How to use Compress Image to Size
- Choose the source image from your device.
- Review the available settings or analysis results.
- Download a result only when the measured output meets your needs.
Compress Image to a Target File Size
Aim for approximately 50 KB, 100 KB, 200 KB, 500 KB, 1 MB, or a custom target.
Choose images from your deviceYou can also paste an actual image with Ctrl+V / Cmd+V when this page is focused.
Compress Image to Size is designed around one clear task and keeps the working file on your device. Controls and limitations are shown before you process.
How OpenFileTools processes it
Local processing, explicit choices.
The browser reads and processes the selected file locally. OpenFileTools does not receive the image, metadata, or processing settings.
Quick technical summary
What this tool changes.
| Property | Behavior |
|---|---|
| Processing | Browser only; no image upload |
| Original | Never changed |
| Targets | 50 KB, 100 KB, 200 KB, 500 KB, 1 MB, or custom |
| Guarantee | Approximate measured result |
Choose a practical approximate target
Use the same page to compress an image to approximately 50 KB, 100 KB, 200 KB, 500 KB, 1 MB, or a custom target. Separate number-only pages would not change how encoding works.
- Start with the least restrictive target that the destination accepts.
- Review the actual bytes and visible quality before download.
Why exact bytes are not guaranteed
The tool iteratively adjusts encoding quality and, when necessary, dimensions. Browser codecs expose limited controls, so an exact byte count may be impossible without excessive quality loss; the measured result is reported honestly.
- Highly detailed images need more data than simple graphics.
- A tiny target can require smaller dimensions as well as lower quality.
Questions, answered.
Can you guarantee exactly 100 KB?
No. The tool aims near the target and reports the actual encoded size.
How does it reach a smaller target?
It tests quality levels and can reduce dimensions when quality alone is insufficient.
What if 50 KB looks unacceptable?
Choose a larger target or a smaller source; the tool will not claim acceptable quality for every target.
Do I need a separate page for 200 KB?
No. Select 200 KB or enter another value on this tool.
Read before you export
Read the related guide