Find the rhymes hiding inside your lines, not just at the end of them — plus the multi-syllable chains and the accidental ones.
End rhyme is the only kind most writers check, and it is the kind listeners notice least. Internal rhyme is what makes a line feel engineered rather than assembled: two words three syllables apart that share a sound. It is also easy to produce by accident, which is the second thing this tool looks for — a word in the middle of a line that rhymes with the word at the end usually reads as a stumble.
Run it and the rhyme map shows up here.
Why internal rhyme is what makes a line feel written
Put two matching sounds close together inside one line and the ear hears a shape. “I kept the letter you left on the shelf by the meter” has three words sharing a vowel over eleven syllables, and the line feels locked together even though nothing rhymes at the end. Remove the middle one and the same line reads like prose with a line break.
The catch is that internal rhyme is symmetric: it either looks deliberate or looks like an accident, and the difference is density. Two matching sounds in one line is a device. Three is a pattern. Four is a tongue-twister. This tool counts them per line so you can see which side of that line you are on.
How to use the result
- Two internal matches per line is the sweet spot in most genres. Above three, the line starts calling attention to its own construction.
- An accidental rhyme — a mid-line word rhyming with the line’s end word — is worth rewriting. The listener hears a rhyme forming, expects it to land, and it has already landed too early.
- Multi-syllable chains are the highest-status thing on this page. Matching two syllables (“motivation / hesitation”) is what separates a competent verse from one that sounds effortless.
- Check the vowel-only matches as well as the exact ones. Shared vowels without shared endings is assonance, and in sung lines assonance carries further than consonance does.
Questions people ask
- Why does it flag a rhyme I meant to put there?
The accidental-rhyme check only fires when a mid-line word matches the last word of the same line. If you wanted that, ignore it — the check exists because most of the time it is unintentional.
- The matches look wrong on some words.
They will be. This works from spelling, and English spelling is not pronunciation: “love” and “move” share letters and no sound, while “though” and “low” share a sound and almost no letters. Use it to find candidates, then read them aloud.
- What counts as a multi-syllable chain?
Two consecutive words whose combined last two vowel-groups match the same pattern in another pair of consecutive words, anywhere in the text. It is a strict test, so finding any is meaningful.
- Does internal rhyme work in every genre?
No. It is central to hip-hop and to a lot of contemporary pop, and it can sound mannered in a plain-spoken country verse. The count matters less than whether it fits the voice of the song.
What this tool does not do. It compares spellings, not sounds. It cannot hear your song and it does not know how you pronounce anything, so it will miss real rhymes it cannot see and flag matches that do not sound alike. Every result here is a candidate for your ear to confirm, not a finding. Nothing is uploaded; everything runs in your browser and works offline. See the site disclaimer. Written by Nico, who builds these tools and writes about writing at WrittenTone.