ABNT2 keyboard test

ABNT2 is the keyboard layout most commonly used in Brazil. It includes specific keys like Ç, dedicated accent keys and the ~ bar, plus a set of AltGr symbols. This guide explains how to validate all of them using theonline keyboard test in ABNT2 mode.

What makes ABNT2 unique

On ABNT2, the Ç key has a fixed, dedicated position. Acute (Á) and circumflex (Â) accents are produced by a dead key next to L, and the tilde (~) has its own key on the number row. AltGr also exposes symbols such as °,ª and º. The ABNT2 tester shows those variations as extra legends on each key.

Keys to validate first

• Number row with Shift and AltGr to confirm dual and tertiary symbols.
• Accent keys (acute, circumflex, tilde, grave), alone and combined with vowels.
• Ç key to confirm the cedilla.
• Spacebar, usually the largest key, must respond to every touch.
• Numpad block, especially if you work with spreadsheets.

Combine the ABNT2 test with anti-ghosting

Heavy gaming or productivity work often combines modifier keys with letters and numbers. Enableanti-ghosting mode and try combinations like Ctrl + Shift + F andAltGr + number to confirm the keyboard registers them all simultaneously. If a specific combination fails, that's the keyboard's physical limit, not a software defect.

Watch out for stuck AltGr and Shift

On some systems, pressing AltGr can trigger a system shortcut silently. If the tester shows a key as stuck after you release AltGr, click on a neutral area of the page to make sure the browser dropped focus. If the issue persists, test the keyboard on another operating system to rule out driver issues.