OPEN SOURCE PROJECT: KOROMAN - Korean Romanizer

This website serves as the official demo of the open-source Korean romanization library KOROMAN.
The koroman library is available for JavaScript, Python, and Java environments.

Pronunciation Rules

Case Options

Input (Korean)

Jamo Decomposition

Result (Romanized)

About Romanization

An online Korean romanization converter based on the Revised Romanization system (Ministry of Culture Notice 2000-8).
Follows most Korean pronunciation rules including consonant assimilation, palatalization, and initial sound law.

How it works

koroman is a tool that converts Korean sentences into Latin alphabet by decomposing each syllable into individual Jamo components and transforming them according to romanization rules.
The conversion process follows these steps:

Decomposition (function splitHangulToJamos())

Korean syllables are decomposed into Choseong (initial), Jungseong (medial), and Jongseong (final) Jamo characters using Unicode.

Pronunciation (function applyPronunciationRules())

Korean phonological changes such as assimilation, palatalization, liaison are applied to the Jamo string.

Romanization (function applyRomanMapping())

The modified Jamo characters are converted into Latin letters following the Ministry of Culture's Revised Romanization system (2000 standard).

Case formatting (function formatRoman())

The resulting string is formatted according to the user-specified case option (lowercase, word initial capitalization, etc.).

For romanization that more closely resembles actual pronunciation rather than just standard spelling, you can enable the "Apply Pronunciation Rules" option for more natural results.

Romanization Examples

해돋이 → haedoji (O), haedodi (X)
선릉역 → seolleungyeok (O), seonreungyeok (X)
역량 → yeongnyang (O), yeokryang (X)
굳이 → guji (O), gudi (X)

Name/Proper Noun Discrepancies

Certain names and proper nouns may have commonly used English spellings that differ from the standard romanization rules.

박지성 (Park Jisung) → Bak Jiseong
김치 (Kimchi) → Gimchi

Romanizer

About Romanization

How it works

Romanization Examples

Name/Proper Noun Discrepancies

References