Image Tips

How to Compress Images Without Losing Quality (2026 Guide)

Learn the settings that cut image size by 60–80% while keeping photos sharp — for websites, email and social media.

How to Compress Images Without Losing Quality
On this page
  1. Why compress images?
  2. Lossy vs. lossless compression
  3. Step by step
  4. Pro tips

Why compress images?

Images are usually the heaviest part of a web page. Smaller images load faster, rank better in Google (Core Web Vitals), use less mobile data and are easier to share by email.

Lossy vs. lossless compression

Lossless compression removes redundant data without changing a single pixel. Lossy compression discards details the eye barely notices, which produces much smaller files.

Format Best for Recommended quality
JPG Photos 75–85
PNG Logos, screenshots Lossless
WebP Everything on the web 75–80

Step by step

  1. Open the Image Compressor.
  2. Drop one or more images into the box.
  3. Choose a quality between 75 and 85 and compare the preview.
  4. Download the optimized files individually or as a ZIP.

Pro tips

  • Resize before you compress — a 4000 px photo shown at 1200 px wastes bandwidth.
  • Strip metadata (EXIF) to save space and protect your location privacy.
  • Convert to WebP when your platform supports it.

Written by ToolCMB Team

We build fast, free and private browser tools — and write practical guides on how to use them.