Free PC Tools and Calculators
Free calculators, guides, and PC software to help you get more out of your computer.
Most Popular Tools
The calculators visitors reach for most often.
More Than Just Hardware Tools
Our PC tools also cover displays, networking, and developer utilities like JSON and text converters. If you have a question about your computer, there's probably a free tool here to help.
Learn About Computers
Practical guides on computer hardware, software, and technology written from real-world experience.
Parts of a Computer and Their Functions
Learn what each component inside a PC does and how they all work together.
PC Airflow Optimization: How to Cool Your Computer (Fan Placement Guide)
Set up your case fans correctly to keep temperatures low and reduce dust buildup.
How to Check If a GPU Is Working Properly (Signs, Tests & Fixes)
Test your graphics card using Task Manager and MSI Afterburner. Covers monitoring tools, benchmarking, and common GPU problems with fixes.
What Is a Monitor and the Various Types (Types and Specs Explained)
A complete guide to monitor panel types, resolutions, refresh rates, and connection options.
Parts of a Motherboard and Their Functions
A complete breakdown of every major motherboard component including the CPU socket, chipset, RAM slots, PCIe slots, SATA ports, M.2 connector, BIOS chip, and rear I/O panel.
Why Do Computers Slow Down with Age?
The real reasons older PCs feel sluggish and what you can do to speed them up.
PC Software
Free PC software built to help you get more out of your computer. The CIB PC Reporter surfaces hardware details, temperatures, drive health, and driver info in one clean, exportable report.