Run a 75% keyboard tester with F-row, alpha block, and arrow cluster — no numpad block. Each press pushes the matching keycap down on an accurate compact diagram.
Keychron K-series, GMMK compact, and similar 75% boards fit this F-row + arrow layout without a numpad column.
Compare feel against the TKL toggle — 75% keeps arrows tight to the alpha block while TKL adds a dedicated nav cluster column.
Press keys on your 75% board — the virtual layout mirrors F-row + compact nav + arrows.
Toggle to 60%, TKL, or full-size if you want to compare layout sizes.
Check arrow and function keys separately — common failure points on compact boards.
Read the CODE field for system key codes when troubleshooting VIA or QMK layers.
Reset tested keys after swapping keycaps or cleaning.
Most 75% layouts include Esc, F1–F12, the full alpha block, bottom row modifiers, and an arrow cluster. They omit the numpad and often omit Insert/Home/Page Up columns found on full-size boards.
TKL (tenkeyless) is usually ~87 keys with a dedicated Ins/Home/PgUp column above arrows. 75% compresses further — arrows sit beside the alpha block with fewer nav keys. Use both toggles here to see which matches your board.
