# Install kytea with Homebrew, MacPorts, Nix Toolkit for analyzing text, especially Japanese and Chinese. Version 0.4.7 via Homebrew; verified 2026-06-19. ## Install ```sh sudo av install brew:kytea ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install kytea ``` Evidence: local Homebrew formula metadata - MacPorts (94%): ```sh sudo port install kytea ``` Evidence: MacPorts ports tree: textproc/kytea/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1 ### Linux - Nix (92%): ```sh nix profile install nixpkgs#kytea ``` Evidence: nixpkgs package indexes: pkgs/by-name/ky/kytea/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 ## Package facts - **Package key:** brew:kytea - **Package manager:** Homebrew - **Package manager page:** - **Version:** 0.4.7 - **Source summary:** Toolkit for analyzing text, especially Japanese and Chinese - **Homepage:** - **Repository:** - **Upstream docs:** - **License:** Apache-2.0 - **Source archive:** - **Last updated:** 2026-06-19T12:31:22-07:00 - **Generated:** 2026-07-08T18:08:21+00:00 ## Executables - api-example (cli) - kytea (cli) - train-kytea (cli) - api-example (alias) - kytea (alias) - train-kytea (alias) ## Install behavior - Post-install hook: not defined - Bottle: available on arm64_big_sur, arm64_linux, arm64_monterey, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, big_sur, catalina, monterey, sonoma, ventura ## Freshness - Page generated: 2026-07-08 - Package-manager version: 0.4.7 - Package-manager updated: 2026-06-19 - Local data: ok - Upstream repository: https://www.phontron.com/kytea/ - info: Release/tag comparison is only available for GitHub repositories. ## Project history and usage KyTea is the Kyoto Text Analysis Toolkit, a C++ toolkit by Graham Neubig for word segmentation, pronunciation estimation, and other analysis tasks, especially for Japanese and other languages where word or morpheme boundaries are not explicit in raw text. ### Project history The KyTea NEWS file records version 0.0.1 on 2009-11-05 as the initial release of KyWs and KyPe. The public GitHub repository and README describe the later project as a general text-analysis toolkit focused on Japanese and languages requiring segmentation. KyTea's design sits in the statistical NLP toolkit tradition before transformer-based tokenizers became dominant. It gives researchers and language-processing users a trainable analyzer with command-line tools and a library API rather than a closed dictionary-only analyzer. ### Adoption history KyTea's adoption is mostly academic and language-tooling oriented. It appears in package managers such as Homebrew, MacPorts, and Nix because Japanese and Chinese text-processing workflows often need a reproducible segmenter that can be scripted from Unix pipelines. ### How it is used The package installs kytea for analysis and train-kytea for model training. Users run it to segment text, estimate pronunciations, prepare corpora, or build custom models for domains where default Japanese tokenizers are not enough. ### Why package nerds care KyTea is a nice package-manager artifact because it packages research NLP into classic Unix form: a small binary, a training command, headers, and docs. It is especially useful in multilingual text-analysis stacks where tokenization is a prerequisite rather than the final task. ### Timeline - 2009-11-05: KyTea 0.0.1 was released as the initial release of KyWs and KyPe. - 2009-11-16: The ChangeLog records version 0.0.2 with Shift-JIS support and an Autotools build-system change. - 2026-07-01: The GitHub releases page for neubig/kytea listed no packaged GitHub releases, so the historical anchor remains the repository NEWS and source documentation. ### Related projects - Related tools and concepts include Japanese morphological analyzers, Chinese word segmentation, MeCab-style tokenization workflows, statistical NLP, corpus preparation, and trainable language-specific text-analysis pipelines. ### Sources - - - - - - ## Security Notes narrow executable package without higher-risk signals. - **Geiger risk:** green / low - narrow executable package without higher-risk signals ## Source Database Details - **Source Database:** Homebrew formula API - **Tap:** homebrew/core - **Full Name:** kytea - **Version Scheme:** 0 - **Revision:** 0 - **Head Version:** HEAD - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** head, stable ## Other Package-Manager Records - Nix - kytea: normalized package name match | nixpkgs package indexes: pkgs/by-name/ky/kytea/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 - MacPorts - kytea: normalized package name match | MacPorts ports tree: textproc/kytea/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1 ## Related links - [Terminal utility packages](https://www.automicvault.com/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata. - [Text processing packages](https://www.automicvault.com/pkg/text-processing-tools/) - Matched text, document, or structured-data processing metadata. - [Language runtime packages](https://www.automicvault.com/pkg/language-runtime-packages/) - Matched language runtime, compiler, or interpreter metadata. - [Networking and protocol packages](https://www.automicvault.com/pkg/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata. - [juman](https://www.automicvault.com/pkg/brew/juman/) - Shares av.db curated category or tags: cli, japanese, natural-language-processing, nlp, science. - [jumanpp](https://www.automicvault.com/pkg/brew/jumanpp/) - Shares av.db curated category or tags: cli, japanese, natural-language-processing, nlp, science. - [freeling](https://www.automicvault.com/pkg/brew/freeling/) - Shares av.db curated category or tags: cli, natural-language-processing, nlp, science. - [sfst](https://www.automicvault.com/pkg/brew/sfst/) - Shares av.db curated category or tags: cli, natural-language-processing, nlp, science. - [link-grammar](https://www.automicvault.com/pkg/brew/link-grammar/) - Shares av.db curated category or tags: cli, natural-language-processing, science. - [openfst](https://www.automicvault.com/pkg/brew/openfst/) - Shares av.db curated category or tags: cli, nlp, science. - [aamath](https://www.automicvault.com/pkg/brew/aamath/) - Shares av.db curated category or tags: cli, science. - [abpoa](https://www.automicvault.com/pkg/brew/abpoa/) - Shares av.db curated category or tags: cli, science. ## Combined YAML source View the package source record on GitHub. [combined/kytea.yml](https://github.com/automic-vault/db/blob/main/combined/kytea.yml) ## Sources - Nucleus package database - Geiger risk classifier - package-page enrichment - curated package history - package version freshness - av.db category and tag curation - package relationship graph - external package-manager database matches - cross-ecosystem install command graph