Terms of Service

Effective 15 September 2026.

Using JustDefrag

These terms apply to justdefrag.com. JustDefrag is a free browser simulation for entertainment and nostalgia. No account, payment or download is needed. Its disk map is imaginary: it does not access your files, defragment a disk or improve your computer’s performance.

Responsible use

You are welcome to use the simulator and share links to it. Use the service lawfully. Do not deliberately disrupt it, bypass its security or use it to harm others.

Availability

We aim to keep the simulator available, but it may contain bugs, change or be temporarily unavailable. It is not a diagnostic or repair tool. Nothing in these terms limits rights or remedies that applicable law does not allow us to exclude.

Advertising and external links

Advertising, when displayed, is labeled. You do not need to click advertisements to use the simulator. Links to other websites take you to services with their own terms and privacy practices.

Privacy and reporting

Our Privacy page explains hosting information, advertising, optional analytics and your choices. JustDefrag Reports is a separate tool used by the site operator to read this site’s Google Analytics and AdSense reports. Visitors do not need to connect a Google account.

Names and credits

JustDefrag is an independent project and is not affiliated with Microsoft. Windows and MS-DOS names identify the interfaces being recalled. Third-party assets remain subject to their respective licenses; see the About page for credits.

Changes to these terms

We may update these terms as the service changes. The effective date above identifies the current version. Updates do not remove rights you already have under applicable law.

Contact

For support or questions about these terms, email info@justdefrag.com.