phonemizer-fork
Simple text to phones converter for multiple languages
Decision gist · record as of 2026-08-14
Yes, if you need multilingual text-to-phoneme conversion. The package is actively maintained, has low install friction, and offers flexible backend selection for different use cases. The GPLv3+ license is a hard constraint only if you're building proprietary software; for research, open-source, or internal projects it poses no barrier. No known vulnerabilities.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Backend engines (espeak, festival, espeak-mbrola) may require separate system installation depending on which backend you select.
- Low install friction with a pure-Python wheel and only 5 runtime dependencies.
- Repository is active with recent commits and 1567 stars.
License · maintenance · safety
copyleft license (copyleft) — Licensed under GPLv3+, a copyleft license requiring that any derivative works or distributions remain under the same terms. Suitable for open-source projects but incompatible with proprietary software that cannot be released under GPL.
last release 2025-01-30 (561 days) · last repo commit 2026-08-04 · 1,567 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 966,328 downloads/mo, #4,619 on PyPI
Alternatives
Verify before relying
pip install phonemizer-fork
from phonemizer.phonemize import phonemize
phones = phonemize('hello', language='en-us', backend='espeak')- Whether backend engines are bundled or must be installed separately on the system
- Whether this fork is actively maintained or has diverged from the original phonemizer package
- Exact language and feature support for each backend beyond the comparison table
What it is and what it does
Phonemizer-fork is a Python library that converts written text into phonetic transcriptions—sequences of individual speech sounds (phones)—in multiple languages. It wraps four different phonemization backends (espeak, espeak-mbrola, festival, and segments), each with different capabilities: espeak supports IPA output for many languages at fast speed, espeak-mbrola uses SAMPA for a smaller set of languages but slower, festival handles American English with syllable-level tokenization, and segments uses user-defined grapheme-to-phoneme mappings. The library provides both a command-line tool and a Python API for straightforward text-to-phone conversion.
You would use this package when you need to convert text into phonetic form for speech synthesis, linguistic analysis, or training speech-related machine learning models. The choice of backend depends on your language, required phonetic alphabet (IPA vs. SAMPA vs. custom), and whether you need syllable-level or word-level tokenization. It handles punctuation preservation and stressed phones where supported, and integrates with joblib for parallel processing.
Use it for
- Prepare training data for speech systems by converting text to phonetic representations using espeak or festival
- Analyze pronunciation patterns across languages for linguistic research or language learning applications
- Build custom phonemization workflows for languages using the segments backend with user-provided mappings
- Extract syllable-level phonetic tokens for prosody analysis or rhythm-based speech processing in English
- Convert multilingual text to IPA for comparative phonetic studies
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you need multilingual text-to-phoneme conversion.
The package is actively maintained, has low install friction, and offers flexible backend selection for different use cases. The GPLv3+ license is a hard constraint only if you're building proprietary software; for research, open-source, or internal projects it poses no barrier. No known vulnerabilities.
Install
phonemizer-fork on PyPI
Before you install
Low install friction with a pure-Python wheel and only 5 runtime dependencies. Repository is active with recent commits and 1567 stars.
Backend engines (espeak, festival, espeak-mbrola) may require separate system installation depending on which backend you select.
License in practice
Licensed under GPLv3+, a copyleft license requiring that any derivative works or distributions remain under the same terms. Suitable for open-source projects but incompatible with proprietary software that cannot be released under GPL.
Quickstart
pip install phonemizer-fork
from phonemizer.phonemize import phonemize
phones = phonemize('hello', language='en-us', backend='espeak')Verify before relying
- Whether backend engines are bundled or must be installed separately on the system
- Whether this fork is actively maintained or has diverged from the original phonemizer package
- Exact language and feature support for each backend beyond the comparison table
Package facts
| License | copyleft license copyleft |
| Python support | Supports the current Python release >=3.8 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 5 packagesattrsdlinfojoblibsegmentstyping-extensions |
| Maintenance | Actively maintained 561 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 966,328 / month, #4,619 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)Operating System :: OS IndependentProgramming Language :: Python :: 3 |
Evidence: phonemizer_fork-3.3.2-py3-none-any.whl
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