2-Set Hangul — 두벌식, Dubeolsik — is the layout on virtually every Korean keyboard: one set of consonant keys under the left hand, one set of vowel keys under the right. Type the letters and the input engine snaps them into syllable blocks — ㅎ, ㅏ, ㄴ become 한. Below is the full arrangement, the logic of the split, and the standardization fight it won against a famously faster rival.
Consonants fill the left half of the letter block and vowels the right — only ㅠ strays across the middle onto the B key. The small corner characters are the Shift layer: it matters on the five tense consonants ㅃ ㅉ ㄸ ㄲ ㅆ and on ㅒ and ㅖ; on every other letter key Shift types the same jamo. Digits and punctuation stay exactly where QWERTY puts them. This is the exact layout behind the free AnyKeyboard Korean keyboard linked below.
The name describes the design: Hangul's letters are divided into two sets — beol (벌) means a set — with the 14 basic consonants under the left hand and 12 vowels under the right (only ㅠ strays onto the border B key). Because Korean syllables alternate consonant and vowel, the split makes the hands alternate too, the same virtue Dvorak chases for English. The arithmetic is elegant: 14 consonants plus 12 vowels — the 10 basic vowels and the everyday compounds ㅐ and ㅔ — come to exactly 26 keys, so all of Hangul fits into QWERTY's letter block with digits and punctuation untouched.
You never type a syllable directly; you type a stream of jamo and the input engine assembles the blocks live. Press ㅎ, ㅏ, ㄴ and the screen shows ㅎ, then 하, then 한. Because the same keys serve initial and final consonants, the engine constantly reinterprets boundaries — type 오늘 and you watch 온 become 오느 before settling as 오늘, the letter visibly hopping between blocks. Koreans call this flicker the dokkaebi-bul, the will-o'-the-wisp. Shift covers what the 26 keys cannot: the tense consonants ㅃ ㅉ ㄸ ㄲ ㅆ sit above their plain versions, and compound vowels are simply typed in sequence — ㅗ then ㅏ makes ㅘ.
Dubeolsik is the unchallenged default across the Korean-speaking world: every desktop OS and phone platform ships it as the standard Korean layout, and keyboards sold in South Korea come dual-printed with Hangul and Latin QWERTY sharing the caps, plus dedicated 한/영 (Korean/English) and 한자 (Hanja) keys beside the spacebar. North Korea standardized a different arrangement of its own, so strictly speaking this is the South's layout — the one the rest of the world means by a Korean keyboard.
Hangul typewriters struggled for decades with the script's two-dimensional syllable blocks, and by mid-century Korea had rival machines built on two-set, three-set, four-set, and even five-set divisions of the alphabet. The most celebrated was the three-set typewriter that ophthalmologist Kong Byung-woo introduced in 1949 — the first Hangul machine fast enough for professional use, beloved by journalists and the military, and the ancestor of today's Sebeolsik layouts.
In 1969 the South Korean government imposed order, standardizing a four-set design for mechanical typewriters and a two-set arrangement for teletype machines. When personal computers arrived, the computer-keyboard standard of the early 1980s settled on the two-set arrangement — today codified as KS X 5002 — and the format war was over. Kong's camp kept refining its alternative, culminating in the Sebeolsik Final arrangement of 1991, and its partisans still make a strong efficiency case; like Dvorak against QWERTY, it never overcame the installed base.
Computers and phones carried Dubeolsik everywhere. Korean desktop keyboards added the 한/영 and 한자 keys, and smartphones either shrink the same 26-key arrangement onto glass or swap in compressed 10-key methods like Cheonjiin — but the two-set principle, consonants one side and vowels the other, has not budged in over half a century.
두벌식 translates roughly as two-set style: the alphabet is split into one set of consonant keys (left hand) and one set of vowel keys (right hand). Unlike QWERTY or ЙЦУКЕН, the name describes the design principle rather than the top row. Sebeolsik, the three-set rival, splits Hangul into initial consonants, vowels, and final consonants — three sets, three zones.
A Korean input engine (IME) composes them live. You type the jamo in spoken order — ㅎ, ㅏ, ㄴ — and the display updates from ㅎ to 하 to 한. The engine also re-splits blocks on the fly: typing 오늘 shows 온, then 오느, then 오늘 as each new letter arrives, a flicker Koreans nickname the dokkaebi-bul (will-o'-the-wisp). The keyboard itself is just 26 letter keys; the block-building is software.
2-Set uses one key per consonant, so the same ㄱ key serves the start of 가 and the end of 억, and tense consonants need Shift. Kong Byung-woo's 3-Set gives initial consonants, vowels, and final consonants separate keys — typing feels more like stenography, with less Shift use and, advocates argue, real speed and comfort gains. The government standardization that began in 1969 went with two-set, and network effects did the rest: Sebeolsik survives as an enthusiast option in every Korean OS.
Always. Physical keyboards in South Korea are dual-printed, Hangul and Latin QWERTY sharing every keycap, because Korean computing mixes scripts constantly. A dedicated 한/영 (Han/Yeong) key beside the spacebar toggles between Korean and English input, and a 한자 key converts Hangul words to Chinese characters when needed.
Yes — the free AnyKeyboard Korean keyboard linked below runs the exact layout in the diagram in your browser. Click the keys or type on your own keyboard and watch the jamo merge into syllable blocks as you go, then copy the text anywhere. It is the easiest way to feel the consonant-left, vowel-right rhythm before enabling Korean input system-wide.