# Install sfst with Homebrew, apt

Toolbox for morphological analysers and other FST-based tools. Version 1.4.7g via Homebrew; verified from local package data. Also installable with debian: sudo apt install libsfst-dev.

## Install

```sh
sudo av install brew:sfst
```

Additional install commands:

### macOS

- Homebrew (100%):

```sh
brew install sfst
```

  Evidence: local Homebrew formula metadata

### Linux

- Debian apt (92%):

```sh
sudo apt install sfst
```

  Evidence: Debian stable package indexes: sfst from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz

## Package facts

- **Package key:** brew:sfst
- **Package manager:** Homebrew
- **Version:** 1.4.7g
- **Source summary:** Toolbox for morphological analysers and other FST-based tools
- **Homepage:** <https://www.cis.uni-muenchen.de/~schmid/tools/SFST/>
- **Generated:** 2026-08-03T19:37:03+00:00

## Executables

- fst-compact (alias)
- fst-compare (alias)
- fst-compiler (alias)
- fst-compiler-utf8 (alias)
- fst-generate (alias)
- fst-infl (alias)
- fst-infl2 (alias)
- fst-infl2-daemon (alias)
- fst-infl3 (alias)
- fst-lattice (alias)
- fst-lowmem (alias)
- fst-match (alias)
- fst-mor (alias)
- fst-parse (alias)
- fst-parse2 (alias)
- fst-print (alias)
- fst-text2bin (alias)
- fst-train (alias)

## Install behavior

- Bottle: not available

## Freshness

- Page generated: 2026-08-03
- Package-manager version: 1.4.7g
## Project history and usage

SFST is Helmut Schmid's Stuttgart Finite State Transducer toolbox for building morphological analyzers and other finite-state-transducer based NLP tools. The official page describes a compiler, interactive and batch analyzers, transducer comparison/printing tools, and an efficient C++ transducer library.

### Project history

The official SFST page publishes source-code releases from version 1.2 through 1.4.7g and asks users to cite the 2005 FSMNLP paper 'A Programming Language for Finite State Transducers.' Later releases added UTF-8 support, efficiency improvements, Hopcroft minimisation, work with the HFST team, and bug fixes for lexicon and replacement behavior.

### Adoption history

SFST became part of the computational morphology toolchain around academic finite-state NLP. The official page lists downstream morphologies such as SMOR, LatMor, EMOR, TRMOR, mlmorph, and yakutmorph, and also notes Debian and Homebrew packaging plus Python bindings.

### How it is used

Users write transducer programs and compile them into minimized transducers, then use the command-line tools for analysis, generation, parsing, printing, comparison, and low-memory lookup. Its official documentation explicitly targets users familiar with grep, sed, or Perl.

### Why package nerds care

SFST matters to package-manager users because it brings an academic NLP finite-state toolchain into ordinary Unix-style installation flows. Its Homebrew and Debian packaging makes older research software usable alongside modern NLP tools without manual source builds.

### Timeline

- 2005: SFST publication presented at FSMNLP 2005.
- 1.2: Earliest source release listed on the official SFST downloads page.
- 1.4.2: Official release notes mention Hopcroft minimisation and work with the HFST team.
- 1.4.7g: Latest source release listed on the official SFST downloads page.

### Related projects

- The official page names AFST and HFST as projects extending SFST-related functionality, and notes HFST was implemented on top of SFST, OpenFST, and foma libraries.

### Sources

- Official LMU SFST page: project description, features, source releases, manual/tutorial links, related morphologies, packaging notes, citation, and related FST toolkits.
- Official SFST manual PDF metadata confirms the manual is the project manual surface.
- input.source_facts.package-manager: Homebrew, Debian, and Ubuntu package names.


## Security Notes

narrow executable package without higher-risk signals.

- **Geiger risk:** green / low
- narrow executable package without higher-risk signals

## Other Package-Manager Records

- Debian apt - libsfst-dev - 1.7.0-1: normalized package name match | Debian stable package indexes: libsfst-dev from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | Development library SFST | https://github.com/santhoshtr/sfst
- Debian apt - libsfst1 - 1.7.0-1: normalized package name match | Debian stable package indexes: libsfst1 from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | Shared library for SFST | https://github.com/santhoshtr/sfst
- Debian apt - sfst - 1.7.0-1: normalized package name match | Debian stable package indexes: sfst from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | Stuttgart finite-state transducer tools | https://github.com/santhoshtr/sfst
- Ubuntu apt - libsfst1-1.4 - 1.4.7b-1build2: normalized package name match | Ubuntu 24.04 LTS package indexes: libsfst1-1.4 from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | Shared library for SFST | http://www.cis.uni-muenchen.de/~schmid/tools/SFST/
- Ubuntu apt - libsfst1-1.4-dev - 1.4.7b-1build2: normalized package name match | Ubuntu 24.04 LTS package indexes: libsfst1-1.4-dev from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | Development library SFST | http://www.cis.uni-muenchen.de/~schmid/tools/SFST/
- Ubuntu apt - sfst - 1.4.7b-1build2: normalized package name match | Ubuntu 24.04 LTS package indexes: sfst from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | Stuttgart finite-state transducer tools | http://www.cis.uni-muenchen.de/~schmid/tools/SFST/


## Combined YAML source

View the package source record on GitHub. [combined/sfst.yml](https://github.com/mxcl/pkgdb/blob/main/combined/sfst.yml)


## Sources

- pkg.so package database
- Geiger risk classifier
- curated package history
- pkgdb category and tag curation
- external package-manager database matches
- cross-ecosystem install command graph
