Bulk Image Compressor
Compress Image in Bulk Online Free. Reduce image file size up to 85% while maintaining quality. No upload required. Supports JPG, PNG, WebP.
Drag & Drop Multiple Images
or click to browse (up to 20 images)
Supported: JPG, PNG, WebP (Max 50MB per file, 20 files max)
How the Batch Image Compress Tool Works
Compress multiple images at once directly in your browser with full control over quality, format, and optional resizing before compression.
1. Set compression settings
Choose your desired compression level, output format, and optional resize settings before uploading images. These settings will apply to all images.
2. Upload multiple images
Drag and drop up to 20 JPG, PNG, or WebP files into the upload area or click to browse. Preview all images with their filenames and sizes before compression.
3. Compress and download all
Click Compress All to process every image. When done, review the results and download all compressed images in a single ZIP file or individually.
Key Features & Benefits
Process multiple images at once to save time while maintaining quality control.
Private & browser-based
All compression happens locally in your browser. Your images are never uploaded to any server, ensuring complete privacy.
Batch processing
Compress up to 20 images at once with the same settings, saving you time compared to processing images one by one.
Download as ZIP
Get all your compressed images in a single ZIP file for easy downloading, or download individual images as needed.
Preview before processing
See thumbnails of all selected images with filenames and sizes before compression, so you can verify your selection.
Detailed statistics
View total space saved, average reduction percentage, and individual stats for each compressed image.
Free & unlimited
Compress as many batches as you need for free. No accounts, subscriptions, watermarks, or hidden fees.
Frequently Asked Questions
Common questions about batch compressing images in your browser.
The limit is 20 images per batch to ensure stable performance in your browser. For larger batches, you can process multiple sets of 20 images.
Yes. You choose the compression level, output format, and resize options once at the beginning, and those settings apply to all uploaded images.
After compression completes, you can download all images at once as a ZIP file, or click individual download buttons for each image if you prefer.
The tool will skip any problematic images and continue processing the rest. You'll see a notification about any failed images at the end.
Yes, but performance depends on your device. Processing many large images may take longer on mobile devices. Consider processing fewer images per batch on mobile.
No installation needed. This tool runs entirely in your web browser using modern HTML5 and JavaScript technologies.