tla+-toolbox ☆

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Description:
IDE for TLA+

Type: Cask | Latest Version: 1.7.4@0 | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Developer tools

Tags: tla+ formal-methods model-checking concurrency verification ide

Install: brew install --cask tla+-toolbox

About:
The TLA+ Toolbox is an integrated development environment designed for modeling and verifying concurrent and distributed systems using the TLA+ specification language. It provides a graphical interface for writing specifications, running TLC model checks, and visualizing system behaviors. This tool helps engineers find subtle bugs in complex algorithms before implementation.

Key Features:

Integrated development environment for TLA+ specifications
Built-in TLC model checker for verifying system correctness
Graphical state space visualization and exploration
PlusCal algorithm translation and editing support

Use Cases:

Designing and verifying distributed consensus algorithms
Validating concurrent system behavior before coding
Educating students on formal methods and specification

Alternatives:

VS Code with TLA+ extension – Lighter weight, integrates with existing editor workflow
Dafny – Uses verification-by-synthesis approach instead of model checking

Version History

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