oddly charming utility with a real use case if you care about storage layout, plus a nice dose of old-school computer theater. probably more valuable as an inspection tool than as something you should run on every machine.
Defragger
A real graphical defragmenter for Linux filesystems written in Rust and Qt Quick/Kirigami
2 ratings4.11
Saves97
CategoryUtilities
PlatformWeb
PricingFree
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Defragger is a Linux filesystem defragmenter providing a graphical interface to analyze and reorganize fragmented filesystems like ext4 and FAT16/FAT32. It features a visual block map, supports online and offline defragmentation, and manages privileged operations securely via PolicyKit. Targeted at Linux desktop users who want more control and visualization of filesystem fragmentation.
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CategoryUtilities
PlatformsWeb
PricingFree
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ListedAugust 2026
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Show HN97 source points · 69 comments
Beautiful. Defragmenting my drives manually is one of those things like closing apps on my phone I am not using. Everyone says there is no need to do it. It might even be slightly worse overall. I even have enough self control to avoid doing it and have for years... But deep down in my heart, I truly FEEL like if I did it would improve things... somehow.
blobdole · Imported from Show HN
This made me think of https://e4rat.sourceforge.net/, which moves boot files into sequential runs, which was helpful on spinning disks where seeks were slow but sequential reads were fast. Just as an idea for a feature your defragmenter could have. (Also this is a side thought; but I wonder if AWS AMIs and EBS volumes will boot faster if also organized sequentially.)
jewel · Imported from Show HN
I have a question about disk defragmenter. I've asked a couple of people before and they've said it is not possible but iirc if I stated disk defragmenter and then even so much as moved the mouse after it started it would start with the first boxes again. Do you remember this too?
collabs · Imported from Show HN
This is the most useless thing I've seen on here lately. It's not necessary on hard drives, as the page cache did a decent job of improving disk access even in the 90s, let alone with today's fast HDDs. And if you're on an SSD... it'll just burn that out faster. I love it!
bitwize · Imported from Show HN
I like the graphical interface and the movement of the blocks. Brings back memories of defragmenting hard drives once a month and seeing noticeable performance improvements sometimes. > Fragmentation and extent allocation were adding measurable variance, even on NVMe, Why exactly would there be a measurable variance on NVMe? I understand there could be some impact on magnetic hard drives. This sounds like some sort of coincidence due to other factors and that this defragmentation won’t achieve much (except for wearing out your SSD even faster in certain cases).
AnonHP · Imported from Show HN