Bulk Image Compressor

What is the Bulk Image Compressor?

The Bulk Image Compressor reduces the file size of your images using browser-based WebP compression — without uploading a single file to a server. Drop in multiple images at once, adjust the quality level, and download the compressed results instantly.

Smaller images load faster, consume less storage, and reduce bandwidth costs. This tool is especially useful for web performance optimisation, where image weight is one of the biggest contributors to slow page load times.

Who Is This Tool For?

• Web developers — reduce image payload size to improve Core Web Vitals scores and page load speed.
• Designers — compress assets before handing them off to development without quality loss.
• Content creators and bloggers — optimise images before uploading to a CMS so pages load fast.
• E-commerce managers — bulk-compress product photography to speed up shop pages.
• Photographers — reduce file sizes for sharing online without losing visible quality.

Common Use Cases

• You have a folder of high-resolution product photos and need them compressed for a web shop.
• Your blog post images are slowing down the page — compress them all at once before uploading.
• You are preparing images for email marketing and need to stay under attachment size limits.
• You need to share a batch of photos via a messaging app that imposes file size limits.
• You are auditing a website for performance and find oversized images — bulk-compress them quickly.

How to Compress Images

1. Drag and drop one or more images onto the tool, or click to browse.
2. Adjust the quality slider to balance file size and image quality.
3. The tool compresses all images immediately and shows the size reduction for each.
4. Click Download All to save the compressed images as a ZIP, or download them individually.

Your images are compressed entirely in your browser. They are never uploaded to a server.