How are Korean characters converted?

Korean jamo is romanized (e.g. 안녕 → an-nyeong). Meaning is lost but the result is URL-safe ASCII.

What about duplicate slugs?

This tool doesn't deduplicate. Append `-2`, `-3` in your DB logic if needed.

Stripped by default. Only alphanumerics, hyphens, and (optionally) dots remain.

Example

yutils — Free Online Tools (한국어)

yutils-free-online-tools-han-gug-eo

Unicode NFD normalization + Korean romanization + ASCII alphanumerics & hyphens. Options for lowercase enforcement, length limits, etc.

Usage / FAQ

Q.How are Korean characters converted?: A.Korean jamo is romanized (e.g. 안녕 → an-nyeong). Meaning is lost but the result is URL-safe ASCII.
Q.What about duplicate slugs?: A.This tool doesn't deduplicate. Append `-2`, `-3` in your DB logic if needed.
Q.Emojis and special characters?: A.Stripped by default. Only alphanumerics, hyphens, and (optionally) dots remain.

Fun facts

The 'slug' in URL slug comes from the newspaper printing era — a 'lead slug' was a small piece of metal used to identify or sort an article. The 'short, human-readable identifier' meaning was carried over to blogs and CMSs in the late 1990s as URLs became human-readable.
Wikipedia — Clean URL slug
For SEO, a URL slug should summarize the page's content. Google uses words in the URL as a weak ranking signal — `/articles/how-to-bake-bread` gets a slightly higher click-through rate than `/articles/12345` since users actually read the URL.
Google — URL Structure
Whether to embed Unicode Korean / CJK characters in slugs directly vs Romanize (e.g., '안녕하세요' → 'annyeonghaseyo') is a long-running debate. Native characters align with IDN display, but external sites can mangle them via percent-encoding (`%EC%95%88...`) — which is why Korean blogging platforms split between native vs Romanized.
Moz — URL best practices