jamo
A Hangul syllable and jamo analyzer.
Decision gist · record as of 2026-08-14
Yes, if you need Hangul decomposition and can verify compatibility with your Python version. The library is simple, has no dependencies, and carries no security vulnerabilities. However, it is abandoned and untested on modern Python—verify it works in your environment before relying on it in production.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Classifiers list Python 3.2–3.4 support; compatibility with modern Python versions is unverified.
- Installation is straightforward with no runtime dependencies.
- However, the package is abandoned—last release was 2017-11-06 and last commit 2022-08-16—so it will not receive updates or security patches for issues discovered in modern Python versions.
License · maintenance · safety
permissive license (permissive) — Licensed under Apache 2.0 (permissive), allowing free use, modification, and distribution without royalty concerns. No restrictions on commercial or private use.
last release 2017-11-06 (3203 days) · last repo commit 2022-08-16 · 122 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 654,710 downloads/mo, #5,520 on PyPI
Alternatives
Verify before relying
pip install jamo
import jamo
# Decompose a Hangul syllable into jamo
decomposed = jamo.decompose('한')
print(decomposed)- Whether the package actually works on Python versions beyond those listed in classifiers.
- Whether Unicode coverage extends beyond 7.0 or if newer Hangul characters are unsupported.
- Performance characteristics when processing large Korean text corpora.
What it is and what it does
Jamo is a Python library for decomposing Hangul syllables into their component jamo (Korean letter units) and synthesizing them back together. It was originally built to help students identify difficult-to-spell Korean words by analyzing phonetic and spelling patterns—particularly distinguishing similar vowels like ㅔ and ㅐ or ㅗ and ㅜ. The library covers nearly all Hangul-related codepoints under Unicode 7.0.
The package has no runtime dependencies and installs cleanly, but it is abandoned: the last release came out in 2017, and the repository has not been actively maintained since 2022. While the code may still work for basic Hangul analysis tasks, it will not receive updates for compatibility with newer Python versions or for any discovered issues.
Use it for
- Analyze Korean spelling by decomposing syllables into jamo to identify vowel or consonant patterns.
- Build Korean language learning tools that need to break down syllables for phonetic instruction.
- Process Korean text in NLP pipelines where jamo-level decomposition is needed for feature extraction.
- Validate or normalize Korean text by decomposing and re-synthesizing syllables.
- Create Korean spell-checkers or phonetic search tools based on jamo analysis.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you need Hangul decomposition and can verify compatibility with your Python version.
The library is simple, has no dependencies, and carries no security vulnerabilities. However, it is abandoned and untested on modern Python—verify it works in your environment before relying on it in production.
Install
jamo on PyPI
Before you install
Installation is straightforward with no runtime dependencies. However, the package is abandoned—last release was 2017-11-06 and last commit 2022-08-16—so it will not receive updates or security patches for issues discovered in modern Python versions.
Classifiers list Python 3.2–3.4 support; compatibility with modern Python versions is unverified.
License in practice
Licensed under Apache 2.0 (permissive), allowing free use, modification, and distribution without royalty concerns. No restrictions on commercial or private use.
Quickstart
pip install jamo
import jamo
# Decompose a Hangul syllable into jamo
decomposed = jamo.decompose('한')
print(decomposed)Verify before relying
- Whether the package actually works on Python versions beyond those listed in classifiers.
- Whether Unicode coverage extends beyond 7.0 or if newer Hangul characters are unsupported.
- Performance characteristics when processing large Korean text corpora.
Package facts
| License | permissive license permissive |
| Python support | Not specified |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | None |
| Maintenance | Abandoned 3,203 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 654,710 / month, #5,520 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | License :: OSI Approved :: Apache Software LicenseProgramming Language :: Python :: 3Programming Language :: Python :: 3.2Programming Language :: Python :: 3.3Programming Language :: Python :: 3.4 |
Evidence: jamo-0.4.1-py3-none-any.whl
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See also ko-speech-tools · hangul-romanize · g2pkk · zhon · syllapy · python-mecab-ko · phonemizer · python-mecab-ko-dic · orthography2ipa · mecab-ko