Image Compressor
Reduce JPG & PNG file sizes in your browser without uploading to any server. Free, private, no signup.
🖼️ Image Tools
Free
Browser-based
Quality 75%
10Low75High100
Max width
Output format
Why Compress Images?
Large images are the single biggest cause of slow websites. A 4 MB photo from your phone delivers the same visual experience as a 200 KB compressed version on screen — but takes 20× longer to load. Google's Core Web Vitals penalises slow pages, so image compression is one of the highest-ROI SEO improvements you can make.
Recommended Quality Settings
| Use Case | Quality | Expected Size Reduction |
|---|---|---|
| Web photos / hero images | 75–80% | 60–80% |
| Product images | 80–85% | 50–70% |
| Thumbnails & previews | 65–75% | 70–85% |
| Images with text / logos | 85–90% | 40–60% |
| Email attachments | 70–75% | 65–80% |
Compress Images Without Losing Quality
The key is combining quality reduction with dimension scaling. A 5,000 px wide photo only needs to be 1,920 px for a full-width website banner. Set Max Width to 1920, Quality to 80%, and you will typically cut file size by 85% with no perceivable difference on screen.