How to use the rhyme binder
- Paste lyrics or text into the box. Each line break starts a new line, so write lyrics one line at a time.
- Under "Basis" choose whether to compare vowels only or vowels with final consonants, and under "Scope" choose the last one to three syllables or every syllable.
- Syllables or words with the same rhyme are painted the same color. The underline style also differs per group, so you can tell them apart even if colors are hard to distinguish.
- Check the legend below for the count and sample words of each rhyme group, and change options to compare results.
How Korean syllables are split and compared
Korean syllables are arranged regularly in Unicode, so they can be split into initial, vowel and final consonant by arithmetic. Subtract 44032 (the code of 가) from the character code and divide by 588 to get the initial; the remainder divided by 28 gives the vowel, and the final remainder is the final consonant. Syllables with the same vowel form a vowel rhyme, and syllables with the same vowel and the same representative final sound share the same rhyme ending.
Final consonants collapse to a single representative sound when pronounced, so they are converted before comparing. For example ㄲ, ㅋ, ㄳ and ㄺ all sound like [ㄱ], and ㅅ, ㅆ, ㅈ, ㅊ, ㅌ and ㅎ sound like [ㄷ]. Some vowels can also be merged, like ㅐ and ㅔ, which sound almost identical in modern speech, so the "merge similar vowels" option lets you switch that on or off.
This method reflects only part of Korean pronunciation rules. It ignores liaison, where a final consonant moves to the next syllable, palatalization (같이 sounding like 가치) and consonant assimilation (국물 sounding like 궁물), and compares by written form. Expressions that sound the same but are spelled differently can therefore land in different groups, so reading the lines aloud to check is essential. In return, because it computes per character, the result is consistent and easy to explain.
How English rhymes are found
English spelling does not match pronunciation, so exact rhyme detection needs a pronunciation dictionary. To stay small and fast, this tool compares the last vowel group of a word and the consonants after it by spelling. "light" and "night" match on "ight", and "time" and "rhyme" match on the ending "ime".
Words that sound alike but are spelled differently (night and write), or spelled alike but pronounced differently (though and tough), can be judged wrongly. Treat the English result as a reference and read important lyrics aloud to check. Mixed Korean and English lyrics are analyzed too, but Korean groups and English groups are kept separate.
Rhyme is a technique of repeating the same sounds on purpose to create rhythm and memorability. There are end rhymes at the ends of lines, internal rhymes within a line and multi-syllable rhymes across several syllables. By changing the scope to "Last 2 syllables" or "All syllables" you can compare these differences visually.
Tips for reading the result
- Start with "Last 2 syllables + vowel only", and narrow to "vowel + final consonant" if too much is painted.
- "All syllables" paints almost everything and can be noisy. Use it only to see internal rhymes or the overall sound distribution.
- Single occurrences are not painted by default. When you are writing new rhymes, turn on "Also color single occurrences" to see which spots still have no partner.
- When stuck while writing, look at the sample words in the legend to think of other words with the same rhyme.
- Do not get too bound to matching rhymes. Meaning and flow come first and rhyme is decoration on top, which keeps lyrics natural. What the tool paints is only a reference.
- Use other people's lyrics for analysis only and respect copyright when you publish or reuse them.
FAQ
What is a rhyme?
A rhyme is a repetition of similar sounds in lyrics or poems. In Korean rap it is common to match the vowel or final consonant of the ending syllables. This tool shows those repetitions as colors you can see.
What is the difference between "Vowel only" and "Vowel + final consonant"?
"Vowel only" treats syllables with the same middle vowel as rhyming. "Vowel + final consonant" also requires the same final consonant sound. For example 하늘 and 마음 differ by vowel, while 상 and 강 share both the vowel and the final consonant.
What does merging similar vowels do?
In modern pronunciation some vowels sound almost the same, such as ㅐ and ㅔ. With this option on, ㅐ and ㅔ, ㅒ and ㅖ, and ㅙ, ㅞ, ㅚ are compared as the same sound. Turn it off for strict spelling-based comparison.
Is the English rhyme detection accurate?
No. English is compared only by spelling without a pronunciation dictionary, so words that sound alike but are spelled differently, such as night and write, may not be matched, and words spelled alike but pronounced differently may be grouped. Treat it as an approximation.
Is my text saved?
No. The analysis runs only in your browser and nothing is sent or stored. If you use someone else's lyrics, please respect copyright.
Notes & limitations
This tool compares the sound structure of characters and marks what looks like rhyme as a reference; it does not replace exact prosody analysis or professional songwriting feedback. English rhymes are a spelling-based approximation. Your text is never sent to a server or stored. BTSPACE WAGLE is an unofficial information site.