Compress Image to Exact KB
Compress any image to a precise file size in KB. Set your target - 100KB, 200KB, 500KB - and a binary search algorithm finds the optimal quality setting automatically.
How it works
Uses a binary search algorithm - starts at 50% quality, checks if the file fits your target, then goes up or down until it finds the highest quality that fits within your specified KB limit. Typically takes 8–12 attempts to find the optimal setting.
How to use Compress Image to Exact KB
Upload or paste your input
Drag and drop your file or content into the tool, or click to browse and select it from your device.
Adjust any settings
Configure output format, quality, or any options available for this tool. Defaults work well for most use cases.
Download or copy the result
Processing happens instantly in your browser. Click download or copy to use your result - nothing was sent to any server.
Frequently Asked Questions
Common questions about Compress Image to Exact KB
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