All Guides

How to Compress an Image Without Losing Quality

Large image files slow down websites, bounce off email attachment limits, and eat up storage. Compressing an image reduces its file size, usually with little to no visible quality loss when done at a sensible quality level. This tool shows you a live preview of the resulting file size as you adjust quality, so you can find the right balance before downloading.

  1. 1Open the Compress Image tool.
  2. 2Choose your image. JPG, PNG, WEBP, and HEIC are all supported.
  3. 3Pick JPEG or WEBP as the output format for real compression (PNG is lossless and won't shrink much).
  4. 4Drag the quality slider and watch the live size estimate update.
  5. 5Click "Compress Image" to download the result.
Open Compress Image

Frequently asked questions

Why doesn't PNG compress much?

PNG is a lossless format by design, so it can't trade quality for smaller size the way JPEG or WEBP can. For real size reduction, convert to JPEG or WEBP instead.

What quality setting should I use?

Around 70 to 80% is usually the sweet spot: noticeably smaller file size with quality loss that's hard to spot at normal viewing sizes. The live preview lets you judge it yourself before downloading.

Can I compress a HEIC photo from my iPhone?

Yes, HEIC photos are decoded automatically and default to JPEG output, since that's where real compression happens.