Toolwren

Free Image Compressor

Make image files smaller for websites, email and forms. Pick a quality level, compare the before and after size, and download the result.

Your data stays on your device.

Features

  • Works with JPG, PNG and WebP
  • Shows original size, new size and percentage saved
  • Live preview before you download
  • Runs on your device, so the image is never uploaded

How to use Image Compressor

  1. Choose or drop an image.
  2. Pick the output format and quality.
  3. Check the preview and the size saved.
  4. Download the compressed image.

Frequently asked questions

Are my images uploaded to a server?

No. The compression runs in your browser using your own device. The file never leaves your computer or phone.

Why did my PNG barely get smaller?

PNG is a lossless format, so there is little to remove. Switch the output format to WebP or JPG to get a much smaller file.

Which quality setting should I use?

Around 70 to 80 percent is a good balance for photos. Go lower for thumbnails and higher when the image has fine detail or text.

Is there a file size limit?

There is no fixed limit. Very large images can be slow on older phones because all the work happens on your device.

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