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Overview How It Works Before & After Reviews Why This Tool FAQ Pricing Top 10 Get Alerts News

Turn any text prompt into a full song, completely free, with full commercial rights. Now rebranded as Treblo.

Generate unlimited tracks using your own lyrics or AI in thousands of styles, and download in multiple high-quality formats.

Best forUnlimited, free song ideation with commercial rights
DifferentiatorOffers unlimited songs on its latest model with full commercial rights for free.
ProofPublic comparison chart on website showing its free tier is superior to competitors.
Try Sonauto
Free Plan
9.2 Zekai
Unbeatable Free Music Generation
AI for Music, Audio & Voice Production
Ease of Use
9.2
Accuracy
8.5
Value
9.8
Time Saving
9.4
Free ForeverCommercial UseMulti-LanguageStem SeparationMobile App
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⚡ Quick answer

For music and audio professionals seeking a powerful, no-cost AI tool, Sonauto (now rebranded as Treblo) is a top choice. It stands out by offering unlimited song generation on its latest model completely free, including full commercial usage rights—a feature typically behind a paywall on competitors like Suno. This makes it ideal for rapid prototyping, creating royalty-free background music, and testing lyrical ideas without any financial commitment.

CategoryAI Music Generation
Best ForUnlimited, free song ideation with commercial rights
Price FromFree
FreeYes, unlimited free tier
DifferentiatorOffers unlimited songs on its latest model with full commercial rights for free.
ProofPublic comparison chart on website showing its free tier is superior to competitors.
Rating4.6/5
📖 About Sonauto
How It Works

Your workflow, automated

1
Describe Your Song
Start with a simple text prompt describing the mood, genre, or theme of the song you want to create.
2
Add Styles & Lyrics
Choose from thousands of style tags. Then, either write your own lyrics (using tags like [Verse] and [Chorus]) or let the AI write them for you.
3
Generate & Refine
Click to generate your song. Listen as it streams, then use the editor to regenerate parts, swap lyrics, or extend the track until it's right.
Ready to automate your workflow with Sonauto?
Try Sonauto →
Real Impact

Before & After

❌ Before

Song ideas remain undeveloped due to the time and cost of producing demos.

Days or weeks to a first demo
✅ After

Any musical idea can be transformed into a full song draft in seconds, at no cost.

Seconds to a first draft
Social Proof

Trusted by professionals

Ease of Use
9.2
Accuracy
8.5
Value
9.8
Time Saving
9.4

"The speed is unreal. I can test out a chorus in ten different styles in ten minutes. It's completely changed my workflow for breaking creative blocks."

Alex D., Songwriter · June 2026

"Unlimited songs with commercial rights for free. I can't stress how huge that is. I use it for quick backing tracks and placeholder vocals. It saves me hours and budget."

Maria F., Producer · May 2026

"It's an amazing starting point, but the editing tools are still basic. You can't fine-tune instrumentation or vocal delivery like in a DAW, so I always have to export it for final polish."

Sam K., Indie Artist · June 2026

"I needed a theme song for my podcast and got a great one in 30 seconds. Being able to get high-quality WAV downloads for free is just incredible value."

Jian L., Content Creator · April 2026
Sonauto+ professionals are already using this tool.
Start Free Today →
Who It's For

Why Music, Audio & Voice Production choose this tool

🎯
Built for
It's best for rapidly generating unlimited, commercially-usable song ideas and demos across any genre without cost.
In-Depth Overview
For any audio professional on a budget or in need of rapid inspiration, Sonauto (rebranded as Treblo) presents an unbeatable value proposition. Its core differentiator is its 'truly free' model. Unlike competitors like Suno or Mureka which cap free usage or restrict features, Sonauto offers unlimited song generations using its latest model, Melodia v3. Crucially, it grants you full commercial usage rights on your creations, even on the free tier. This means you can use the music in client projects, videos, or podcasts without paying for licenses. The proof is on their website: a direct comparison shows Sonauto providing unlimited songs, use of the latest model, and features like stem separation and multiple download formats (WAV, FLAC, MP3) at no cost. This removes the financial barrier to experimenting with AI-generated music, allowing you to create demos, backing tracks, or instrumental scores instantly and without risk.

Key Use Cases

✍️
Instantly Turn Lyrical Ideas into Demos
Songwriter
Paste your lyrics into the tool, select a style like '90s alternative rock' or '2020s pop', and hear your words come to life as a full song in seconds.
From lyric sheet to demo in under a minute
🎧
Generate Royalty-Free Backing Tracks
Music Producer
Create instrumental tracks for client projects or artist collaborations by selecting 'instrumental' mode and specifying a genre and mood.
Zero-cost, commercially-licensed instrumentals
🎬
Create Custom Background Music for Videos
Content Creator
Generate unique, fitting background music or theme songs for YouTube videos and podcasts, avoiding copyright strikes and stock music fees.
Custom soundtracks for every new project
✓ Pros
Completely free with no generation limits.
Includes commercial usage rights, a rare feature for a free tool.
Extremely fast generation, with songs starting in ~15 seconds.
Supports a vast library of genres and dozens of languages.
Provides high-quality download formats like WAV and FLAC.
· Cons
Editing tools are basic and not a substitute for a professional DAW.
Generated music quality can be inconsistent and may need external polishing.
The recent name change from Sonauto to Treblo could cause user confusion.
Community features like groups are present but still developing.
⚡ Editorial Verdict

Sonauto (Treblo) is an exceptionally generous and powerful tool for zero-cost music creation. The ability to generate unlimited songs with full commercial rights is a game-changer for producers and creators. Its main trade-off is that while the in-app editing is useful for iteration, it's not a full DAW; final mastering and complex arrangements will require exporting tracks to professional software.

Questions & Answers

Frequently asked questions

Can I use songs made with Sonauto (Treblo) for commercial projects? +
Yes. The platform grants you all rights to the songs you create, even on the free tier. You can post them, use them in videos, or for other commercial purposes, provided your input (like lyrics) is also your own.
Is Sonauto (Treblo) really free? +
Yes, it is 'truly free'. You can create unlimited songs using their latest model without any daily limits or trial periods.
What languages can Sonauto (Treblo) sing in? +
It can sing in dozens of languages, including English, Spanish, Japanese, Korean, Hindi, Portuguese, French, German, and Mandarin. You can write lyrics in your desired language or mix them within one song.
Can I create instrumental-only music? +
Yes. By switching the lyrics option to 'instrumental', the tool will generate a music track without any vocals, which is ideal for backing tracks, scores, or podcast intros.
How does Sonauto (Treblo) compare to Suno's free tier? +
Sonauto (Treblo) offers unlimited songs on its latest model with commercial use rights for free. According to their comparison, Suno's free tier has a monthly song limit and reserves its latest model and commercial use for paid tiers.
Is Sonauto (Treblo) available worldwide? +
The website and its services are publicly accessible online without any specified geographical restrictions, implying global availability for anyone with an internet connection.

Last reviewed: Reviewed June 2026 — Assessed the free tier features, commercial use policy, and comparison with competitors.

Plans & Pricing

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Prices and features are updated regularly but can change at any time — always confirm on the official website. Some links on this page are affiliate links.

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About Sonauto

Full Description

Sonauto (now known as Treblo) is an AI music generator that allows music producers and songwriters to create unlimited full songs from simple text prompts. It provides a completely free platform for rapid ideation, offering full commercial usage rights, custom lyric support in dozens of languages, and a vast library of over 4,000 musical styles.

Editorial Verdict

Sonauto (Treblo) is an exceptionally generous and powerful tool for zero-cost music creation. The ability to generate unlimited songs with full commercial rights is a game-changer for producers and creators. Its main trade-off is that while the in-app editing is useful for iteration, it's not a full DAW; final mastering and complex arrangements will require exporting tracks to professional software.

Last reviewed: Reviewed June 2026 — Assessed the free tier features, commercial use policy, and comparison with competitors.
Disclaimer
Zekai is an independent AI tools directory. We are not affiliated with, endorsed by, or officially connected to Sonauto unless clearly stated. All product names, logos, and brands are the property of their respective owners and are used for identification purposes only. The information on this page — including pricing, features, and availability — is general information, may have changed since our last review, and is not professional advice. Zekai Scores and verdicts are our editorial opinion. Some outbound links are affiliate links that may earn us a commission at no extra cost to you. Spotted outdated or incorrect information? Request a correction →
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