Press the key which sounds like the Greek character you want to type. For example, to type ζ (zeta), press Z. Type accented letters with Alt — for example, to type ύ, ϋ or ΰ, hold Alt and press U one, two or three times.
Press Alt + Enter to turn the Greek layout on and off.
Stop the mouse over each button to learn its keyboard shortcut.
Shift + click a button to insert its upper-case form. Alt + click a button to copy a single character to the clipboard.
You can select text and press Ctrl + C to copy it to your document. In your target document, press Ctrl + V, or, if you want to paste the text without formatting, try Ctrl + Shift + V.
This online Greek keyboard is designed for typing Modern Greek, not Ancient Greek letters. If you’re looking for an Ancient Greek keyboard, check out this one by Randy Hoyt.
Although Modern and Ancient Greek use the same alphabet, Ancient Greek uses 7 different diacritical signs (accents, breathings, etc.) that are placed over letters in various combinations. In Modern Greek, the number of diacritical signs has been reduced to 2 — the tonos (´) and the rarely used dialytika (¨).
This online Greek keyboard is based on the “Beta Code” keyboard layout, which tries to match Greek characters to QWERTY keys based on sound — for example, the letter ν (nu), which sounds like n, is typed by pressing N.