Photo Resizer
Resize photos to a target file size in KB. Perfect for email attachments, form uploads with size limits, or saving storage.
Drop your image here, or click to browse
Any image format · Max 20 MB
Resizing to a target file size
Many platforms and services impose maximum file size limits. This tool automatically reduces image quality and dimensions to fit within your specified KB limit.
The output is always JPEG for maximum compression flexibility. The tool uses iterative compression to get as close to the target as possible.
Results vary by image content — photos with lots of detail may not compress as aggressively as simple images.
Frequently Asked Questions
Why is the output JPEG and not PNG?▼
JPEG offers vastly better size control through quality settings. PNG uses lossless compression which cannot be easily tuned to hit exact file sizes.
What if I cannot reach a very small target?▼
Very small targets (below 50 KB) may require significant quality reduction. If the result looks too degraded, try a slightly higher target.