tool / imaging

WebP Image Optimizer

Convert images to WebP locally in your browser. Adjust quality and max dimensions, compare file sizes, and download — no server, no uploads.

Back to tools index

Drop images here or browse files

Accepts JPG, PNG, GIF, BMP, TIFF, WebP  ·  up to 20 files

What It Does

Decodes images using a hidden canvas, re-encodes them as WebP using the browser's native canvas.toBlob API, and streams the result directly to a download — no pixels ever leave your device.

Why WebP

WebP delivers 25–35% smaller files than JPEG at equivalent visual quality and supports lossless, lossy, and transparency in a single format. All major browsers have supported it since 2020.

How To Use

  • Drop or select up to 20 image files.
  • Set quality (80 is a good default; lower = smaller file).
  • Optionally set a max width or height to scale images down.
  • Click Convert to WebP and download individually or all at once.