JustilityImage file requirement checker
Check file format, exact pixel dimensions and minimum/maximum KB limits without changing the image.
Processed on your device. Your files are never uploaded by Justility.
How privacy worksHow it works
Choose an image, enter the receiving site’s requirements, and review each pass or fail. Download the local JSON report if needed.
Supported formats
Static JPEG, PNG and WebP, up to 20 MB and 24 megapixels.
Good to know
Only the entered file requirements are checked. Content, background and application acceptance require your own review. 1 KB = 1,000 bytes.
EXIF orientation is applied. Re-encoding may remove metadata and change color rendering. JPEG uses the selected solid background for transparency. Safety limits: 20 MB per image, 24 megapixels, and 8,192 px per side.
Using image file requirement checker
Choose an image, enter the receiving site’s requirements, and review each pass or fail. Download the local JSON report if needed.
Only the entered file requirements are checked. Content, background and application acceptance require your own review. 1 KB = 1,000 bytes.
Common questions
Are my inputs uploaded?
Justility processes this tool’s inputs locally and does not send them to a processing server. Public application assets are downloaded separately.
Can I use this without an internet connection?
Yes, after you prepare this tool from Offline help and the browser retains its assets. Installation is optional. All processing dependencies are bundled locally.