HFST

Helsinki Finite-State Technology
Developer(s)HFST team
Initial release2008 (2008)
Stable release
3.16.2 / January 18, 2025 (2025-01-18)
Repository
Written inC++, Prolog, Python
Operating systemCross-platform: Linux, Mac OS X, Windows
Platformx86
Available inEnglish
TypeFinite-state toolkit
LicenseGPLv3, part Apache
Websitehfst.github.io

Helsinki Finite-State Technology (HFST) is a computer programming library and set of utilities for natural language processing with finite-state automata and finite-state transducers. It is free and open-source software, released under a mix of the GNU General Public License version 3 (GPLv3) and the Apache License.