Clean Lyrics for Suno AI Free — Format & Remove Chords

Last updated: August 2026

Overview

Suno treats chord symbols, messy section headers, and repeat markers as part of the lyric text. Cleaning them before generation improves structure and reduces wasted tokens. LyricPrep does this entirely in your browser.

Ready to clean? Open the free formatter →

1. Paste or drop your lyrics

Copy lyrics from a chord sheet, Google Doc, or AI chat. Drop a .txt, .lrc, or .md file onto the input panel, or paste with Ctrl/Cmd+V.

2. Choose cleaning options

Remove standalone chord lines — lines that are only chords (Am F C G)
Remove inline chords — [Am], Cmaj7 sitting inside lyric lines
Standardize → [Verse] — turns (VERSE 1), Chorus x2, etc. into [Verse] / [Chorus]
Remove repeats (x2) — strips (x2), [repeat], etc.
Normalize spacing — collapses extra blank lines
Keep hints — preserves performance notes like “- soft female vocal”

3. Pick mode & character limit

Use Suno / Udio Optimized for most songs. Set the character limit to 3,000 (Suno Lyrics) or lower if you want auto-trim. Udio users should prefer 350 or the dedicated Udio guide.

4. Clean & copy

Click Clean Lyrics (or ⌘/Ctrl+Enter). Review the output, then Copy or Download .txt. The status bar shows how many chord lines, inline chords, tags, and repeats were cleaned.

Example

(VERSE 1 - soft female vocal)
Am    F    C    G
I remember the nights [Am]
When you held me close   F

(CHORUS x2)
I can't forget you...

becomes:

[Verse - soft female vocal]
I remember the nights
When you held me close

[Chorus]
I can't forget you...

Writing lyrics Suno sings well

Cleaning fixes formatting, but the words themselves matter too. Suno sings most naturally when lines are short and conversational — roughly 5–10 syllables per line. Very long lines get rushed or crammed; very choppy fragments can sound robotic. Read each line aloud: if you run out of breath, the model will too.

A few writing habits that pay off:

One idea per line. Dense multi-clause lines blur together in generation. Break them up.
Keep the rhyme scheme consistent within a section. Verses can be loose, but the chorus should lock into a clear pattern — that's what makes it feel like a chorus.
Repeat the hook exactly. If the chorus repeats, paste it identically each time rather than writing "chorus x2". Identical repetition teaches the model the hook.
Cut filler words. Lines padded with "yeah", "oh", "well" to fill meter often get overemphasized. Trim them and let the melody breathe.

Lyrics box vs style prompt: what goes where

A common mistake is putting everything in the lyrics box. Suno has separate fields for a reason:

Lyrics box: only the words to be sung, plus [Verse] / [Chorus] section tags and short performance hints.
Style field: genre, mood, tempo, instrumentation — "melancholic indie folk, 90 bpm, fingerpicked guitar".
Title field: the song title. Never in the lyrics box.

Genre words inside the lyrics box sometimes get sung ("melancholic indie folk" as an opening line is a classic fail). Keep each field to its job and generations get noticeably more coherent.

Related guides

What Suno does with messy lyrics

Suno treats everything in the lyrics box as singable content or structural hints. Consequences of messy input:

Chord lines ("Am F C G") get sung as syllables or mumbled noise.
Inconsistent headers ("VERSE 1", "Verse:", "(chorus)") may be sung aloud instead of treated as structure.
Repeat markers ("x2", "(repeat)") can be vocalized literally.
Over-long lyrics get truncated mid-song, cutting your ending off.

Cleaning first is the difference between a usable generation and a wasted credit.

Metatags that work in Suno

Use square-bracket tags on their own lines. The reliable set:

[Verse], [Chorus], [Bridge], [Intro], [Outro], [Pre-Chorus]
Performance hints inside the tag: [Verse - soft female vocal], [Chorus - big drums]
Keep hints short — one or two descriptors. Paragraphs of direction confuse the model.

Common mistakes

Pasting from chord sites as-is: always run the chord removers first.
ALL-CAPS headers: standardize to [Verse] style — caps headers are more likely to be sung.
Leaving "x2": write the section out twice instead, or drop the repeat — Suno handles explicit repetition better.
Ignoring the character count: watch the counter; trim before you generate, not after a bad result.

Frequently asked questions

How long should Suno lyrics be?

Most songs work well between 1,000 and 3,000 characters. Shorter is safer — the model stays coherent and you waste fewer credits on truncated generations.

Should I include the song title?

No. Titles in the lyrics box often get sung as a first line. Put the title in Suno's title field instead.

Do parentheses work for background vocals?

Sometimes — (ooh) style ad-libs are often sung quietly. Results vary; keep them sparse and test.

Can I use LyricPrep for Suno v4?

Yes. The cleaning principles (no chords, clean tags, sane length) apply to every Suno version.

Should lyrics be uppercase or lowercase?

Normal sentence case. ALL-CAPS headers are more likely to be sung as words, and all-lowercase is fine but harder for you to proofread. Standardize tags to [Verse] style and keep lyric lines in natural case.

How do I mark a duet or male/female parts?

Use short hints inside the section tag, e.g. [Verse - male vocal] followed by [Chorus - duet]. Keep it to a word or two — Suno responds to simple voice labels better than elaborate casting directions.