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Image Compressor

Compress your images to a target quality or a target file size. Everything runs in your browser — nothing is uploaded.

Shrink image file size while keeping the quality you need.

Part of the Toolz collection — free browser-based utilities.

100% free · No sign-up · No daily limits · No watermarks · Processed in your browser — files never leave your device

UNDERSTAND YOUR RESULTS

Image Compressor guide

Image Compressor: Select images, confirm the preview, choose quality or size mode, process and download.

How to use this tool

  1. Select images, confirm the preview, choose quality or size mode, process and download.
  2. Check the displayed feedback and compare the result with your original input.
  3. Copy or download using the tool’s controls. Keep your original until you have checked the output.

A worked example

Compare an original photo with its compressed result before keeping the smaller copy.

How it works

Select images, confirm the preview, choose quality or size mode, process and download.

Frequently asked questions

What should I check before using the output?

Lossy quality settings can soften detail; an exact target size is not always attainable.

What if a file or action is unsupported?

Check the input format and any visible error, try a smaller test case, and confirm the browser supports the required feature. Do not treat an empty output as a successful result.

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