String normalize()Baseline · Widely available
The normalize() method of strings returns a Unicode normal form of a string as a new string. More than one code point sequence can represent the same characters. You can use the normalize() method to find canonically or compatibly equivalent strings.
Supported in all major browsers for at least 30 months — safe to use without fallbacks. Baseline since Sep 20, 2016. Widely available since Mar 20, 2019.
Browser support
DesktopChrome
1–33Not supported
34+Supportedsince Apr 8, 2014
Current: 155Edge
12+Supportedsince Jul 29, 2015
Current: 154Firefox
1–30Not supported
31+Supportedsince Jul 22, 2014
Current: 157Safari
1–9.1Not supported
10+Supportedsince Sep 20, 2016
Current: 27MobileChrome Android
18–33Not supported
34+Supportedsince Apr 2, 2014
Current: 155Firefox Android
4–30Not supported
31+Supportedsince Jul 22, 2014
Current: 157Safari iOS
1–9.3Not supported
10+Supportedsince Sep 13, 2016
Current: 27How to use
This feature is Baseline widely available — use it freely, no fallback needed.
Example
Full syntax and examples are on MDN: normalize.
Feature detection
JS · check before using
if ("normalize" in String || ("prototype" in String && "normalize" in String.prototype)) {
// String.normalize is available
}