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About this tool
Check a three-line haiku draft against the 5-7-5 pattern and collect rewrite notes.
Haiku Syllable Checker helps organise a three-line poem draft against the familiar 5-7-5 structure. Paste your lines, note the theme, and use the working note to spot lines that may need tightening.
Open Haiku Syllable Checker on AltFTool — it loads instantly in your browser.
Paste or type the text you're working with.
Choose how it should be transformed or analyzed.
Copy the finished text into your document or post.
Keeps attention on the three-line pattern.
Suggests where to shorten or expand.
Useful for learning the form without overcomplicating it.
English syllable counting can be fuzzy; use the output as a practical guide.
Many modern haiku vary, but 5-7-5 is a useful classroom and prompt structure.
Yes, but checking one poem at a time keeps the result clearer.