Compress to Target Size
Compress an image to a specific file size target, like 100KB or 1MB.
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How to use Compress to Target Size
Select an image and type your target file size in KB or MB.
Choose the output format (JPG or WebP recommended).
Click 'Compress to Target Size' and the tool binary-searches the best quality.
Download the result, sized within a few percent of your target.
Frequently Asked Questions
Can you guarantee the exact file size?
Encoders produce slightly variable output, so we aim within a small tolerance (usually +-5%) of your target. The result is always very close.
What if the target is too small for the image?
If even the lowest quality setting exceeds your target, the tool returns the smallest file it can produce.
Is this processed locally?
Yes. All quality searching and encoding happens in your browser. Nothing is uploaded.
More Free Browser Image Tools
Every tool runs 100% locally in your browser memory with zero server uploads.
Compress Image
Compress any JPG, PNG, WebP, or AVIF image to a smaller file size with quality control.
Compress JPG
Compress JPG photos and images with a simple quality slider and preview.
Compress PNG
Optimize PNG images with safe lossless compression or aggressive size reduction.