Pixels versus file size
Dimensions checker clarifies both so you pick resize or compress next. Match the published width×height first when both rules appear, then return for weight targeting if needed. Save with a simple name and a single extension before you upload again. If the result looks too soft, tighten framing before lowering quality again.
Orientation reality
Width and height reflect decoded pixels, not EXIF orientation tags. Wide heroes and identity crops behave differently under the same ceiling, choose framing for the actual job. Avoid stacked extensions like .jpg.jpg; intake scripts often choke on them. Temporary processing is not archival storage, save the download you intend to submit.
Before resize tools
Know current pixels to choose correct fixed-size page. Match the published width×height first when both rules appear, then return for weight targeting if needed. Related pages handle neighboring ceilings so you are not stuck forcing one target. When format or pixel rules sit outside this page, finish those steps on the related tools linked nearby.
MIME alongside dimensions
Format label helps when portals reject MIME not pixels. Very large source dimensions fight small byte budgets; the engine may reduce width and height when quality alone fails. Start from the original export whenever you still have it, not a chat-compressed copy. When format or pixel rules sit outside this page, finish those steps on the related tools linked nearby.
Batch inventory
Multi-upload lists each file separately. Group photos and product packs respond differently to the same settings; do not assume one preview represents the batch. Rename the download to a plain label plus one extension before submission. Portals care about clearing the limit more than hitting a precise byte total.
When a sibling tool is the better next step from image dimensions checker
If rejection continues, re-read help text for a second hidden rule, pixels, MIME type, or DPI, rather than looping the same export. Sibling tools cover those constraints explicitly. Very large source dimensions fight small byte budgets; the engine may reduce width and height when quality alone fails. Preview against both light and dark backgrounds when edges or transparency may change after encoding. When format or pixel rules sit outside this page, finish those steps on the related tools linked nearby.
Verifying the download after image dimensions checker
Batch mode still needs per-file review because portraits, screenshots, and logos respond differently. Avoid stacked extensions like .jpg.jpg; intake scripts often choke on them. Pixel boxes and kilobyte caps are independent validators, satisfying one never excuses the other. Nearby tools cover adjacent size and format rules when this page is not the match. Temporary processing is not archival storage, save the download you intend to submit.
What the inspection reports
The tool reads the uploaded file and reports measured properties such as MIME type, dimensions, or embedded density when those values are present. It does not invent missing metadata.
Shared test method
This tool uses the same upload validation, processing, and download path described on How we test. Representative tools were last verified on 5 October 2026. Individual pages only show a PASS card when that slug was in the measured sample.
Frequently asked questions
Does it fix dimensions?
It reports facts. Use resize tools to change pixels. If softness is unacceptable, crop tighter or ask whether a higher official limit exists.
DPI included?
Embedded DPI appears when found; use Check Image DPI focus page for density-only intent. Open the download once on your submission device before retrying the portal.
SVG or PDF?
Raster uploads only within allowlist. Batch mode still shows per-file previews. Review each result before submitting a set. Neighboring tools exist for nearby sizes; switching is better than forcing the wrong ceiling.
Fake analysis?
Values come from finfo, getimagesize, and file bytes. If softness is unacceptable, crop tighter or ask whether a higher official limit exists.
Compare with MIME checker?
MIME page adds allowlist context; dimensions page emphasizes WxH. Neighboring tools exist for nearby sizes; switching is better than forcing the wrong ceiling.
Download purpose?
Provides normalized copy; details reflect uploaded analysis. Neighboring tools exist for nearby sizes; switching is better than forcing the wrong ceiling. Neighboring tools exist for nearby sizes; switching is better than forcing the wrong ceiling.