Compress Images OnlineReduce File Size in KB or MB
Shrink image file weight without losing noticeable visual quality. Set an exact target file size (e.g. 50 KB or 1 MB) for portal uploads or website performance.
Drop your images here to compress
or
JPG, PNG, WebP, GIF or BMP · Multiple files supportedDesired maximum file size
Enter your required limit (e.g. 50 KB for online forms or 300 KB for web photos).
Output size
Original size will appear here.
Understanding Image Compression
Learn how target size tuning and format selection reduce file weight.
How Target Size Compression Works
When you set a target size (such as 50 KB), our browser engine uses a binary search algorithm to test encoding quality factors. It iteratively calculates the optimal quality setting that delivers the highest visual clarity while staying strictly beneath your target kilobytes.
Lossy vs Lossless Compression
JPEG and WebP use lossy compression to discard imperceptible color details, cutting file size up to 80%. Read our File Size Reduction Guide for in-depth optimization advice.