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For changing lyrics while keeping a song’s structure or musical direction in view, start with SongIntent for selected-line revisions, Lacuna for syllable and rhyme work, or Suno when you want to rewrite lyrics as part of a song remix. The right choice depends on whether you need a careful text edit, a rap-specific draft, or a changed audio track; the comparison below sticks to lyric workflows each product describes.
Compare AI Tools For Rewriting Lyrics
| Rank And Tool | Supported Lyric Workflow | Platform Or Access Detail | Price Detail Provided |
|---|---|---|---|
| 1. SongIntent | Select a phrase, line, or passage; request help; replace the selection, continue after it, or keep it in Line Vault. | Web-only; open beta. | Free plan; paid from $8/month. |
| 2. Lacuna | Rewrite or replace a line or section, with suggestions returned as a diff to review. | Workspace supports nine languages; rhyme engine phonetics for English, Spanish, Chinese, Japanese, and Korean. | Free access with monthly credits; paid from $19 monthly or $9.50/month with annual billing. |
| 3. Suno | Remix a song by changing its style, rewriting lyrics, or rebuilding it around your own recording. | Web, iOS, and Android. | Free plan; paid from $8/month. |
| 4. AIMusicGen | Add your own lyrics or have AI help write them; replace a section in a track. | Not stated. | Not stated. |
| 5. Prompt Maschine | Generate lyrics to a structure; compare Variant A and B, edit, and use rhyme tools. | iPhone, iPad, Mac, and Android; seven supported writing languages. | Free tier with three generations per day; PRO from $9.99/month. |
| 6. AI Rap Creator | Review generated rap lyrics in an editor, change words, rewrite lines, and add bars before song generation. | Not stated. | 10 free credits; lyric generation costs 2 credits. |
| 7. Belter | Edit any line and regenerate the song. | Not stated. | Not stated. |
Ranked Picks For Specific Lyric Changes
1. SongIntent — Best For Revising A Specific Line Or Passage
SongIntent is the most direct fit when you already have lyrics and want help with one selected piece rather than a wholesale rewrite. Select a phrase, line, or passage, describe the help you want, then choose whether to replace that selection, continue after it, or keep it in Line Vault. Its listed controls also include cadence capture, melody sketches, structure, and line-level revisions, useful when a replacement needs to sit within a song’s phrasing.
The free plan includes one render, five AI assists, and one active project per month; the site describes the product as open beta with no card required. It is web-only, so check the vendor’s site for current plan details and whether its workflow suits your devices.
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2. Lacuna — Best For Rhyme, Syllables, And Reviewed Edits
Lacuna is a strong choice when the replacement line needs attention to syllable count, phonetic rhyme, or meaning-based rhyme. It can rewrite lyrics and restore versions across nine languages. You can select a line or passage and receive suggestions as a diff to review before accepting, or ask it to replace a section, insert one, or swap a single line.
#1 Best Overall
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Lacuna is free to start with monthly credits for lyric writing and editing. Its listed paid pricing starts at $19 monthly or $9.50 per month with annual billing. The rhyme engine’s stated phonetic coverage is English, Spanish, Chinese, Japanese, and Korean; check the site for current credit limits and language details.
3. Suno — Best For Rewriting Lyrics As Part Of A Remix
Suno’s Remix workflow lets you take a song in a new direction by changing its style, rewriting the lyrics, or rebuilding it around your own recording. That makes it a fit when you want a lyric change connected to an audio result, rather than a text-only revision. Suno also lists editing, remixing, extensions, section replacement, and stem export.
Rank #2
- Includes tips, prompts, and words of wisdom from songwriting masters to inspire your muse.
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- Room to write 72 songs.
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Suno has a free plan and paid plans from $8 per month. The free plan does not include commercial rights or stem separation, and the Pro plan limits downloads to 20 songs per month. Suno says songs created as a paid subscriber are yours to keep and use as you wish; check its current terms for your account and intended use.
4. AIMusicGen — Best For Starting With Your Own Lyrics Or Recording
AIMusicGen lets you add your own lyrics, collaborate with AI on lyrics, or start from an uploaded song, vocal, or instrumental. For an existing track, its listed editing options include replacing a section, extending, and remixing. This gives it a plausible fit when a lyric change is part of a broader track edit, though the provided details do not establish how much control you get over an individual line or whether a rewrite preserves a particular melody.
Rank #3
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Check AIMusicGen’s site for plan pricing, supported devices, languages, and the exact controls available for your source track. Its site also lists AI covers, vocal and instrument additions, vocal removal, and stem splitting; those audio features do not by themselves establish permission to use someone else’s voice or recording.
5. Prompt Maschine — Best For Structured Drafts And A/B Variants
Prompt Maschine generates lyrics that follow a chosen structure and offers Variant A and B for copying, editing, rhyming, and saving. Its rhyme engine, rap-flow modes, and audio analysis make it useful for comparing possible replacements against a defined song form. It is a lyric and prompt tool, so the listed details do not establish that it edits or regenerates a finished song’s audio.
Rank #4
The free tier allows three generations per day; the PRO plan starts at $9.99 per month. The stated writing languages are English, Spanish, French, German, Italian, Portuguese, and Romanian. Check the vendor’s site for current plan terms and how its audio analysis works with your material.
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AI Rap Creator is specifically aimed at rap lyrics: its lyric engine describes structured rap with verse patterns, rhyme schemes, syllable counts, and flow. You can review the draft in an editor, change words, rewrite lines, and add bars before moving to song generation. The site lists eight styles, including Trap, Drill, and Boom Bap.
Best Value
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The stated starter allocation is 10 free credits, with lyric generation costing 2 credits. Check the site for current credit terms and supported devices. The described workflow establishes lyric editing before song generation; it does not establish that you can import an existing recording and preserve its delivery.
7. Belter — Best For Editing A Line And Regenerating The Song
Belter lets you edit any line and regenerate the song. Its songwriter can draft lyrics from a one-line idea matched to a chosen mood and song length, which can help if your change needs a fresh verse or chorus concept. The available information does not establish a detailed rhyme editor, a way to preserve an existing vocal take, or a specific device platform.
Belter says you can request a song in any language in the description or write lyrics in that language for it to sing back. Check the site for current pricing, device support, and the exact regeneration controls.
How To Prompt A Lyric Rewrite Without Losing The Song’s Shape
Decide what must stay fixed before asking for alternatives: the line’s meaning, point of view, rhyme position, syllable count, or relationship to the surrounding verse. Those are different constraints; asking for all of them without identifying the priority can make it hard to choose between drafts.
- Select the smallest useful passage. Start with a line or short section when the rest of the lyric should remain unchanged. SongIntent and Lacuna explicitly support selected text or line-level work.
- State the musical constraint. For example: “Rewrite this line to keep its meaning, match the surrounding line’s syllable count, and land on a rhyme for ‘night.’ Give me three alternatives.” Treat this as a prompt example, not a guaranteed product control.
- Review the fit aloud or against the track. Check whether the stresses and vowel sounds feel natural at the intended pace. Lacuna describes syllable and phonetic-rhyme tools; SongIntent describes cadence capture. Other products’ supplied details do not establish equivalent controls.
- Accept only the change you want. Keep the original nearby, compare the replacement in context, and regenerate audio only if that is part of your goal. SongIntent and Lacuna describe reviewable or selective text changes; Belter describes regenerating the song after a line edit.
Rights And Voice Consent To Check
Before uploading a recording, using a voice, creating a cover, or publishing a result commercially, make sure you have consent for the material and voice involved, and read the platform’s current terms. Suno states that its free plan does not include commercial rights and that songs created as a paid subscriber are yours to keep and use as you wish. The supplied details for the other tools do not establish their cover, sample, voice, or commercial-use terms, so check each vendor’s site.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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