Reduce any image to exactly 40KB for fast-loading thumbnails and lightweight web images. Powered by ImageMagick server-side compression.
or drop images here max 10MB per file
Powerful features for all your image needs
Process images in seconds using ImageMagick on the server. Fast and reliable.
Files are processed securely and deleted automatically after download.
Smart algorithms maintain visual quality while reducing file size.
No software to install. Works on any device with a browser.
Support for JPG, PNG, WebP, GIF, BMP, TIFF, ICO and more.
No hidden fees, no registration, no watermarks. Free forever.
Three simple steps to compress to 40KB
Drag and drop or click to browse. Supports JPG, PNG, WebP, GIF up to 10MB.
The target size is already set to 40KB. Hit compress and our algorithm handles the rest.
Download your compressed image instantly or grab all results as a ZIP.
Common questions about compressing images to 40KB
Most images can be reduced to 40KB. Very large originals may show some quality loss, but small-to-medium images compress well. Images already under 40KB cannot be reduced further.
40KB is ideal for web thumbnails, product listing images, blog post thumbnails, and platforms that impose strict file size limits on uploads.
Moderate compression is applied to reach 40KB. For images displayed at small-to-medium sizes, the quality is usually still very acceptable.
Yes, files are uploaded to process using ImageMagick. They are deleted automatically right after you download your result.
Yes add up to 10 images at once (or more with "Remove limits"). They are processed in batch and you can download all results as a ZIP.
Yes. Open the settings panel and change the Max File Size field to any target. Or use our full Image Compressor for complete control.
Use our full compressor to compress to any custom file size you need.