How many images can I compress at once?

Each batch can contain between 1 and 20 JPEG, PNG, WebP or AVIF images.

Which quality setting should I use?

Quality 80 is a practical default for JPEG, WebP and AVIF. Lower values make smaller files, while higher values retain more detail. PNG remains lossless.

Does bulk compression remove transparency?

PNG, WebP and AVIF outputs preserve transparency. JPEG does not support transparency, so transparent areas are placed on white.

Are uploaded images retained?

Originals, compressed images and ZIP files are temporary and expire according to the configured processing retention period.

MyToolsNext

MyToolsNext Bulk Image Compressor

Compress Images Online in Bulk

Reduce image and photo file size online without resizing everything manually. Compress up to 20 JPEG, PNG, WebP or AVIF images, control quality or dimensions, and download the results together.

Choose or drop imagesJPEG, PNG, WebP or AVIF. Up to 20 images, 25 MB each.

Image quality80

Smaller filesHigher detail

Maximum dimensions

Output format

Target a maximum size for each image

I have permission to process these images and respect their owners' rights.

How to compress multiple images online

Choose or drop up to 20 JPEG, PNG, WebP or AVIF images.
Set the quality, maximum dimensions and output format for the batch.
Optionally enter a target size for each image.
Compress the batch and download the ZIP file.

Supported inputs

JPEG and JPG images
PNG images with transparency
WebP images
AVIF images
Batches containing up to 20 images

Available outputs

Original image formats with optimized encoding
JPEG, WebP or AVIF conversion
One ZIP containing all compressed images and a JSON report

Why use this tool

Compress up to 20 images in one job
Resize without enlarging smaller images
Correct JPEG camera orientation automatically
Temporary signed ZIP downloads removed automatically

Common problems

A PNG does not reach the target size: PNG compression is lossless, so target size is best effort. Choose WebP or AVIF output, or reduce the maximum dimensions.
A tiny image saves very little space: Small images have limited removable data. A modern WebP or AVIF output may provide a better reduction.
The batch is rejected: Check that the batch contains no more than 20 supported images and stays within the per-file and total upload limits.

Frequently asked questions

How many images can I compress at once?: Each batch can contain between 1 and 20 JPEG, PNG, WebP or AVIF images.
Which quality setting should I use?: Quality 80 is a practical default for JPEG, WebP and AVIF. Lower values make smaller files, while higher values retain more detail. PNG remains lossless.
Does bulk compression remove transparency?: PNG, WebP and AVIF outputs preserve transparency. JPEG does not support transparency, so transparent areas are placed on white.
Are uploaded images retained?: Originals, compressed images and ZIP files are temporary and expire according to the configured processing retention period.

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