Overview

What is CrystalDiskInfo?

CrystalDiskInfo is a comprehensive HDD/SSD utility that supports S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology). Open-source, lightweight, and built to give you complete visibility into your storage device's condition.

IT Administrators

Monitor fleets of workstations and servers to predict drive failures before they cause data loss.

PC Enthusiasts

Keep your gaming rig or workstation at peak performance by monitoring NVMe SSD temperatures.

Developers

Verify storage integrity and performance when building I/O intensive applications.

Capabilities

Key Features

Discover the tools that make CrystalDiskInfo the standard for drive health monitoring.

AAM-APM Control

Advanced control over Automatic Acoustic Management and Advanced Power Management to balance noise and performance.

Alert Mail

Get email notifications when drive health drops or temperatures exceed safe limits for 24/7 monitoring.

General Info

Overview of firmware, serial numbers, interface details, and transfer modes for all connected drives.

Graph of S.M.A.R.T. Info

Visual historical trends of S.M.A.R.T. attributes so you can track degradation over time.

Resident and Alarm

Runs in the system tray with customizable alarms to warn you of critical status changes.

S.M.A.R.T. Information

Deep dive into raw S.M.A.R.T. values like Read Error Rate, Power-On Hours, and Reallocated Sector Count.

Все расширенные возможности

Who Is This System Monitor For?

Proactive Drive Health Monitoring

Stay ahead of failures with S.M.A.R.T. diagnostics. CrystalDiskInfo reads critical attributes from your HDDs and SSDs so you can act before data is at risk.

Temperature & Health at a Glance

View temperature trends and health graphs in one place. Spot overheating and degrading drives quickly.

Acoustic and Power Management

Tweak AAM and APM for a balance between quiet operation and performance on supported drives.

Interface

Screenshots Gallery

Click any image to view full size.

Other Products

More system utilities for performance testing and benchmarking.

CrystalDiskMark

Disk Benchmark

Measure sequential and random read/write speeds of your storage devices with this straightforward benchmark tool.

Download CrystalDiskMark

CrystalMark Retro

Comprehensive Benchmark

CPU & Storage Benchmark
2D Graphics (GDI)
3D Graphics (OpenGL)

Download CrystalMark Retro

Why Choose Us

CrystalDiskInfo vs. Alternatives

See how our system monitor compares to other disk utility tools.

Feature	CrystalDiskInfo	Hard Disk Sentinel	HD Tune Pro	HDDScan
Price / License	Free (Open Source)	Paid (~$30)	Paid (~$35)	Free
Primary Focus	SMART Monitoring	Repair & Enterprise	Benchmarking	Diagnostics
Interface	Modern / Anime	Industrial	Dated	Simple
Surface Scan	No	Yes (Advanced)	Yes (Basic)	Yes (Good)
Real-time Alerts	Yes (Tray/Sound)	Yes	Limited	No

* Recommendation: Use CrystalDiskInfo for continuous drive health monitoring; use another tool if you need deep surface repair.

Choose Your Edition

Multiple themes to match your style. All editions are 100% free.

Standard Edition

Classic lightweight design.

Aoi Edition

Aoi character theme.

Shizuku Edition

Shizuku character theme.

Kurei Kei Edition

Kurei Kei character theme.

User Reviews

Trusted by millions. Here's what the community says.

Joseph Marketer

Jan 9, 2026

"Detected my SSD speeds instantly. Faster than other tools. Solid 4.5/5."

★★★★½

Alex409

Sep 9, 2025

"Simple, effective, does exactly what it says. Approved."

★★★★★

PaulTemps667

Aug 6, 2025

"Must-have for tech enthusiasts. Accurate SMART data, predicts failures. Lightweight and free."

★★★★★

Tanim MIUI

Apr 16, 2025

"Fantastic utility! Works perfectly."

★★★★★

CairoRipper824

Jan 31, 2025

"Smart design, incredibly easy to use. Thanks!"

★★★★★

SteveAce

Jan 2, 2025

"Essential for every PC user. Extremely useful."

★★★★★

Lyndos

Nov 26, 2024

"Easiest way to monitor SMART status."

★★★★★

MJA Tanim

Oct 10, 2024

"Simple approach, highly effective results."

★★★★★

Michael007

Sep 3, 2024

"Worked out of the box. Auto-detected all my drives."

★★★★★

MSmith935

Aug 27, 2024

"Lightweight but powerful. Saved me from data loss."

★★★★★

Joseph Marketer

Jan 9, 2026

"Detected my SSD speeds instantly. Solid 4.5/5."

★★★★½

Alex409

Sep 9, 2025

"Simple, effective. Approved."

★★★★★

PaulTemps667

Aug 6, 2025

"Must-have. Accurate SMART, predicts failures. Free."

★★★★★

Tanim MIUI

Apr 16, 2025

"Fantastic! Works perfectly."

★★★★★

CairoRipper824

Jan 31, 2025

"Smart design, easy to use."

★★★★★

Frequently Asked Questions

Common questions about drive health, compatibility, and usage.

Все вопросы →