Computer Serial Number Finder

The quickest way to find the serial number on Windows, Mac, Linux and Chromebook: the right steps and a one-click copy command.

Find your computer's serial number in seconds, on Windows, Mac, Linux and Chromebook. The extension recognises your operating system and shows the shortest way to the serial number, with a ready-to-copy command. No searching, no outdated instructions. Works on laptops and desktops from any maker. WHAT IT DOES • Detects Windows 10/11, macOS, Linux and ChromeOS automatically • Step-by-step instructions for each system, with one-click copy • Windows: uses a PowerShell command that works on every Windows 10 and 11 PC. The old “wmic bios get serialnumber” command no longer works, because wmic has been removed from Windows 11. • Mac: shows where the number appears in “About This Mac”, plus a Terminal command • Chromebook: shows the sign-in screen shortcut and the system page that display the serial number • Explains meaningless results such as “To be filled by O.E.M.” and shows how to read the motherboard's serial number • This Computer tab: processor, memory, graphics, screen resolution and browser version, ready to paste into a support request WHERE ELSE TO FIND IT If the computer won't turn on, the serial number is printed on the label under the device or in the battery bay, and on the box, next to “S/N” or “Serial”. On Dell computers it is called the Service Tag. WHY DOESN'T IT READ THE NUMBER BY ITSELF? For your security, browsers are not allowed to read hardware serial numbers. An extension could only do it by making you install a separate program. This one never does: it shows you exactly where the number is, in a few seconds. PRIVACY Nothing leaves your computer. No account, no sign-up, no data collection. LANGUAGES English, Türkçe, Español, Português, Français, Deutsch, Русский, 日本語, 简体中文, Bahasa Indonesia, العربية