- Enter — Any year.
- Check — See if it's a leap year.
Leap Year Checker
Quickly check if any year is a leap year.
Privacy
All calculations run in your browser.
Leap Year Checker — Is It a Leap Year?
Free leap year checker. Find out if any year is a leap year, with next/previous leap years — 100% client-side. 100% serverless.
🔒 100% Private
⚡ Completely Free
🌐 Runs in Browser
📦 Export Ready
⚡
Leap Year Checker — Is It a Leap Year?
Tool Workspace
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Frequently Asked Questions
What is the leap year rule?
Divisible by 4, except centuries unless also divisible by 400.
Does it show next/previous leap years?
Yes, absolutely it is.
Is my data safe?
Yes. 100% in your browser.