fclones

Input—per 1M tokens

Output—per 1M tokens

Context—tokens

WeightsClosed

About

fclones is ranked #6 of 27 in duplicate file finders on Inferse. It runs on Linux, macOS, Windows. There is a free plan.

Compared on duplicate file finders

Free plan: Yesgithub.com
Platform coverage: cross-platformgithub.com
Scan locations: Directory trees, multiple directory roots, standard-input file lists, and mounted or removable devicesgithub.com
Match methods: File size, inode/file identifiers, prefix hash, suffix hash, and full-content hashgithub.com
File preview: Yesgithub.com
Automatic selection: Yesgithub.com
Folder exclusions: Yesgithub.com

Facts

Purpose: fclones identifies groups of identical files and removes unwanted copies.github.com · 1 Oct 2026
File operations: It can remove, move, or replace redundant files with soft or hard links.github.com · 1 Oct 2026
Deduplication: It can deduplicate file data using native copy-on-write reflinks on supported file systems.github.com · 1 Oct 2026
Selection: It supports multiple directory roots, standard-input file lists, recursion limits, glob and regular-expression filters, and minimum or maximum file sizes.github.com · 1 Oct 2026
Output: It provides standard text, fdupes-compatible, CSV, and JSON output formats.github.com · 1 Oct 2026
Integrations: The project says it integrates with Unix utilities such as find and speaks JSON.github.com · 1 Oct 2026
Safety controls: Users can inspect and modify duplicate lists before removal, and the --dry-run option reports filesystem changes without executing them.github.com · 1 Oct 2026
Performance: The Rust implementation parallelizes I/O and CPU-heavy stages and automatically tunes processing for SSDs and HDDs.github.com · 1 Oct 2026
Caching: Optional persistent hash caching can speed up repeated grouping and resume interrupted work.github.com · 1 Oct 2026
Security: The repository is released under the MIT license.github.com · 1 Oct 2026
Platform limit: Copy-on-write file-data deduplication is not supported on Windows.github.com · 1 Oct 2026
Linux optimization: Physical file-access ordering and page-cache drop-behind optimizations are unavailable on platforms other than Linux.github.com · 1 Oct 2026
Support: The project provides GitHub Issues and Discussions for community support.github.com · 1 Oct 2026