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Tech riderRev. 4 Oct 2026

Defragger

Ch 106.4of 22 Disk Defragmentation Software
  1. 1Runs onLinux
  2. 2CostsFree plan
  3. 3Filesystem supportmulti-filesystem
3 lines stated Written from the maker's own pages: github.com
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The Defragger homepage

Overview

Defragger is ranked #10 of 22 in disk defragmentation software on Specifiction. It runs on Linux. There is a free plan.

Defragger plans and pricing

All plans
Open-source Free Alpha software · Linux only · ext4 and offline FAT16/FAT32 write support github.com · 4 Oct 2026

Compared on disk defragmentation software

Filesystem support
multi-filesystemgithub.com

Facts

Purpose
Defragger is a graphical Linux filesystem defragmenter that visualizes file, free-space, and metadata allocation.github.com · 4 Oct 2026
Analysis
It analyzes fragmentation and displays an adaptive filesystem block map.github.com · 4 Oct 2026
Read-only formats
FAT12 and exFAT support analysis only; neither is writable.github.com · 4 Oct 2026
CLI
The project includes a command-line interface for listing, analyzing, defragmenting, and compacting volumes.github.com · 4 Oct 2026
Privilege handling
The GUI and CLI run unprivileged, with elevated operations handled by a PolicyKit-authorized helper over D-Bus.github.com · 4 Oct 2026
Data safety
The README warns that the software is alpha, recommends backing up important data, and says ext4 has received the most testing.github.com · 4 Oct 2026
FAT caution
FAT write support is newer and the README recommends first using it with disposable or fully backed-up volumes.github.com · 4 Oct 2026
Linux requirements
The stated environment is Linux with Qt 6 and KDE Kirigami, while privileged mode requires systemd, PolicyKit, and an active graphical PolicyKit agent.github.com · 4 Oct 2026
Integrations
For ext4 operations, Defragger uses Linux filesystem ioctls directly and says it does not shell out to e4defrag or filefrag.github.com · 4 Oct 2026
License
Defragger is dual-licensed under MIT or Apache License 2.0.github.com · 4 Oct 2026
Support
The repository exposes GitHub Issues, which showed zero open issues when viewed.github.com · 4 Oct 2026
Maker
The README credits copyright 2026 to Guillaume Binet, and the maker's GitHub profile lists Austin, TX.github.com · 4 Oct 2026

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Where it ranks on Specifiction

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Sources