Batch Compress Images to Same KB Size — Free Online Tool
Counsellors, photographers, and exam aspirants often need twenty uniform photos—each under the same KB or pixel size. Upload up to twenty JPG, PNG, WebP, or HEIC files, choose a shared target, and download everything as a ZIP or individual files. PhotoSizeTool processes each image locally, so bulk batches of SSC, UPSC, IBPS, or NEET candidates never touch a server. Switch between “same KB” mode powered by our adaptive compressor and “same dimensions” mode for consistent width and height. Use single-image tools when every file needs a different target.
Frequently Asked Questions
How many images can I compress at once?
Up to 20 images in a single batch. All processing happens in your browser simultaneously.
Can I set different sizes for different images?
The batch tool applies one target to all images. For individual targets, use the single compressor.
Will all images download in a ZIP?
Yes — click "Download All as ZIP" to get all compressed images in one file. You can also download individually.
Does batch compression work on mobile?
Yes, though processing 20 large images may be slow on older phones. We recommend batches of 5–10 on mobile.
What formats are supported?
JPG, PNG, WebP — and HEIC if your browser supports it (iPhone Safari handles HEIC natively).