Sonnet Checker
Check a poem's fourteen lines and rhyme pattern using heuristics.
Quick answer: enter your details below and click Check Sonnet — your result appears instantly, right here in your browser. Nothing you enter is uploaded or stored.
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How to use
- Paste your fourteen-line poem.
- Click Check Sonnet.
- Read it aloud to judge rhyme and metre.
About this tool
Paste a poem and the tool counts its lines and checks the last-word endings against a Shakespearean ABAB CDCD EFEF GG pattern. This is a heuristic check on endings, not a true rhyme or metre judge — read the poem aloud for a final verdict.
Frequently asked questions
Is the check exact?
No, it compares last-word endings as a heuristic; true rhyme and iambic metre need a human reading.
Are there other sonnet forms?
Yes, the Petrarchan sonnet uses an octave and sestet, typically ABBAABBA CDECDE.