Groupr – Rust CLI that sorts files into subfolders by extension

Name: Groupr – Rust CLI that sorts files into subfolders by extension
Availability: InStock
Author: timfinnigan

by timfinnigan·Apr 14, 2026·4 points·0 comments

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AI Analysis

●MidCozyShip It

~150 lines of Rust sorts files by extension, but file organizers are a dime a dozen.

Strengths

•Zero dependencies outside tempfile for dev—pure stdlib Rust keeps binary small and fast.
•Collision handling appends _1, _2 suffixes instead of overwriting existing files.

Weaknesses

•File organization scripts are extremely common—dozens exist on GitHub with identical functionality.
•No recursion into subfolders limits usefulness for deeply nested directory structures.

Post Description

Wrote this to clean up my Downloads folder. It moves top-level files into subfolders named after their extension. photo.PNG goes into png/, files with no extension go into no_extension/. --dry-run if you want to see what it would do first.

A few details: it doesn't recurse into existing subfolders, extensions are lowercased so you don't get png/ and PNG/ coexisting, and it handles name collisions by appending _1, _2, etc. rather than overwriting.

~150 lines of Rust, no dependencies outside of tempfile in dev.

cargo install --git https://github.com/timfinnigan/groupr groupr ~/Downloads --dry-run