How to Compress Photos for Websites
Learn how to optimize and compress web images to improve page load speed, Core Web Vitals, and user experience.
Why Image Compression Matters for Web Performance
Unoptimized images are the single largest contributor to slow website page load speeds. Large image files increase bandwidth usage, slow down mobile browsing performance, and negatively impact Google Core Web Vitals metrics such as Largest Contentful Paint (LCP).
Optimizing website images involves selecting modern WebP or JPEG encodings, scaling pixel dimensions to match actual display containers, and removing embedded EXIF data.
Recommended Target Sizes by Web Image Type
Follow these benchmark target sizes for web performance:
| Image Type | Recommended Max Width | Target File Size | Ideal Format |
|---|---|---|---|
| Hero / Banner Backgrounds | 1920 px | 120 KB - 200 KB | WebP or Compressed JPG |
| Article Body Images | 800 px | 40 KB - 80 KB | WebP or Compressed JPG |
| Card Thumbnails | 400 px | 15 KB - 30 KB | WebP |
| Icons & Logos | 200 px | 5 KB - 15 KB | SVG or PNG |
Step-by-Step Web Image Optimization Workflow
Follow this workflow to prepare images for web publication:
- 1Scale Resolution: Downscale raw camera dimensions to display container limits (e.g. 1920px or 800px).
- 2Remove EXIF Metadata: Strip camera metadata and thumbnail previews.
- 3Convert to WebP: Export as WebP format for 25% to 34% smaller file weight.
- 4Apply Quality Compression: Maintain quality around 80% for visual fidelity.
- 5Batch Process: Use bulk tools to compress image folders efficiently.
Compress multiple web images in batch directly in your browser with instant ZIP download.
Frequently Asked Questions
Ready to Prepare Your Photo?
Use 20KB Photo online tools to resize and compress photos directly in your browser.
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