grin ☆

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Description:
Minimal implementation of the Mimblewimble protocol

Type: Formula | Latest Version: 5.3.3_rebuild@0 | Tracked Since: Dec 28, 2025

Links: Homepage | @grinprivacy | formulae.brew.sh

Category: Developer tools

Tags: blockchain mimblewimble privacy cryptocurrency cli

Install: brew install grin

About:
Grin is a lightweight, command-line implementation of the Mimblewimble protocol, designed for learning and experimenting with privacy-focused blockchain concepts. It provides a minimal, standalone node and wallet to demonstrate the core principles of the protocol, such as confidential transactions and transaction aggregation. This tool is ideal for developers who want to understand the cryptographic underpinnings of privacy coins without the overhead of a full-scale network.

Key Features:

Minimalist Implementation: Focuses on the core Mimblewimble protocol without unnecessary bloat.
Command-Line Interface: Operates entirely through the terminal for efficient, scriptable interaction.
Educational Tool: Serves as a practical resource for understanding privacy-preserving blockchain technology.
Standalone Node: Can run a local node to simulate network activity and transaction validation.

Use Cases:

Learning and prototyping with Mimblewimble and confidential transaction schemes.
Developing and testing applications that require a lightweight, privacy-focused blockchain backend.
Running a local testnet for Grin or other Mimblewimble-based protocols.

Alternatives:

grin – The official, full-featured Grin node implementation, which is more complex and resource-intensive.
beam – Another major Mimblewimble implementation with a different feature set and ecosystem.

Version History

Detected	Version	Change	Commit
Sep 12, 2025 3:12pm	5.3.3_rebuild	VERSION_BUMP	a3c199c4
Sep 16, 2024 10:56pm		VERSION_BUMP	0e22f3e1
Sep 16, 2024 1:26pm		VERSION_BUMP	904ff3c3
Sep 13, 2024 12:10pm		VERSION_BUMP	c0a4c36f