CalcBrew

Image Converters

PNG to WebP

Make site images lighter without losing transparency: WebP lossless is ~25 % smaller than PNG and lossy WebP is often 70 % smaller with no visible change.

Runs in your browser — files never leave your device.

Drop PNG files here

or click to browse · paste from clipboard · up to 100 MB each

Select files
Options

Higher quality means a larger file. 80–90 is invisible in most photos.

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Why convert PNG to WebP

Page speed scores penalise heavy PNGs. WebP is supported by every current browser, keeps the alpha channel, and Google’s own PageSpeed tool recommends it. Converting is the single biggest image-weight win for most sites.

Choose lossless for logos, icons and UI graphics (pixel-identical) and lossy for photos and illustrations (much smaller, tiny quality trade-off).

How it works

  1. Drop PNG file onto the box above, click it to browse, or paste from the clipboard.
  2. Adjust the options if you need to — the defaults suit most cases.
  3. Press Convert. The work happens on your device, so speed depends on your computer or phone.
  4. Download the WebP — individually or all at once.

About the formats

PNG · Portable Network Graphics · .png

Lossless image format with transparency, ideal for screenshots, logos, icons and graphics with sharp edges or text.

  • PNG is lossless: every pixel is preserved, which is why photos saved as PNG are 5–10× larger than JPG.
  • Supports an 8-bit alpha channel, so edges can be partially transparent.
  • Most browsers and apps have supported PNG since the late 1990s.

WebP · WebP image · .webp

Google’s web image format: 25–35 % smaller than JPG at the same quality, supports transparency and animation, but not every desktop app can open it.

  • WebP has both lossy and lossless modes, and both support transparency.
  • All modern browsers support WebP; older image editors, Windows Photos before 2020 and many print workflows do not.
  • Right-clicking and saving an image from a website often gives you a WebP file even if the page shows a JPG.

Related conversions

More in Image Converters · All converters

Frequently asked questions