Which image formats are supported?

Most modern browsers support JPEG, PNG, and WebP input. Output is generated as JPEG or WebP depending on your selection.

Will compression reduce quality?

Lower quality values make smaller files but can introduce artifacts. Use the preview and file-size comparison to choose the right balance.

WebGenAI

Image Compressor — Compress Images Online

Reduce JPG, PNG, and WebP file sizes locally in your browser. Choose quality, resize large images, preview results, and download the compressed file.

Drag & drop an image, or click to browse

JPG, PNG, or WebP · up to 25 MB · everything stays on your device

OutputQuality: 75%Max width

How to use

Step 1: Choose an image from your device
Step 2: Pick JPEG or WebP output
Step 3: Adjust quality and optional max width
Step 4: Preview the estimated compressed size
Step 5: Download the compressed image

How image compression works

Image compression re-encodes pixels using a selected output format and quality level. Lower quality usually means smaller files, while resizing limits dimensions for additional savings.

Frequently asked questions

No. Images are decoded and compressed inside your browser using local APIs.