fclones
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Description:
Efficient Duplicate File Finder
Type: Formula  |  Latest Version: 0.35.0@0  |  Tracked Since: Dec 17, 2025
Links: Homepage  |  formulae.brew.sh
Category: System utilities
Tags: deduplication duplicate-finder rust system-utility disk-space
Install: brew install fclones
About:
fclones is a high-performance duplicate file finder written in Rust that uses efficient hashing algorithms to quickly identify identical files. It can hard-link or symlink duplicates to save disk space without data loss. The tool offers parallel processing capabilities for scanning large filesystems rapidly.
Key Features:
  • Parallel processing for fast scanning
  • Multiple hash algorithms (xxh3, blake3, etc.)
  • Hard-link and symlink replacement options
  • Dry-run mode for safe testing
  • Cross-platform support
Use Cases:
  • Cleaning up duplicate files in large media libraries
  • Deduplicating backup directories
  • Freeing up disk space on development systems
  • Identifying duplicate downloads or documents
Alternatives:
  • fdupes – fclones is significantly faster and more feature-rich
  • rmlint – fclones offers better performance and simpler CLI interface
License: MIT
Bottles available for: arm64_tahoe, arm64_sequoia, arm64_sonoma, arm64_ventura, sonoma, ventura, arm64_linux, x86_64_linux
Version History
Detected Version Rev Change Commit
Sep 13, 2025 8:01pm 0 VERSION_BUMP 382f9334
Sep 13, 2024 4:30am 0 VERSION_BUMP f2d6e4d6