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Open Source (MIT License) · 20+ Million Downloads

CrystalDiskInfo is a comprehensive HDD/SSD utility software that supports S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology). It is fully open-source, lightweight, and designed to provide complete visibility into your storage device's condition. Monitor S.M.A.R.T. attributes, disk temperature, and drive health in real-time to prevent data loss. Download Now

Features

Discover the powerful tools that make CrystalDiskInfo the industry standard for disk health monitoring.

S.M.A.R.T. Analytics:

Detailed analysis of Reallocated Sectors, Power On Hours, and Raw Error Rates.
Deep dive into raw values of S.M.A.R.T. attributes like Read Error Rate, Power-On Hours, and Reallocated Sector Count.
Threshold customization, automatic health assessment logic, and raw SMART value inspection. Health status at a glance to help prevent unexpected drive failure.

Real-Time Alerts:

Receive instant email notifications when drive health deteriorates or temperatures exceed safe thresholds, ensuring 24/7 monitoring.
Runs quietly in the system tray with customizable alarm sounds to warn you immediately of any critical status changes.
Configure thresholds for temperature and health so you act before data loss.

Drive Control:

Advanced control over Automatic Acoustic Management (AAM) and Advanced Power Management (APM) settings to balance noise and performance.
Adjust AAM (Noise) and APM (Power) settings directly on supported hard drives. Quiet down a noisy hard drive or maximize performance at the cost of power.
Support for compatible HDDs and SSDs.

Visual Graphs:

Visual historical trends of S.M.A.R.T. attributes, allowing you to track degradation patterns over time.
Track temperature history and health trends over time. Total host writes/reads for SSDs; power-on hours and count tracking; tray icon temperature display.
Historical data to spot degradation early.

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Screenshot for the software

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