ddh ☆

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Description:
Fast duplicate file finder

Type: Formula | Latest Version: 0.13.0@0 | Tracked Since: Dec 17, 2025

Links: Homepage | formulae.brew.sh

Category: System utilities

Tags: duplicate-finder cli utility file-system deduplication

Install: brew install ddh

About:
ddh is a command-line utility designed to rapidly identify duplicate files by comparing their SHA-1 hashes. It leverages multithreading to achieve high performance, making it suitable for scanning large datasets and entire filesystems efficiently. The tool provides a straightforward way to reclaim disk space by pinpointing redundant data.

Key Features:

Multithreaded hashing for high-speed scanning
Command-line interface for scripting and automation
Hash-based comparison (SHA-1) for accuracy
Low resource footprint

Use Cases:

Cleaning up duplicate photos, videos, and documents in personal archives
Identifying redundant dependencies or build artifacts in development projects
Auditing file systems on servers or NAS devices for data deduplication

Alternatives:

fdupes – A classic and widely available duplicate file finder, often pre-installed on Linux systems.
fslint – A comprehensive suite of tools for finding and linting various types of filesystem issues, including duplicates.

License: LGPL-3.0-only

Bottles available for: arm64_tahoe, arm64_sequoia, arm64_sonoma, arm64_ventura, arm64_monterey, arm64_big_sur, sonoma, ventura, monterey, big_sur, catalina, arm64_linux, x86_64_linux

Version History

Detected	Version	Rev	Change	Commit
Sep 15, 2025 5:37am		0	VERSION_BUMP	69285703
Nov 25, 2022 5:57pm		0	VERSION_BUMP	6db06c4b