🎮

Defrag98

Free
Games & Entertainment

Defrag98 recreates the Windows 98 Disk Defragmenter in your browser, down to the window chrome and the bitmap fonts. Pick one of four drives, press Start, and watch the cluster grid sort itself out to the sound of a grinding hard disk. It touches no real files. Installs to your home screen from any modern browser — no app store, no download; its manifest declares standalone display with a 512px icon, and its service worker caches assets for offline use. Submitted by its author and measured on 2026-08-31.

Catalogued August 31, 2026 · Curated by PWA Directory team
🎮Defrag98
defrag98.com

Defrag98 opens in a browser tab — no download.

Works Offline
Installable
Cross-Platform
✓
Free

Not sure how to add Defrag98 to your home screen? Step-by-step for Chrome, Safari, Firefox and Edge — it takes about ten seconds, and there is no app store involved.

Own Defrag98? Have us re-run this measurement — we open it in a real browser, cut the network, and send you what survived.

Tags
recreateswindowsdiskdefragmenterdownwindowpwainstallableoffline

How to install Defrag98 as a PWA

Chrome / Edge
Menu (⋮) → Add to Home screen
Safari (iOS)
Share (↑) → Add to Home Screen
Firefox
Menu (⋮) → Install

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