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Tech riderRev. 20 Sept 2026

Defraginator

Ch 146.3of 22 Disk Defragmentation Software
  1. 1Runs onLinux, Mac, Windows
  2. 2CostsNot stated by the maker
  3. 3Filesystem supportmulti-filesystem
2 lines stated Written from the maker's own pages: github.com
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The Defraginator homepage

Overview

Defraginator is ranked #14 of 22 in disk defragmentation software on Specifiction. It runs on Linux, macOS, Windows.

Compared on disk defragmentation software

Filesystem support
multi-filesystemgithub.com

Facts

Purpose
Defraginator is a cross-platform desktop app for defragmenting `.bin` ROM and firmware images on SD cards and other removable media.github.com · 4 Oct 2026
File selection
It scans for `.bin` files that match enabled target sizes of 256 KB, 512 KB, 1024 KB, or 2048 KB.github.com · 4 Oct 2026
Workflow
The app detects mounted removable volumes, recursively scans matching files, checks their physical cluster layout, and relocates fragmented files into contiguous free space.github.com · 4 Oct 2026
Windows support
On Windows, it uses filesystem controls to find contiguous free clusters and move file clusters in place; moving clusters requires administrator rights.github.com · 4 Oct 2026
Linux and macOS support
On Linux and macOS, it rewrites files and verifies their physical extent layout; Linux’s FIBMAP fallback requires root, while the listed macOS operations run as a normal user.github.com · 4 Oct 2026
Safety
The README says the original file is restored if contiguous placement fails on Linux or macOS, and success is reported only after physical contiguity is verified.github.com · 4 Oct 2026
Operating caution
Users are told not to remove the card while defragmentation is in progress.github.com · 4 Oct 2026
Space requirement
Defragmentation requires a contiguous free gap at least as large as the file; the app reports free space and, on Windows, the largest contiguous free block.github.com · 4 Oct 2026
Runtime requirement
The repository lists the .NET 10 SDK as a requirement and provides build-and-run commands.github.com · 4 Oct 2026
License
The repository identifies the project as GPL-3.0 licensed.github.com · 4 Oct 2026

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Where it ranks on Specifiction

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Sources