Recommended Free Tools
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Improve an AI-generated song by fixing one audible problem at a time: revise a weak section, separate stems if the balance is muddy, then master the finished stereo mix. On a phone, start with Suno’s editing tools; use a stem splitter only when you need more control over a particular part.
Choose The Smallest Fix That Solves The Problem
| Tool | Useful For | Free Plan Details Stated Here |
|---|---|---|
| Suno | Editing, remixing, extensions, section replacement, and stem export | 50 credits per day; audio uploads up to 8 minutes. Stem separation and commercial rights are not included in the Free Plan. |
| Fadr | Separating parts, detecting MIDI, and remixing | Basic stem separation, MP3 downloads, MIDI detection, and Remix Maker. WAV downloads, the DAW plugin, and API access require Plus. |
| Moises | Separating song parts on web, desktop, iOS, or Android | Up to 5 uploads per month, files up to 5 minutes, and limited stem-separation options. |
| eMastered | Mastering a stereo mix with adjustable EQ, compression, and stereo width | Free-plan limits are not stated. |
Fix The Song Before You Polish It
- Pick one specific problem. Listen once without editing and write down the first issue that distracts you: for example, “the chorus feels shorter than the verse,” “the lead vocal is hard to hear,” or “the ending cuts off abruptly.” Avoid asking an AI tool to fix several unrelated things at once.
- Try a targeted edit in Suno. If the problem is in one section, use section replacement; if the song needs more material, try an extension. For a fresh generation, describe the change in plain language, such as “make the chorus fuller than the verse, keep the lead vocal clear, and end with a resolved final chord.” This is a prompt example, not a guarantee of a particular result or genre.
- Compare the new version with the original. Listen to the edited section and the transition into and out of it. Keep the change only if it addresses the problem without creating a new one. If the arrangement or performance is still wrong, revise the song before moving on to mixing.
- Separate parts only when the balance needs work. Upload your song to Fadr or Moises when you need to work with parts such as vocals, bass, or drums. Listen to each separated part before relying on it: separation can leave unwanted remnants or affect the sound. Moises’ free uploads are limited to 5 minutes, so check the track length first. Fadr Basic provides basic stem separation; its entry does not specify a free upload limit.
- Make a restrained balance change. If you can adjust separated parts in your chosen workflow, lower a part that masks the lead or raise one that has disappeared. Change one part at a time, then listen to the combined song on your phone speaker and headphones if available. The listed tool details do not establish that either splitter includes a particular phone-based multitrack mixing workflow; check the vendor’s site for device-specific controls.
- Master after the arrangement and balance feel right. Send a finished stereo mix to eMastered and adjust its EQ, compression, or stereo width only to address an audible issue. Compare the processed version with your original at similar playback loudness; louder can seem better even when it is not clearer. eMastered is described as starting from a stereo file, so it is not a substitute for fixing an individual part.
- Export and check the result. Save a final copy and listen through the beginning, section changes, and ending. Check the vendor’s site for current export options, file requirements, and phone-specific steps before starting a project.
Use Prompts That Describe A Musical Change
A useful prompt tells the generator what to change and what to preserve. Keep it concrete: name the section, describe the desired contrast, and state which core element should remain stable. For example: “Make the second chorus more energetic with a stronger drum pattern; keep the vocal melody and tempo consistent.” The available product details do not establish support for a particular genre, language, instrument, or prompt syntax, so check the relevant vendor’s site if one is essential to your song.
Check Rights Before Sharing Or Reusing Audio
Before uploading, distributing, or commercially using a song, check the terms for the account and plan that created it and the terms of any service receiving it. Suno’s Free Plan does not include commercial rights. Get consent for any real person’s voice you use or imitate, and make sure you have permission for covers or samples; the tool details here do not establish permissions for those uses.
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