Bulk Resizer
Bulk Resizer by AmberPic processes your images directly in your browser. Resize multiple images to the same dimensions and download as ZIP. No upload, no signup, instant results. Works with every modern format and produces output optimized for web, email, or social media.
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Drop images here or click to upload
JPG, PNG, WebP, AVIF — Up to 100 files · Or paste with Ctrl+V
Features
- ✓ Resize multiple images to the same dimensions at once
- ✓ Maintain folder structure in output
- ✓ Custom naming conventions
- ✓ Download all as a single ZIP
- ✓ Up to 100 images per batch
How to use
- 1 Upload multiple images Drag and drop a folder or select multiple files. All major formats supported.
- 2 Set target dimensions Enter width and height (with optional aspect ratio lock).
- 3 Choose output format Keep original format or convert all to JPG/PNG/WebP.
- 4 Download ZIP Get all resized images in one ZIP file.
Common use cases
- → Prepare product photos for an e-commerce site
- → Resize hundreds of images for a photo gallery
- → Optimize all images for a web project at once
Frequently asked questions
How many images can I resize at once?
Up to 100 images per batch. For larger batches, repeat the process or split into multiple ZIPs.
Can I keep the original filenames?
Yes, by default filenames are preserved. You can also add a suffix like '_resized' to identify processed files.
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JPG to WebP
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Privacy guaranteed
- ✓ Zero uploads — your files never leave your device
- ✓ No signup, no watermark, no limits
- ✓ Works offline once loaded