Bulk Image Processor
Convert, resize or compress multiple images at once — download compressed or lossless
Click or drag images here
PNG, JPG, WebP, GIF, SVG, BMP, HEIC/HEIF — multiple files supported
Free Bulk Image Converter — Convert, Resize and Compress Multiple Images
ezyimg's Bulk Image Processor lets you convert, resize, or compress hundreds of images at once. Choose JPEG, PNG, or WebP output, set quality, and process all images in a single click — all done locally in your browser using the Canvas API, no uploads required.
How to Use
- 1
Choose operation
Select Convert Format (change image type), Resize (change dimensions), or Compress (reduce file size).
- 2
Set output format and quality
Choose JPG, PNG, or WebP. Set quality percentage (85% is a good default for JPG).
- 3
Upload multiple images
Drag multiple PNG, JPG, WebP, GIF, or other image files into the drop zone.
- 4
Process all images
Click Process. All images are converted/resized/compressed simultaneously in your browser.
- 5
Download all at once
Click Download All to save every processed image, or download individual images by clicking the download icon next to each.
Tips & Best Practices
- →WebP output gives the smallest file sizes — typically 25–35% smaller than JPEG at equal quality.
- →Quality 85% for JPEG is the sweet spot — minimal visible quality loss with good compression.
- →For web images, 1200px wide JPEG at quality 80% is a standard optimization target.
- →PNG output is lossless — use it for graphics, logos, and screenshots that need pixel-perfect quality.
- →The size savings are shown for each image and as a total — useful for knowing how much you optimized.
Frequently Asked Questions
How do I batch convert images online for free?
Upload multiple images to ezyimg's Bulk Image Processor, select 'Convert Format', choose your output format (JPG, PNG, or WebP), and click Process. All images are converted in your browser.
How do I compress multiple images at once?
Upload your images, select 'Compress' operation, set quality (e.g. 80%), and click Process. The tool reduces file sizes by re-encoding images at the chosen quality level.
Can I resize hundreds of images at once?
Yes. Select 'Resize', set your target width (e.g. 1200px), and upload as many images as needed. All images are resized to the target width while maintaining aspect ratio.
What is the best format for web images?
WebP is the best modern format — it's smaller than JPEG and supports transparency like PNG. If broad compatibility is needed, JPEG (quality 80–85%) is the standard web image format.
Is there a limit to how many images I can process?
No server limit — everything runs in your browser. However, processing hundreds of large images at once may be slow on older devices. Start with batches of 50–100 images for best performance.