Professional Image Compression

Our free online image compressor uses advanced algorithms to reduce file sizes while maintaining visual quality. Perfect for web optimization, email attachments, and storage management.

Understanding Image Compression

Lossy Compression: Reduces file size by selectively discarding image data. Higher compression = smaller files but potential quality loss.
Quality Percentage: Controls the balance between file size and image quality. Higher values preserve more detail.
Format Selection: Different formats have different compression characteristics and use cases.
Visual Comparison: Always compare original and compressed versions to ensure acceptable quality.

Recommended Quality Settings

90-100%: Near lossless quality, minimal file savings (10-30%)
75-89%: Excellent balance, good savings (40-60%) with minimal visible difference
50-74%: Moderate compression, significant savings (60-80%) with slight quality loss
30-49%: High compression, maximum savings (80-90%) with noticeable quality loss
10-29%: Extreme compression for smallest possible files, significant quality loss

Format Comparison

JPEG: Best for photographs, supports high compression with configurable quality
PNG: Lossless format, best for graphics with sharp edges and transparency
WebP: Modern format offering superior compression (25-35% smaller than JPEG)

Professional Compression Tips

Start with 85% quality - this provides excellent savings with minimal quality loss
Use JPEG for photos and PNG for graphics with text or transparency
Consider WebP for modern web applications - it offers the best compression
Zoom to 100% when comparing to check for compression artifacts
Test different quality levels to find the optimal balance for your needs
Keep originals if you might need higher quality versions later

Frequently Asked Questions

Will compression reduce my image dimensions?

No, our compression maintains the original image dimensions. Only the file size and quality are affected.

What's the difference between JPEG and PNG compression?

JPEG uses lossy compression ideal for photos, while PNG uses lossless compression better for graphics and images with transparency.

Can I compress multiple images at once?

Currently, our tool processes one image at a time. For batch compression, you can compress images sequentially.

Is WebP supported by all browsers?

WebP is supported by all modern browsers (Chrome, Firefox, Edge, Safari) but may not work in very old browsers.

Do you keep my images after compression?

No. All image processing happens directly in your browser. Your images are never uploaded to our servers, ensuring complete privacy.

Common Compression Scenarios

Website Hero Images: 70-85% quality for good balance of quality and performance
Product Photos: 80-90% quality to maintain detail while reducing size
Social Media Posts: 60-75% quality for fast loading without noticeable quality loss
Documentation Screenshots: PNG format with minimal compression to preserve text clarity
Email Newsletters: 50-70% quality to meet attachment size limits