# Batch Image Processor | Nook Tools

> Compress, resize, and convert JPEG, PNG, and WebP images in your browser. Download individual images or a ZIP. Files stay on your device.

Language: en-US

Canonical: [Batch Image Processor | Nook Tools](https://nook.tools/en-US/images/batch-processor/)

LLM index: [Nook Tools](https://nook.tools/llms.txt)

## Batch Image Processor

Compress, resize, and convert images, then download them individually or together as a ZIP.

All processing runs in your browser. Images and filenames are never uploaded. Your original files stay unchanged.

## How to use

- Choose one or more supported images. Add more files before processing, or remove any you do not need.
- Choose an output format, quality, and optional maximum dimensions, then process the batch.
- Check the results and download individual images or a ZIP of all successful results. Changing settings clears previous results.

## Formats and limits

Static JPEG, PNG, WebP. Up to 50 images, 20 MiB each, 128 MiB per batch; up to 24 megapixels and 8192 px per side.

Quality controls JPEG and WebP compression. PNG uses lossless encoding; file size can increase.

Leave blank to keep the original size. Images fit within these bounds, keep their proportions, and are never enlarged.

JPEG fills transparent areas with white. Re-encoding does not preserve original metadata or color profiles; results depend on your browser. Animated images, SVG, GIF, HEIC, and AVIF are not supported.