Batch Image Compressor Online — Compress Images to WebP
Compress up to 30 images online with adjustable WebP quality and download one ZIP, without uploading files.
Images are processed locally in your browser and are not uploaded.
About this tool
This batch image compressor decodes selected browser-supported images, re-encodes each one as WebP at the chosen quality and packages the outputs into a ZIP.
How to use
- Choose up to 30 images totaling no more than 100 MB.
- Select the WebP quality level.
- Compress locally and download the ZIP archive.
Features
- Converts a multi-image batch to WebP.
- Provides adjustable quality from 10% to 100%.
- Creates one downloadable ZIP locally.
Common use cases
- Optimize website image collections.
- Reduce photos before transferring them.
- Create WebP assets for a content migration.
Common issues and tips
- WebP results may not be smaller for every source.
- Metadata and animation are not preserved by canvas re-encoding.
Privacy
Batch compression runs locally in your browser. Selected images are not uploaded to Tools12345.
Frequently asked questions
Which output format is used?
Every processed image is encoded as WebP.
How many files are supported?
Up to 30 files with a combined selected size of 100 MB.
Does it preserve EXIF metadata?
No. Canvas re-encoding normally removes embedded metadata.