Free author tool
Web Novel Cover Size Checker
Use the Web Novel Cover Size Checker to check image dimensions and compare one cover with the catalog's 3:4 display frame.
Check one cover
Your image stays in your browser.
Check the cover before you publish
A small ratio difference can cause an automatic crop. This checker shows whether your cover is close to the 3:4 frame used by Novel Recommendations.
It also reports the exact pixel size. Use that result when you compare your file with the rules for Royal Road, Webnovel, Amazon, or another publishing service.
What the catalog comparison means
The site has 15,089 novel records with cover images. Their cards use a 3:4 frame so that readers can scan a consistent grid. A matching ratio reduces cropping on this site, but it does not judge the art or text.
Web Novel Cover Size Checker FAQ
How does the Web Novel Cover Size Checker work?
Choose one image. The checker reads its pixel dimensions and compares its aspect ratio with the 3:4 frame used for catalog covers on Novel Recommendations.
Does the checker upload my cover?
No. Your image stays in your browser. The page does not upload or save the file.
Does a 3:4 cover meet every publishing platform's rules?
No. Each platform can set its own file type, size, and aspect-ratio rules. Check those rules before you publish.