Compress Image to 40KB
Compress images to exactly 40KB file size. Perfect for file size requirements, email attachments, and web optimization. Fast, secure, and works entirely in your browser.
Target Size: 40KB
Our smart compression algorithm will automatically compress your image to exactly 40KB (±200 bytes). The tool adjusts quality iteratively to hit the precise target size while maintaining visual quality.
Upload Image to Compress to 40KB
Drag & drop or click to browse
About Compress to 40KB Tool
Our free online tool compresses images to exactly 40KB file size. Perfect for meeting specific file size requirements for applications, forms, email attachments, and web optimization where exact file size matters.
Simply upload your image, and our smart compression algorithm automatically adjusts quality to hit the precise 40KB target (within ±200 bytes tolerance). All processing happens securely in your browser. No registration required, completely free to use.
Exact 40KB
Precise compression to hit 40KB target size.
Smart Algorithm
Iterative compression maintains quality.
100% Secure
All processing happens in your browser.
How to Compress Image to 40KB
Upload Your Image
Click the upload box or drag and drop your image file (JPG, PNG).
Auto Processing
Our algorithm automatically compresses to exactly 40KB.
Verify Target Size
Check the stats to see the compressed size hits 40KB target.
Download 40KB Image
Click download to save your compressed 40KB image file.
Pro Tip: For applications with strict 40KB file size requirements, this tool ensures exact targeting. For general optimization with quality control, try our Image Compressor tool.