Haiku Checker

A free, fast, and ad-free Haiku Checker that instantly counts syllables per line and validates the classic 5–7–5 structure as you type. Perfect for poets, students, and teachers—also known as a Haiku Syllable Counter.

Line 1 Syllable Count
0 / 5
Line 2 Syllable Count
0 / 7
Line 3 Syllable Count
0 / 5
Aim for 5 syllables, then 7, then 5. Counts update in real time.
Waiting for 5–7–5

How to Use

  1. Type your poem into the box above — one line per row.
  2. Watch each line’s syllable counter (targets are 5 / 7 / 5).
  3. If you go over three lines, you’ll see a warning.
  4. Click Copy Text to copy your haiku.

Tips & Notes

  • English syllable counting is heuristic; edge cases exist (e.g., poem, fire, hour).
  • The badge turns green when your lines match 5–7–5 exactly.
  • For classroom use, consider tweaking the exception list in code.

FAQ

Does a haiku have to be exactly 5–7–5? In English, that’s the common teaching pattern. Many contemporary poets use fewer or more syllables — your call!

Example (5–7–5):

Autumn moonlight (5)
A worm digs silently (7)
into the chestnut. (5)

Tip: Type the three lines above into the checker and you should see counts of 5 / 7 / 5.