RE2JS is the JavaScript port of RE2, a regular expression engine that provides linear time matching

XState for finite state machines

A finite state machine iterator for JavaScript

A library for finite automata and regular expressions in the context of JS RegExp

A minimal implementation of xstate fsm for UI machines

A finite state machine (FSM) implementation for node.js

HFSM Implementation

Zero-dependency timeout/deadline primitive: clampTimeout, deadline, timeoutOf, TimeoutReason (timing + classification only, no termination)

finite state machine with async callbacks

Test if a double-precision floating-point numeric value is finite.

Finate State Automata JS Solutions

A finite state machine library for Node.js and the browser with a friendly configuration DSL

Lit-based web component for the CopilotKit web inspector

A finite state machine library

Deepkit workflow engine / finite state machine

Simple finite state machine framework that can be used with client or server.

HFSM Implementation

UI-Router Core: Framework agnostic, State-based routing for JavaScript Single Page Apps

ES6-compliant shim for Number.isFinite.

State-based routing for Angular