Bulk Image Compressor & Resizer

Optimize, resize, and convert your images instantly without losing quality. Exif data is automatically removed for privacy.

Lower value = smaller file size but lower quality.

Drag & Drop Images Here

Supports JPG, PNG, WEBP (Max 50 images at once)

Visual Quality Comparison

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Original Image
Compressed Image
Original
Compressed

Free Online Bulk Image Compressor & Resizer

Optimize your images for the web instantly. Reduce file sizes, resize dimensions, and boost your SEO rankings securely within your browser.

Large, unoptimized images are the number one cause of slow-loading websites. High-resolution photos from modern smartphones or stock websites can easily be several megabytes in size. By using the Bulk Image Compressor by DoItToolz, you can drastically reduce the file size of your images in seconds. This ensures faster page loads, better Core Web Vitals, and a smoother experience for your users.

🔒 100% Secure & Privacy Focused: Unlike other image compression websites that upload your personal photos to their cloud servers, our tool processes everything locally inside your browser using HTML5 Canvas. Your images never leave your computer. Furthermore, sensitive EXIF data (like GPS locations) is automatically stripped out during compression.

Premium Features Included

  • Visual Quality Comparison: Not sure if 70% quality is too low? Click on any compressed image to open our interactive Before/After slider and compare the visual quality pixel by pixel.
  • Smart Image Resizing: Compressing quality isn't enough if your image is 4000px wide. Use our Max Dimensions feature to automatically scale down huge images to web-friendly sizes (like 1920px or 1280px) while maintaining the correct aspect ratio.
  • Format Conversion: Easily convert heavy PNG or JPG files into next-generation formats like WEBP for maximum compression and modern web compatibility.
  • Download as ZIP: Process up to 50 images at once and download them all neatly packaged in a single ZIP file.

Frequently Asked Questions (FAQs)

Which image format should I choose?

For modern web design, WEBP is the absolute best choice. It provides superior lossless and lossy compression for images on the web, often resulting in files 30% to 50% smaller than JPEG without any visual difference.

Will my images lose quality?

Image compression involves a slight loss of data (lossy compression). However, our algorithm is optimized to remove invisible data that the human eye cannot detect. Setting the quality between 75% and 85% usually reduces file size massively while keeping the image looking perfect.

Why did my PNG file get bigger?

PNG is a lossless format designed for graphics with transparency (logos, text). If you compress a highly detailed photograph as a PNG, it might be large. For photographs, we highly recommend changing the "Output Format" setting to JPEG or WEBP.

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