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🗜️ Image Compressor

Compress images to reduce file size

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Drop an image here or click to upload

Supports JPEG, PNG, WebP

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About Image Compressor

Compress your images using the Canvas API. Adjust quality to balance file size and visual quality. Supports JPEG, PNG, and WebP output. Everything runs locally in your browser — your images never leave your device.

How to Use Image Compressor

  1. Upload one or more images (JPEG, PNG, WebP)
  2. Adjust the quality slider to control compression level
  3. Preview the compressed result side by side with original
  4. Check the file size reduction percentage
  5. Download compressed images individually or as a ZIP

About Image Compressor

Image compression is critical for web performance — images typically account for 50-75% of a webpage's total size. A 5MB hero image that could be 200KB with proper compression adds seconds to load time, consuming bandwidth and frustrating users. This compressor reduces image file sizes while maintaining visual quality using advanced algorithms. JPEG compression removes imperceptible details (lossy), PNG compression eliminates redundant data (lossless), and WebP offers superior compression for both. Google's PageSpeed Insights penalizes unoptimized images, directly affecting SEO rankings. All processing happens in your browser using Canvas API — your images never leave your device.

Frequently Asked Questions

What quality setting should I use?

For web: 75-85% quality is the sweet spot — typically 60-80% size reduction with minimal visible difference. For photography portfolios: 85-95%. For thumbnails: 60-70%. Always compare visually before committing.

What's the difference between lossy and lossless?

Lossy (JPEG, WebP lossy) permanently removes data for smaller files — you can't get the original back. Lossless (PNG, WebP lossless) preserves every pixel but achieves less compression. Use lossy for photos, lossless for graphics with text or sharp edges.

Should I use WebP instead of JPEG?

WebP offers 25-35% smaller files than JPEG at equivalent quality. All modern browsers support it. Use WebP with JPEG fallback for older browsers via the element.

Does compression affect SEO?

Indirectly, yes — page speed is a Google ranking factor, and images are the biggest contributor to page weight. Compressing images improves Core Web Vitals scores, particularly LCP (Largest Contentful Paint).

Can I compress images in bulk?

Yes — this tool supports multiple file uploads. For automated bulk compression in your workflow, consider build tools like imagemin, sharp, or Cloudflare's auto-optimization.

Related Tools

Image Resizer → Image Cropper → Image to Base64 → Favicon Generator →