Never Sound
Off-Beat Again.
The rap songwriting app that shows your rhymes, syllables and flow while you type.
No credit card needed
One account on iPhone, Android, and the web. Your lyrics sync everywhere.
Rhymes a Dictionary Will Never Give You.
Spelling says these do not go together. Your ear says they do. RhymeFlux reads the sound, so it finds them while you type.
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orange porridge
The word everyone says has no rhyme.
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purple circle
Another one they say cannot be done.
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silver deliver
One more "impossible" word.
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Bugatti body
A brand name. Not in any word list.
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Hennessy enemy
Three syllables locked, not just the end.
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jawn gone
Slang a rhyming dictionary will not have.
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stomach summit
Nothing in common on paper.
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pattern Saturn
Different words. Same landing.
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college knowledge
Spelling says no. Your ear says yes.
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shoulder soldier
Obvious out loud. Never in a list.
Every pair above was checked against the same engine that runs in the app. Test your own in the free slant rhyme finder.
Now Type Your Own Bars.
Don't take our word for it. Edit a line below and watch your rhymes light up live, right here, no sign-up.
That editor is the app's rhyme highlighting, trimmed down. Want to go the other way and start from one word? The multisyllabic rhyme finder hands you the multi-syllable matches, no account.
There's a Better Way to Write Bars.
Most apps weren't built for rap. Neither was ChatGPT. Here's what changes when one is.
- You rhyme everything in your head and hope you don't forget the scheme.
- No way to check if your syllables actually fit the beat.
- Writer's block hits and you stare at a blank screen.
- Ask a chatbot instead and it ignores that scheme, because it never saw your bars.
- Every idea means a fresh prompt in a chat window you copy and paste out of.
- Every rhyme lights up instantly as you type.
- Live syllable counter shows how your flow fits a 4/4 beat.
- Tap any word for instant rhymes, vibe-matched swaps, and full phrases.
- The AI reads the bars you already wrote, then locks onto your scheme and your vibe.
- Tap once, no prompt to write, in a studio that saves, syncs, and records your takes.
Your own bars, colored the same way, in about ten seconds.
Start Writing FreeBuilt for the Way Rappers Actually Write.
Every feature you need to lock in a verse. Nothing you don't.
See Every Rhyme Light Up as You Type.
Type a bar. The rhymes glow live. It hears how words actually sound, so it catches what spell-check apps miss.
- Every rhyme lights up the moment it lands
- Slant rhymes too, like "casket / Patek"
- Every rhyme scheme gets its own color
- Works for US, UK, Australian, and Canadian English
Three Tools, One Tap.
Tap any word. A drawer slides up with three columns: rhymes, word swaps, and full phrases. Pick one. It drops in your line.
- Rhymes are instant. No waiting, no Credits
- Word Swaps in your vibe: Trap, Drill, Lyrical, Melodic
- Multis are syllable-matched, so they fit your flow
Pull up in the foreign, gang slidin' on a wave
Stay On Beat, Bar After Bar.
The counter ticks up as you type. It counts syllables the way rappers count them, not the way textbooks do. So your flow lines up before you ever hit record.
- Counts real syllables: 'foreign' = 2, 'fortunately' = 4, 'FBI' = 3
- Reads contractions: 'slidin'', 'tryna', 'gonna' all count right
- Beat Grid shows where each syllable lands in your 4/4 beat
- Color zones warn when a bar's too packed to flow clean
When Eight Rhymes Isn't Enough.
The quick drawer gives you 8 rhymes for fast writing. Need more? Tap the book icon. The full Rhyme Finder opens. Same accuracy, no limit.
- Hundreds of rhymes for common words, grouped by syllable count
- Perfect rhymes and slant rhymes, all in one view
- Word not in the dictionary? AI finds rhymes for it instead
The Next Bar Writes Itself.
Empty lines fade in live rhyme hints. Picked from your last end-word and your vibe. No tap. No Credits. Just read and write.
- Fresh hints appear every few seconds on every blank bar
- Ranked by your last end-word and your vibe
- Free forever. Zero Credits, no monthly limits
Type Bar 2… Stack the bag in cash, watch the bank take Bag stacked up like the vault gon' take
savage…
Write a Bar. Rewrite the Bar. Keep Both.
Stuck on a blank line? The AI drops 3 starter bars in your vibe. Got something but want it tighter? It polishes the line. Your original auto-saves. Swipe between them like takes in a booth.
- Empty line: get 3 starter bars in your vibe (Trap, Drill, Lyrical, Melodic)
- Written line: AI polishes it. Your original saves as a second draft
- 1 Credit = 1 AI generation. Free: 15, Pro: 800 (every 30 days)
- AI-assisted lyrics are yours to release anywhere
That is the studio. Open it and write one bar.
Start Writing FreeMost of the rappers who have recorded over my beats had the same problem. Writing in Notes, losing schemes they could never get back. The rhyme sites they tried only caught the obvious stuff. The multi-syllable patterns they were actually trying to land never showed up on screen.
I watched it happen from the other side of the glass, session after session. So I built RhymeFlux for them. Real-time highlights, syllable counts that match how rappers actually count, and an AI that won't write a bar without reading the lines before it first.
What writers are saying
Actually useful
Been using Apple notes for years but this is way better. It counts syllables and highlights rhymes which actually helps you stay in the pocket before you even record. Good looks
helps me kill my writer's block
Dope app. Word suggestions give you actual slang and slant rhymes instead of just cheesy words like other dictionary apps. helps a lot when I get stuck on a bar. And I like a clean dark design too
Actually gets it
organizes my verses way better and the rhyme highlighter is actually legit. definitely recommend if u record a lot
this app really helpfull to me bru its forsure a must need when u making music bru js to make sure ur lyrics are sharp and onpoint bru ... thanku to luke for helping the music community out 100/10 stars for me bru
Free forever on one song. No card, nothing to install.
Start Writing FreeThree Steps. That's It.
From empty studio to finished verse. Watch the writing arc play out.
All Songs & Albums
4 songs · 1 albumLate nights in the lab, every bar designed for damage
Day-ones in the cab, fake ones tryna manage
Type Bar 3…
Type Bar 4…
Late nights in the lab, every bar designed for damage
Stop Guessing. Start Writing.
The free plan lets you test the pro tools, and the free writing tools need no account at all. Go Pro to unlock everything and write your tightest verse yet.
Free gives you unlimited writing on one song, cloud sync, and 15 AI Credits (one generation each). Rhyme colors and Pro tools light up your first 12 bars, so you can see them before you upgrade.
Write all the bars you want, free forever. No card needed.
- 1 Active Song (3 Sections)
- 15 AI Credits Every 30 Days
- Rhyme Highlighting (First 12 Bars)
- Your Songs On Every Device
- Deleted a bar? Get it back
Lock in your flow tonight.
- Everything in Free, plus:
- Unlimited Projects & Songs
- Full Rhyme Highlighting (No 12-Bar Limit)
- 800 AI Credits Every 30 Days
- Up to 10 Recording Takes Per Line
- Unlimited Beat Player Time
- 7-Day Offline Mode
14-day money-back guarantee.
The plan we recommend.
- Everything in Monthly
- Saves you $81 a year (just $8.25 / month)
14-Day Money-Back Guarantee · Cancel Anytime
Ownership for life. No monthly bills.
- Everything in Monthly
- Pay Once, Own It Forever
14-day money-back guarantee. Export your lyrics anytime, so you're never locked in.
All prices are inclusive of VAT where applicable. Transactions processed by Paddle.
And That's Not
Even Half Of It.
Twelve more tools waiting in the studio. Each one earns its spot when you're locked in.
Full Song View
See your whole song on one page. Read it top to bottom before you hit record.
Song Structure
Grab a verse and drop it where you want. Rearrange your song in one click.
Teleport Lines
Move any line to a new spot in one tap. Verse to hook. Hook to bridge. Done.
Built-In Beat Player
Loop any YouTube beat or drop in your own MP3. No YouTube Premium needed. 15 min free every day, unlimited on Pro.
Audio Studio
Record your vocal takes straight onto each line. Play them back without leaving the page.
Booth Teleprompter
Turn your phone into a recording booth teleprompter. Big text, auto-scroll, screen never dims.
Focus Timer
Set a timer. Lock in. Write hard until the bell rings. No distractions.
God Prompt
Stuck on a blank section? Tap once. God Prompt gives you 3 opening bars in your vibe to choose from.
Generate Next Bar
Hit an empty line? Tap once. The AI finishes your rhyme, switches it up, or matches your syllable count.
Concept Roller
Out of ideas? Roll a random rap topic and keyword set. Free. No Credits used.
Cloud Sync
Open your project on any device and pick up right where you left off. Edits from your phone and your laptop both stick.
7-Day Offline Mode
On Pro you keep writing for a full week with zero Wi-Fi. Everything syncs back the second you're online.
The twelve above live inside the studio. A couple stand on their own: the rap syllable counter counts a pasted verse line by line, right in the browser.
Got Questions?
Is RhymeFlux free to use?
How is this different from other rhyme sites and apps?
What does the AI actually do?
How does the AI compare to ChatGPT or other general LLMs?
Does RhymeFlux write my lyrics for me?
Do I own the lyrics I write in RhymeFlux?
Do you read my lyrics or train AI on them?
Is using RhymeFlux cheating?
Will my bars end up sounding like everyone else's?
Is RhymeFlux for writing songs or for freestyling?
More on exporting, offline writing, billing and languages in the full FAQ.
Ready to Write
Your Best Bars?
Open your free studio right now. No credit card, no setup, no catch.
Start Writing FreeJoin 1,800+ rappers writing in RhymeFlux
No credit card · 15 free AI Credits every 30 days · Cancel anytime