Find Common Years
List every common (non-leap) year within a range of years. Runs entirely in your browser, so your data never leaves your device.
Output
The result appears here as you type.
How to use Find Common Years
- 1. Set the year range. Enter From year and To year to define the span to check, for example 2000 to 2005, and the tool tests every year in between.
- 2. Choose a separator. Set the Separator field to how you want the results joined, such as a newline or comma, so the list drops straight into a spreadsheet or script.
- 3. Copy the results. Click generate and copy the list of common years from the output pane, which excludes every leap year in the range.
When to use Find Common Years
Find Common Years lists every ordinary, 365-day year within a range, filtering out the leap years automatically using the full Gregorian rule (divisible by 4, except centuries not divisible by 400). It saves working out leap year exceptions by hand across a longer span of years.
- Building a historical dataset. A researcher preparing a dataset of non-leap years for a statistics exercise wants the full list generated automatically for a decade rather than checking each year by hand.
- Validating a date library. A developer testing a custom date library's leap year detection wants a known-correct list of common years to compare test output against.
- Teaching the leap year rule. A teacher explaining why 1900 was not a leap year but 2000 was wants a generated list spanning both centuries to illustrate the century exception.
- Planning a financial model. An analyst building a model that treats leap years differently for interest calculations wants the list of ordinary years in a range to flag which periods need the standard 365-day treatment.
Examples
Common years 2000–2005
Output
2001 2002 2003 2005
About the Find Common Years tool
Find Common Years runs as plain JavaScript in your browser tab, with no server behind it. List every common (non-leap) year within a range of years. Whatever you put in stays on your device from start to finish.
The tool is part of EditSafely's Time Tools section, 90 single-purpose utilities built around the same idea: open the page, get the result, keep your data to yourself.
You can shape the output with 3 settings, including From year, To year and Separator, and the result refreshes the moment you change one. A worked example further down the page shows exactly what the tool produces for a real input.
That local-first design has practical benefits beyond privacy. The tool keeps working on a flaky connection once the page has loaded, results are instant because nothing round-trips to a server, and it is safe to use with confidential material.
Frequently asked questions
Is Find Common Years free to use?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Does the generator send anything to a server?
Everything happens locally. Your browser downloads the tool's code once, then does all the processing itself; nothing you enter is transmitted, stored or logged. You can even go offline after the page loads and it will still work.
How do I get a different result?
Run the generator again. Each run is computed fresh on your device, and any options you change are applied to the next result immediately.
Do I need to sign up or install anything?
No. The tool works in any modern browser on desktop, tablet or phone. There is no account to create, no extension to add and no software to install.
How do I use the result?
The output panel has a one-click copy button, and you can keep refining the input while you work; the result updates in place as you type.