Compress Image
Reduce the file size of JPG, PNG and WebP images for websites, email, social media and storage. Upload one or more images, choose the compression level, compare the original and compressed sizes, and download the optimized files while maintaining good visual quality.
Click to select files
or drag and drop them directly here
Your images are uploaded over a secure connection, compressed on our server, and the temporary files are automatically deleted after processing. WebToolkit does not require an account.
How to use Compress Image
Upload your images
Select or drag and drop one or more JPG, PNG, or WebP images into the upload area.
Choose a compression level
Pick Light, Balanced, or Strong to control the trade-off between quality and file size.
Start compression
Compress your images on the server in a single click.
Review the savings
See the original and compressed sizes, along with the percentage saved for each image.
Download the results
Download each optimized image individually, or download them all as a ZIP.
Key Features
- Supported formats: Compress JPG, JPEG, PNG, and WebP images with a single tool.
- Adjustable compression: Choose Light, Balanced, or Strong to match your quality and size needs.
- Batch processing: Compress up to 20 images at once, with a 25MB limit per file.
- Size comparison: See original versus compressed size and the percentage saved for every image.
- ZIP download: Download all compressed images together in a single ZIP archive.
- No signup: No account, email, or installation is required to use the compressor.
Frequently Asked Questions
How does image compression work?
The tool re-encodes your image at a chosen compression level, removing data that has little visible impact so the file becomes smaller while still looking good.
Will compression reduce image quality?
Compression is lossy, so stronger settings reduce file size more but can affect fine detail. The Light and Balanced levels aim to keep quality high.
Which image formats are supported?
You can compress JPG and JPEG, PNG, and WebP images.
Can I compress multiple images at once?
Yes. You can upload up to 20 images at a time and download them together as a ZIP file.
Why does a PNG sometimes compress less than a JPG?
PNG uses lossless-style storage suited to graphics and transparency, so photographic PNGs often shrink less than JPG images at the same visible quality.
Are uploaded images stored?
Your images are uploaded only to perform the compression. The temporary files are automatically deleted after processing and are not kept.
What compression level should I use for websites?
Balanced is a good default for the web. Use Strong when small file size matters most, or Light when preserving detail is the priority.