Batch Image Compressor

High-speed batch image compressor that optimizes multiple photos simultaneously, provides side-by-side byte savings metrics, and exports clean ZIP bundles.

How to Use Batch Image Compressor

Drop or select multiple photos (JPG, PNG, WebP) into the upload area.

Choose your target format (WebP for maximum savings, or keep original).

Adjust the compression quality slider (80% recommended for crisp web photos).

Optionally set a max dimension (e.g. 1920px Full HD) to resize large camera photos.

Click 'Compress All' and download individual files or the complete ZIP package.

What This Tool Does

Parallelizes canvas-based raster encoding across your CPU cores. Resizes high-resolution camera originals, strips heavy EXIF metadata chunks, and repacks images using modern WebP/JPEG compression curves.

Common Use Cases

Batch compressing product photography for e-commerce stores (Shopify, WooCommerce).

Optimizing photo albums and social media assets before web publication.

Reducing web page load times and Core Web Vitals LCP scores.

Privacy & Local-First Processing

Images are processed directly in browser memory and packaged into a ZIP with JSZip. No pictures are ever uploaded to any third-party server.

Frequently Asked Questions

How much file size reduction can I expect?

Converting raw smartphone photos or uncompressed PNGs to WebP typically yields 60% to 85% reductions with virtually imperceptible visual difference.

Can I download all compressed images at once?

Yes. Click 'Download All as ZIP' to receive an organized archive containing all compressed files.