Free tool
Suno Prompt Checker
Paste your Style Box, and optionally your Exclude Styles and lyrics. Get a checklist of what is likely to hurt the result, with a one-tap fix for most of it. Everything is checked in your browser and nothing is sent anywhere.
0 / 1,000
0 / 1,000
0 / 5,000
Your report appears here
Paste a Style Box on the left, or try the example, to see it work.
This checks rules and patterns that commonly hurt results. It cannot predict how Suno will actually sound. Build a Style Box from scratch or write the lyrics.