Keyboard Test Online
Use this keyboard test online to check every key, test keyboard ghosting and NKRO combos, spot key chatter, and estimate polling rate without installing software.
Teste de teclado
Pressione teclas para destacá-las em tempo real. Suporta vários layouts, idioma das teclas, histórico de combos, som e reset.
- Use o seletor de layout para combinar com seu teclado físico (ANSI/ISO/TKL).
- Mude o idioma das teclas para trocas de Z/Y ou legendas regionais.
- Resetar limpa os destaques e o histórico de combos para começar de novo.
- O banner de conclusão aparece quando todas as teclas do layout forem testadas.
Teclas testadas para o layout atual
What Each Keyboard Test Does
Each mode helps you catch a different kind of keyboard problem.
Key Test
Press each key and watch it light up on the layout. If one key never responds, you are likely dealing with a dead switch, debris under the cap, or a connection issue.
Keyboard Ghosting Test
Hold several keys at once to see whether they all register together. This is the quickest way to spot rollover limits and the combos your keyboard struggles with.
Key Chatter Test
Tap the same key a few times and watch for extra inputs. If one press turns into two, the switch may be worn or the debounce setting may be too aggressive.
Keyboard Polling Rate Test
This gives you an estimate of how often the keyboard reports to your computer. It will not fix latency by itself, but it can show whether your board is running slower than expected.
O que é um teste de teclado?
Este teste de teclado inclui um teste de taxa de polling do teclado para você ver os Hz do seu dispositivo enquanto digita. Um teste de teclado detecta e exibe cada pressionamento em tempo real, verificando se todas as teclas, incluindo teclas de função, modificadores como Ctrl e Alt e teclas especiais, funcionam corretamente. É útil ao comprar teclados usados, resolver problemas de entrada ou testar teclados mecânicos novos. Este testador no navegador não requer instalação e suporta layouts ANSI, ISO e TKL.
O que é um teste de taxa de polling do teclado?
Um teste de taxa de polling do teclado mede com que frequência o teclado envia os estados das teclas ao computador, em Hertz (Hz). Taxas mais altas reduzem a latência de entrada e melhoram a resposta. Faça o teste no navegador para detectar configurações baixas ou gargalos USB sem software extra.
Como este teste de teclado funciona
Nosso tester de teclado usa eventos de teclado em JavaScript para capturar cada tecla pressionada e liberada em tempo real. Quando voc? pressiona uma tecla, o navegador dispara eventos keydown e keyup que detectamos e mostramos no teclado virtual. Registramos c?digos de tecla, estados de modificadores (Shift, Ctrl, Alt) e combina??es. Todo o processamento ocorre localmente no navegador, sem enviar dados, garantindo privacidade total.
Precis?o e limita??es
Este teste no navegador detecta a maioria das teclas em teclados padr?o. Limita??es: algumas teclas do sistema (Print Screen, certas teclas de fun??o) podem ser interceptadas pelo sistema operacional antes de chegar ao navegador. Limites de anti-ghosting variam por hardware. Teclas multim?dia e especiais podem n?o ter suporte completo. Para testar atalhos de sistema, considere ferramentas nativas.
Como interpretar seus resultados
Resposta das teclas
As teclas devem acender imediatamente ao serem pressionadas e voltar ao normal ao soltar. Respostas lentas ou falta de resposta podem indicar problemas nos switches ou compatibilidade do navegador.
Problemas de ghosting
Se ao pressionar v?rias teclas surgirem entradas inesperadas ou algumas teclas n?o forem detectadas, seu teclado pode ter limites de anti-ghosting. Teclados gamer geralmente lidam melhor com isso.
Teclas modificadoras
Shift, Ctrl, Alt e Cmd/Win devem registrar e combinar corretamente com outras teclas. Problemas aqui podem indicar falhas de driver ou hardware.
When to Test Your Keyboard
A quick check is useful in more situations than most people expect.
Gaming
Test the combos you actually use in game, especially movement keys with Shift, Ctrl, or Space. If one key drops out, you have found the problem before it costs you a match.
Testing a Used Keyboard
Before you buy a second-hand board, run through every key once. It takes a minute and can save you from bringing home a keyboard with dead keys or double typing.
After a Spill or Cleaning
After a spill or deep clean, keys can feel fine and still misfire. A full pass through the tester is an easy way to catch sticky, slow, or inconsistent switches.
Diagnosing Typing Issues
If letters are missing, repeating, or showing up at the wrong time, use the key, chatter, and combo tests together. You will usually narrow the issue down pretty fast.
Keyboard Troubleshooting Guide
These are the problems people usually find first, and what to try next.
Key Not Registering (Dead Key)
Usually this means dirt under the keycap, a worn switch, or a loose connection. Pull the cap, clean the area with compressed air, and test again. If the board is hot swap, replacing the switch is the next thing to try.
Key Chatter / Double Input
Double inputs usually come from aging switch contacts or debounce settings that are too short. If your keyboard software allows it, increase debounce time first. If that does not help, clean or replace the switch.
Keyboard Ghosting
Ghosting usually comes from the keyboard matrix itself, which is common on cheaper membrane boards. Check which combos fail most often. If those combos matter to you, you may need a keyboard with better rollover support.
Keyboard Testing Glossary
A few terms show up a lot in keyboard discussions. Here is what they mean.
- NKRO (N-Key Rollover)
- NKRO means the keyboard can register every key you are holding at the same time, not just the first few. It matters most for games, shortcuts, and very fast typing.
- Key Ghosting
- Ghosting happens when some keys in a combo do not register, or the keyboard reports a key you never pressed. It usually comes from the way the keyboard matrix is wired.
- Key Chatter
- Key chatter is when one press turns into two or more inputs. Older mechanical switches and bad debounce settings are common causes.
- Debounce Time
- Debounce time is a short delay in firmware that filters out accidental repeat signals after a press. Too little can cause chatter. Too much can make fast taps feel inconsistent.
- Polling Rate
- Polling rate is how often the keyboard reports its state to the computer each second. Office keyboards often sit around 125 Hz, while gaming boards commonly run at 1000 Hz or more.
FAQ do teste de teclado
Perguntas comuns sobre teclas e layouts.
Keyboard Care Tips
A little maintenance goes a long way, especially if you use the board every day.
Clean Keycaps Regularly
Dust and crumbs build up faster than people think. Pull the caps now and then, brush the plate, and clear loose debris before it starts affecting switches.
Avoid Liquids Near Your Keyboard
Spills are still the fastest way to ruin a good board. If it happens, unplug it right away, turn it upside down, and give it enough time to dry before you test anything.
Use the Right Switch for Your Need
If you hate your keyboard, the switch type may be part of the reason. Linear switches feel smooth, tactile switches add a bump, and clicky switches are loud on purpose. Pick what matches how you actually use the board.
Update Keyboard Firmware
Some boards get real fixes through firmware updates, especially for debounce or polling problems. If your keyboard has companion software, check for updates before assuming the hardware is bad.
Related Hardware Tests
More free tools to check your setup.
Key Rollover Test
Test keyboard anti-ghosting and N-key rollover (NKRO) by pressing multiple keys simultaneously and seeing which register.
Typing Speed Test
Measure your typing speed in words per minute (WPM) and accuracy. Choose 30s or 60s mode with color-coded word feedback.
Mouse Test
Check left click, right click, middle click, scroll wheel up/down, and double-click issues online.
Input Lag Test
Measure browser-level click-to-frame latency using requestAnimationFrame. See average, best, and worst lag across 10 clicks.
Mouse Polling Rate Test
Check mouse polling rate and mouse Hz with median, peak, distribution, and stability metrics.
Sobre este teste
Metodologia: Nossa metodologia usa APIs web padr?o (KeyboardEvent) compat?veis com navegadores modernos. Os testes s?o projetados para precis?o e repetibilidade.
Sobre: O HardwareTest oferece diagn?sticos gratuitos e focados em privacidade. Todos os testes rodam totalmente no navegador, sem coleta de dados.
Aviso legal: Esta ferramenta oferece detec??o de teclas no n?vel do navegador. Algumas teclas do sistema podem ser interceptadas pelo sistema operacional. Para testes completos, talvez seja necess?rio usar v?rios navegadores.