One place for image size and format work
Compress JPEG, PNG and WebP files, resize by maximum width or exact dimensions, and convert the output format in one batch.
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Batch image processing in your browser
Free Online Image Compressor
Compress images online in batches by target KB, quality or dimensions. Resize and convert JPG, PNG and WebP locally without uploads.
Files never leave this deviceDrop images here
JPEG, PNG and WebP files are supported. Animated images are not supported.
Batch summary
0 File
Total saved—
Choose at least one supported image to begin.
Process images in a few steps
Add one or more images, choose quality, dimensions and format, start processing, compare the original and new sizes, then download one result or the ZIP.
Method and sources
Images are decoded and redrawn with the browser Canvas API, then exported locally as JPEG, PNG or WebP. Reported sizes come from the original file and generated Blob objects.
Frequently asked questions
What can Free Online Image Compressor do?
Compress JPEG, PNG and WebP files, resize by maximum width or exact dimensions, and convert the output format in one batch.
How do I use Free Online Image Compressor?
Add one or more images, choose quality, dimensions and format, start processing, compare the original and new sizes, then download one result or the ZIP.
Does Free Online Image Compressor upload my data?
The tool runs in your browser. Your selected files, entered content and generated results are not sent to Zituo Tools.