
See exactly what is inside your Windows PC - parts, speeds and live temperatures
Speccy answers a question every PC owner asks eventually: what exactly is inside this machine? Made by Piriform, the team behind CCleaner, it reads your hardware directly and lays everything out in one window - CPU, motherboard, RAM, graphics card, storage, audio, network and operating system - with the part numbers, speeds and temperatures that Windows itself tends to hide. The free version covers everything most people need, and the current release, 1.34.84 (June 2026), is a 20.5MB download.
Open it and you get a summary first: processor model, RAM amount, motherboard, GPU and storage at a glance, each with a live temperature where a sensor exists. Drill into a category and the detail gets serious. The CPU page lists cores, threads, stock and current clock speeds, cache sizes and supported instruction sets. The RAM page shows every slot - type, size, speed and manufacturer of each stick - which is exactly the information you need before buying an upgrade. Storage pulls S.M.A.R.T. attributes from each drive, so a failing disk can show warning signs before it dies. The network section lists adapters, IP addresses and Wi-Fi details, and the operating system page covers the Windows version, installed updates and security settings.
That combination makes Speccy the right tool for two common jobs. The first is upgrade planning: instead of guessing whether you have a free DIMM slot or which DDR generation your board takes, you read it off the screen. The second is support: when a friend, forum or help desk asks for your specs, you save a snapshot or export the report as XML or plain text and send the file instead of typing model numbers by hand. Snapshots can be reopened later in Speccy, which also makes them handy for comparing a PC before and after a repair.
The free edition is the full hardware analyzer; Piriform sells a Speccy Professional upgrade that adds automatic updates and priority support, nothing more. The honest limitations are platform and pace. Speccy is Windows only - Mac and Linux users need something else entirely. And releases are rare: version 1.34 arrived more than two years after 1.33, so this is a maintained tool, not a fast-moving one. The dense tables can also intimidate beginners, though the summary page stays friendly.
For identifying parts, checking temperatures and documenting a Windows PC, Speccy remains the small, free utility that technicians reach for first.
Live sensor readings for CPU, GPU, motherboard and drives, right on the summary page.
CPU, RAM, motherboard, graphics, storage, audio, network and OS details in one window.
Reads drive attributes so a failing disk can warn you before it dies.
Save .speccy snapshots or export XML and plain-text reports for support or records.
Yes. Speccy is free for home use and the free edition is the complete hardware analyzer. Piriform sells a Speccy Professional upgrade that adds automatic updates and priority support, nothing more.
Yes. Where sensors exist, Speccy shows live temperatures for the CPU, GPU, motherboard and hard drives or SSDs, right on the summary page.
No. Speccy is Windows only, and Piriform offers no Mac or Linux version. For those platforms you need a different tool, such as Hardinfo or inxi on Linux.