[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"content-seo:keyboardTest":3},{"description":4,"seo":5,"faq":8},"A free keyboard tester that runs in your browser. Press each key and it lights up on an on-screen US (ANSI) board of 78 keys — the main block, F-keys and arrows. Keys that have registered stay tinted, so a key that never lights up is easy to spot. Hold several keys at once and the “Held now” counter shows how many reach the browser together, which is how you check rollover and catch ghosting. Keys are matched by physical position, so UK, AZERTY and QWERTZ boards work too. No download or install.",{"ogTitle":6,"ogDescription":7},"Keyboard Test Online | Dead Keys, Ghosting & Rollover - Giggleus","⌨️ Press every key and see which ones never light up. Check ghosting and rollover in your browser — no install.",[9,12,15,18],{"question":10,"answer":11},"How do I find a dead key on my keyboard?","Press every key once. Each key that registers stays tinted on the on-screen board, so any key still blank afterwards is the one to check.",{"question":13,"answer":14},"Can I test anti-ghosting and N-key rollover?","Yes. Hold several keys together and read the “Held now” counter: it shows how many keys reach the browser at the same time. A key lighting up that you didn't press is ghosting.",{"question":16,"answer":17},"Does it work with UK, AZERTY or other layouts?","Yes. Keys are detected by physical position (event.code), so the right spot lights up on any layout, but the board is drawn as US ANSI with US legends. The numpad, navigation cluster and the extra ISO key aren't drawn; they still show under Last key.",{"question":19,"answer":20},"Why don't Fn, the Windows key or Print Screen register?","Fn is handled inside the keyboard and never sent to the computer, and the OS or browser often grabs Win\u002F⌘, Print Screen and shortcuts like Alt+Tab before the page sees them. That doesn't mean the key is broken."]