How to Compress an Image Without Making It Look Bad
A straightforward workflow for shrinking JPG, PNG, and WebP images while keeping useful visual quality.
Quick answer
To compress an image, open the Image Compressor, select your file, choose a quality level, and compare the result at normal viewing size. Moderate quality is usually enough for web and social use.
Why image files get large
Image dimensions, color information, transparency, and compression settings all affect file size. A modern camera photo can be several megabytes even when it looks ordinary on a phone screen.
Choose a sensible quality level
For most web and social uses, moderate JPEG or WebP quality is enough. PNG is useful when you need transparency or sharp graphics, but photographic PNGs can be unnecessarily large.
A simple compression workflow
Follow these steps for a reliable result with any image.
- • Resize the image to the largest size it will actually be displayed at.
- • Pick the right format for the content: photo or graphic.
- • Compress at a moderate quality first.
- • Compare the output with the original and adjust if needed.
Compare before downloading
After compression, compare the file size and visually inspect the output at normal viewing size. Look around faces, text, edges, and gradients for artifacts. The goal is not the lowest possible number; it is an efficient file that still looks right for its purpose.
Frequently asked questions
- How much can I compress an image before it looks bad?
- It varies by image. Photos usually tolerate moderate compression well, while images with text, sharp edges, or smooth gradients show artifacts sooner.
- Is it better to resize or compress an image?
- Both help. Resizing to the dimensions you actually need often gives the biggest saving, and compression then reduces the file further.
- Which format should I choose?
- JPG or WebP for photographs, PNG for transparency and crisp graphics. See the format comparison guide for details.