A QUICK WALKTHROUGH
How to use this tool
- Choose a static image and enter the target in decimal KB.
- Select the required format and maximum quality; allow resizing only if acceptable.
- Compress and inspect both the target result and the exported image.
How it works
JPEG and WebP use a bounded search to retain the highest tested quality that meets the target, or the smallest tested candidate when none meets it. PNG is re-encoded but does not have the same lossy quality control. Optional resizing makes progressively smaller candidates if quality alone is insufficient. The result reports actual bytes and never presents an unmet target as success.
A practical example
Start with
Target 200 KB
What to expect
The output must be at most 200,000 bytes. A 204,800-byte file is 200 KiB and exceeds this target.
Important considerations
A PNG may become larger after re-encoding. Repeated lossy conversions can degrade detail. Start from the original and inspect small text or sharp edges before using the download.
Static JPEG, PNG or WebP · 10 MiB · 16 megapixels. Input remains in page memory until you reset or leave. Copy and download actions are initiated by you. No tool input is sent to a processing service.
One more useful detail
Can you guarantee a target without quality loss?
No. Some targets are impossible for the chosen format and dimensions. The result explicitly reports when the target is not met.