Year First icon

Year First

by TerraImperfecta · Functionality & UI
Manifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

Rewrites every date on a page to YYYY-MM-DD.

Users
3
+1 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#309K
#248K among extensions
Version
1.0.2
updated 20 Sep 2026

Users

monthly, 1 months
023Sep 2026Oct 2026Oct 2026
Latest, 15 Oct 2026: 3 usersMove the mouse over the chart for any month

Ratings count

monthly, 1 months
001Sep 2026Oct 2026Oct 2026
Latest, 15 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Year First

Every date on the page, in one format: 2024-01-05. Year First rewrites dates as it finds them, largest unit first, in the order that actually sorts. It reads the formats people write: January 5, 2024 and 5 Jan 2024 both become 2024-01-05; 23/07/2024 becomes 2024-07-23; 3/4/25 becomes 2025-04-03. 05/01/2024 is the hard one, because it means two different days depending on who wrote it. Year First looks for other dates on the same page that can only be read one way -- anything with a part above 12 -- and lets those decide. Failing that it uses the page's own language. Or you can simply tell it: day first, month first, or work it out. Timestamps marked up as time elements are read from their machine- readable attribute, so "three hours ago" becomes a real date. Some sites are better left as they are -- code review tools, log viewers, anything where the original string is the point. The toolbar popup has an off switch for the site you are on, separate from the global one. It is careful about what it does not touch. Code, preformatted text, input fields and anything you are editing are left alone. Version numbers like 1.2.3 survive, as do fractions, year ranges, and impossible dates like 31/02/2024. A date already written as 2024-01-05 is left exactly as it is. Add data-no-year-first to skip any element and everything inside it. Dates that appear after the page loads get rewritten too. No accounts, no network requests, no analytics, no data collection of any kind. Your settings are stored by your browser and never leave it. The source is public and readable -- nothing minified, nothing bundled -- so you can check every word of this yourself.

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%00.00
30 days+1+50.0%00.00

Version history

2 versions recorded
1.0.220 Sep 2026
1.0.01 Sep 2026

Details

Category
Functionality & UI
First seen
1 Sep 2026
Size
46 KB
Languages
en
Pricing
Free
Privacy policy
github.com
Extension ID
mlecfgaideieghgmfomobmljbpaljhpp

Permissions and risk

Moderate riskimpact 2, likelihood 3
Permissions
storageactiveTab

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