Relive 1998: Windows 98 Disk Defragmenter Simulator Now Runs in Your Browser
Defrag98: Windows 98 Disk Defragmenter Simulator Online

Defrag98 is a free, browser-based simulator of the classic Windows 98 Disk Defragmenter. It recreates the iconic grid of colored clusters, complete with authentic hard-disk sound effects, and lets you choose from four virtual drives with varying speeds. It's pure nostalgia—no real files are touched, and it works offline as an installable web app.
Watch the familiar grid of colored clusters rearrange itself in real time as fragmented data is consolidated into one contiguous block.
- vunderba
When I was younger, my friends and I joked about making a "Disk Fragmenter" which would enumerate through every file on the disk and split them into non-contiguous clusters to make sure that the actuator arm on your platter-drive gets a PROPER WORKOUT TO FEEL THE BURN.
- stoatstudios
Perhaps it's appropriate for me to link to the free game I made where you play a taxi driving through Disk Defragmenter and delivering stray blocks of data to their final locations: https://safetystoatstudios.itch.io/ddr. It was pretty fun to watch Defragmenter as a kid, but it would have been better if it was interactive, kind of like the 3D maze screensaver.
- singiamtel
There's something satisfying about defragging that has been lost to time. Like oiling a squeaky engine
- vessenes
I love this. I wanted the disk noise, and I got it. I will say that’s a lot faster than my drives were in the late 1990s though.
- cosmic_cheese
I recall there being some techno-mysticism surrounding defragging regarding how often and when it was necessary, what it did and didn’t help, etc. I also remember the claim “Macs don’t need defragging” but I don’t know if HFS(+) was actually any less prone to fragmentation than FAT32 was. Companies like Symantec were happy to sell defragging tools to Mac users regardless.