Image Compressor

Compress JPG, PNG and WEBP images with a quality slider — batch supported.

No upload

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Processing happens on your device using your browser's CPU/GPU. Results are kept only in this tab's memory and are wiped when you click “Clear” or close the page.

About Image Compressor

Image Compressor re-encodes JPG, PNG and WEBP files at a quality level you choose so they take up far less space. A slider sets quality from 10 to 95 percent, and an optional max width shrinks oversized photos at the same time. Each result shows how much smaller it got, and a total saving is shown at the end. Nothing is uploaded - the compression runs on your own device.

How to use Image Compressor

  1. Add one or more photos, or paste a screenshot with Ctrl+V.
  2. Set the quality slider - 60 to 80 percent looks the same as the original for most photos.
  3. Choose an output format, or leave it on Auto so photos become JPG and transparent images become WEBP.
  4. Optionally enter a max width, such as 1920, to shrink very large camera photos as well.
  5. Click Compress images and download the files individually or as one ZIP.

What people use it for

  • Cutting a folder of 5 MB phone photos down to a few hundred KB before emailing or sending on WhatsApp.
  • Making product and blog images lighter so a small business website loads faster on mobile data.
  • Reducing photos before attaching them to a college assignment or a tender document.
  • Shrinking screenshots collected for a report so the final file stays easy to share.

Good to know

Works on JPG, PNG, WEBP, BMP, GIF and AVIF inputs. Compression is lossy for JPG and WEBP, so pushing quality below about 50 percent will show blocky edges around text and fine detail. If a re-encoded file would end up bigger than the original, the original is kept and marked already optimal. Very large files depend on how much memory your device has.

Frequently asked questions

How much smaller will my image get?
A typical phone photo drops 60 to 85 percent at 70 percent quality with no visible change. The exact saving depends on the picture - flat backgrounds compress far more than busy detail.
Is compression reversible?
No. JPG and WEBP compression throws away detail permanently, so keep your original file. Choose PNG as the output format if you need lossless compression instead.
What does the Auto format option do?
Auto picks JPG for ordinary photos and WEBP for images with transparency, which gives the smallest file without losing a transparent background.
Do you keep or see my photos?
No. The files are read and re-encoded by JavaScript inside your browser tab and never sent to a server. Closing the tab clears them from memory.