Step by step
- Choose the image you need to reduce.
- Enter the target size in kilobytes.
- Process and download the optimized JPEG result.
Resize image to file size
Aim for a target KB or MB size with best-effort compression. Everything happens on your device.
Private · no uploadADVERTISEMENT SPACE
Drop a file here
or click to browse your device
JPG, PNG or WebPProcessed locally in your browser
PRACTICAL GUIDE
How to use Resize image to file size
Resize an image toward a specific maximum file size in KB. Kitwise tests several JPEG quality levels locally and selects a best-effort result near your target, making it practical for application portals, profile photos, and forms with strict upload limits.
Common uses
- Prepare an image for a 100 KB or 200 KB upload limit.
- Reduce profile and identification photos for online forms.
- Create smaller attachments without repeatedly testing settings manually.
Helpful tips
- The result aims for the target but exact byte-level matching is not always possible.
- Very low targets can noticeably reduce quality, especially for detailed photos.
- Start from the original image for each attempt to avoid repeated quality loss.
COMMON QUESTIONS
Resize image to file size FAQ
Will the result be exactly the requested size?
The tool uses iterative compression and aims to stay close to the target, but browser encoders cannot guarantee an exact byte count.
What output format is used?
The optimized result is exported as JPEG because it allows predictable quality adjustment.
Does my image leave the device?
No. The size search and export run locally in your browser.