Image compression, in your browser

Drop images. Tune the output. Download.

Adjust quality, format, and dimensions. Each image is compressed in this tab; the original never leaves your device.

Start compressingHow it works
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What it does, in four short notes.

01

Compression runs in this tab.

Each image is processed by the browser using the Canvas API. The original file is not uploaded, and no copy is made on a server.

client-side·no network·no tracking
02

Drop many images. Process them in parallel.

Up to 20 images per batch. Each is handled on its own worker, so a slow file does not block the rest.

03

Output as JPEG, PNG, WebP, or AVIF.

  • JPEGsmallest files, lossy
  • PNGlossless, transparency
  • WebPmodern, balanced
  • AVIFsmallest at high quality
04

Compare the original and the compressed result.

A draggable slider sits over the preview. Move it to see the original on the left and the result on the right, at the same scale.

Original
Compressed

The studio

Drop images, adjust the output settings, and download the compressed result. Everything happens in this tab.

Drop images below to begin.