SkilltoSky

Free Online Bulk Image Compressor

Fast, free, and secure tool to compress image files in seconds.

Drag & drop images here or click to browse

You can upload up to 30 images at a time.

Why Choose Our Image Compressor

🖼️

Superior Quality Conversion

Our smart algorithms ensure optimal compression while preserving image clarity and detail integrity.

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Smart Size Optimization

Automatically reduces file sizes by up to 90% without noticeable quality loss.

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Instant Processing

Convert batches of images in seconds with our lightning-fast processing engine.

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Multi-Format Support

Supports JPG, PNG, and WEBP formats. Process up to 30 images at a time.

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Absolute Privacy

All processing happens in your browser - your images never leave your device.

🎁

100% Free Forever

No subscriptions, no watermarks, no hidden fees. Professional tools at zero cost.

How It Works

1. Upload Images

  • Drag & drop or click to select
  • Supports JPG, PNG, WEBP
  • Max 30 images at a time
  • Supports file size > 5MB

2. Customize Settings

  • Adjust quality (0.3-0.9)
  • Enable resizing if needed
  • Set max width/height
  • Live preview available

3. Download Results

  • Download as ZIP archive
  • Or get individual files
  • See size reduction %
  • Original quality preserved
Pro Tip: Use "Max Compression (0.3)" for smallest file sizes

Frequently Asked Questions

This powerful image compressor works with JPG, PNG, and WEBP formats. Whether you're looking for a photo compressor, picture compressor, or a simple pic size reducer, it helps you reduce the size of an image, shrink photo dimensions, or lower image resolution—all without noticeable quality loss.

Perfect for anyone needing a picture size reducer, reduce size of the photo, or just want to reduce the pic size for faster uploads and sharing.

We support both near-lossless and lossy compression, depending on the selected quality level.

  • Light (0.9): Offers near-lossless compression with minimal file size reduction. Ideal when you want to preserve full visual quality.
  • Medium to Heavy (0.7 – 0.5): Balanced options using smart lossy compression, which significantly reduce file size while maintaining excellent visual quality.
  • Max (0.3): Applies maximum compression for the smallest file size. This is a lossy setting, best for web use or bulk image sharing where file size matters most.
Choose the level that fits your needs: from visual fidelity (0.9) to extreme file size savings (0.3).

Yes. Our tool is bulk image compressor and you can compress up to 30 images in JPG, PNG, or WebP formats completely free without any size or watermark limitations in one go. If you have more photos, upload and compress again once the first batch image compressoion completes.

Our tool is optimized for JPG, PNG and WebP compression. For JPGs, we recommend "Strong Compression (0.6)", while PNGs work best with "Max Compression (0.3)" for maximum file size reduction.

Upload your images and use the quality between Max to Strong (0.3 – 0.6) to reduce file size. Enable resizing with dimensions like 800px width for optimal web performance. Most images can be reduced by 60-80% without visible quality loss.

Use our quality presets: 0.9 (100-300KB), 0.7 (50-150KB), or 0.3 (20-80KB) for typical results. Combine with resizing for more precise control over final file sizes.

While our tool maintains original formats, converting PNG to JPG can reduce file size by 70-90% for photographic content. For graphics with transparency, stick with PNG compression.

Absolutely. All processing happens locally in your browser - your images never upload to any server. This ensures 100% privacy and security for your files.

For most websites, we recommend:
  • Hero images: 1200-1500px width, 150-300KB
  • Content images: 800-1000px width, 50-150KB
  • Thumbnails: 300-500px width, 20-50KB
Use our resizing options with "Medium Compression" to achieve these targets.