type you download. The page opens on its own output format; switch to any other format before converting.Options: JPGPNGWebPAVIFGIFTIFFBMPICOPDF
QualitySliderRange: 20–100 · Default: 90
For JPG, WebP, AVIF and image-to-PDF output: higher keeps more detail but makes a bigger file; 60–80 suits most photos. Documents (Publisher, XPS, EPS…) become PDFs with every page and sharp text, with no quality setting.
Lossless modeOn / Off
For WebP and AVIF output: keeps every pixel exactly (best for logos, graphics and transparency) at the cost of a larger file.
Background fillColor picker
For JPG, BMP and image-to-PDF output, which can’t store transparency: the colour that fills transparent areas (white by default).

Mode

Single file / BatchDropdown
Process one file or a batch with shared settings. Batch results download as one ZIP.Options: Single fileBatch

Popular use cases

Free to use · No signup required · Without watermarkUploads are encrypted in transitRemoved under our retention policy

Frequently Asked Questions

How PNG to WebP helps you get it done

Real problems it solves every day — for businesses, creators, and everyday tasks. Find the use case that fits you and start.

For Developers

Faster Icon & UI Asset Sets

Convert transparent PNG icon sprites and UI assets to WebP to cut page weight while keeping every transparent pixel intact, speeding up app and dashboard load times.

For E-commerce

Storefront Product Image Optimization

Shopify and WooCommerce sellers can convert transparent PNG product cutouts to WebP with the quality slider to pass PageSpeed and Core Web Vitals checks required by modern storefront themes.

On Mobile

App Store Screenshot Compression

Shrink PNG app screenshots and press-kit mockups into small WebP files for app store listing pages and media kits, using Lossless mode when text overlays need to stay perfectly crisp.

Web & SEO

Blog & CMS Featured Image Optimization

Bloggers and content teams on WordPress, Ghost or other CMS platforms convert PNG featured and header images to WebP with the quality slider to pass PageSpeed Insights and Core Web Vitals audits that increasingly penalize unoptimized PNGs.

Watch each transformation land

Every photo crosses the slash untouched and comes out the other side finished.