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Toolisti

Image Compressor

Compress images instantly with our free online image compressor. Reduce file size while maintaining visual quality. Perfect for web optimization, email attachments, and social media. Supports PNG, JPG, and WEBP formats. All processing happens in your browser for complete privacy.

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Upload an Image

Drag and drop your image here, or click to browse

Supported formats: PNG, JPG, WEBP (max 20MB)

All processing happens in your browser. Images never leave your device.
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Embed This Tool

Add this tool to your website with customizable styling

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How to Use

  1. 1
    Upload your image — Drag and drop an image file (PNG, JPG, or WEBP up to 20MB) or click to browse. Your image is processed locally in your browser.
  2. 2
    Adjust quality — Use the quality slider to balance file size and image quality. Choose from presets: Low (60) for maximum compression, Medium (80) for balanced results, High (90) for best quality.
  3. 3
    Choose output format — Keep the original format or convert to JPG for photos or WEBP for modern web optimization.
  4. 4
    Preview results — Compare the original and compressed images side-by-side. See the exact file size reduction and savings percentage.
  5. 5
    Download compressed image — Click Download to save your optimized image. Use Compress Another to process a new image.

💡 Pro Tip: For web optimization, try WEBP format at 70-80 quality for the best balance of quality and file size. For email attachments, JPG at 60-70 quality keeps files under most email size limits.

Frequently Asked Questions

How much can I reduce my image file size?

Typical compression results range from 30-80% file size reduction depending on the image content and quality setting. Photos often compress better than graphics with solid colors. The preview shows your exact savings before downloading.

Will compression reduce image quality?

At higher quality settings (80-100), compression is nearly invisible to the human eye. At lower settings, some quality loss becomes noticeable. Use the side-by-side preview to find the right balance for your needs.

What's the best format for web images?

WEBP offers the best compression while maintaining quality and is supported by all modern browsers. JPG is better for photos. PNG is best when you need transparency or have images with text/sharp edges.

Are my images private?

Yes! All compression happens entirely in your browser using JavaScript. Your images never leave your device and are never uploaded to any server. This ensures complete privacy and security.

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