fst

GTKWave is a fully featured GTK+ based wave viewer for Unix and Win32 which reads LXT, LXT2, VZT, FST, and GHW files as well as standard Verilog VCD/EVCD files and allows their viewing.

Keyvi - the key value index. It is an in-memory FST-based data structure highly optimized for size and lookup performance.

Rust re-implementation of OpenFST - library for constructing, combining, optimizing, and searching weighted finite-state transducers (FSTs). A Python binding is also available.

Keyvi - a key value index that powers Cliqz search engine. It is an in-memory FST-based data structure highly optimized for size and lookup performance.

An efficient OpenFST-based tool for calculating WER and aligning two transcript sequences.

A local reactive cache for Java and Android. Now, it supports heap memory、off-heap memory and disk cache.

Open-source, license-free MCP server for RTL waveform debug: FST waveform + SystemVerilog netlist analysis, 27 tools including pre-simulation static analysis.

An NLP library for Uralic languages such as Finnish, Skolt Sami, Moksha and so on. Also supporting some non-Uralic languages such as Spanish, French, Arabic, Swedish, Norwegian, Russian and English. LLMs, FSTs and More!

Port of the OpenFST library to Windows

A single file C++17 header-only Minimal Acyclic Subsequential Transducers, or Finite State Transducers

🌊 CLI tool for RTL waveform (VCD/FST/FSDB) inspection

Python wrapper for OpenFST and its extensions from Kaldi. Also support reading/writing ark/scp files

Population Genetics in Julia

Modern GTKWave alternative

High-level digital waveform analysis in Python.

UDAR Does Accented Russian: A finite-state morphological analyzer of Russian that handles stressed wordforms.

FST (Fast Succinct Trie) implementation in Rust

The Language Independent Intelligent Dictionary

Stuttgart Finite State Transducer system

Apple IIgs host FST (for emulators that support it)