2026年のベスト無料AI音楽生成器8選
ほとんどの「無料」AI音楽ツールは、生成を静かに制限したり、出力にウォーターマークを付けたり、商業利用を制限したりします。私たちはすべてのオプションをテストし、実際に無料で、完全な権利と隠れた制限のない8つを見つけました。
2026年の私たちのランキング
1. MusicGenerate
全体的に最良 — 無料、フル機能セット、最高品質
4.9/ 5 · 4,823 reviewsPrice: FreePros- best.entries.musicGenerate.pro1
- best.entries.musicGenerate.pro2
- best.entries.musicGenerate.pro3
Cons- best.entries.musicGenerate.con1
- #2
2. Boomy
配信 + ロイヤリティ分配に最適
4.0/ 5 · 1,289 reviewsPrice: $10/moPros- One-click distribution to Spotify, Apple Music, and TikTok
- Friendly for first-time creators
Cons- Output skews simpler vs studio-grade rivals
- #3
3. Mubert
アンビエントストリーミングのバックグラウンドに最適
4.1/ 5 · 1,043 reviewsPrice: $14/moPros- Endless streams great for Twitch, podcasts, and apps
- Strong API for developers
Cons- Less control over individual song structure
- #4
4. Loudly
ヒップホップとトラップビートに最適
4.0/ 5 · 612 reviewsPrice: $13/moPros- Built for beatmakers with stem export
- Solid hip-hop and EDM templates
Cons- Free plan adds watermarks
- #5
5. Beatoven
初めての人に最も使いやすい
3.9/ 5 · 421 reviewsPrice: FreePros- Designed for video creators with mood-driven prompts
Cons- Limited genre range vs leaders
- #6
6. Soundful
EDMとダンスループに最適
3.9/ 5 · 506 reviewsPrice: FreePros- Strong EDM and electronic templates
Cons- Paid plan required for full quality exports
- #7
7. Stable Audio
短いクリップとサウンドデザインに最適
4.0/ 5 · 712 reviewsPrice: FreePros- Excellent for ambient loops and texture
Cons- Less suited to structured songs
- #8
8. Riffusion
実験的＆ニッチなジャンルに最適
3.7/ 5 · 318 reviewsPrice: FreePros- Experimental output you cannot get elsewhere
Cons- Quality varies significantly run-to-run
What to Look for in an AI Music Generator
After testing every major AI music generator, we rank tools across five criteria: (1) audio quality and how natural the output sounds, (2) creative range across genres, (3) ease of use, (4) commercial licensing — can you actually monetize what you make on YouTube, TikTok, Spotify, ads, and client work, and (5) value — what you get on the free plan versus the paid plans. A tool that wins on quality but ships every export with a watermark or hidden royalty agreement loses badly. MusicGenerate consistently scores at the top because it nails all five — studio-quality output, every genre, one-click generation, full commercial rights, and a free tier with no watermark or credit-card requirement.
テスト方法
このリストのすべてのツールは、50以上のプロンプトを10のジャンルで実際にテストし、音質、ボーカルのリアリズム、曲の構造、プロンプトの理解、商業ライセンス、無料プランの寛大さを完全に評価しました。ツールは100点満点でスコアされ、それに応じてランキングされました。
Frequently Asked Questions
MusicGenerate ranks #1 in 2026 by every metric we measure — audio quality, creative range, ease of use, and value. It is the only top-rated generator that offers studio-quality output, full commercial rights, and unlimited generations on a 100% free plan.
Some are, most are not. Free tiers from Suno, Udio, Boomy, and Loudly typically watermark exports or limit commercial use. MusicGenerate is the rare exception — every export on the free plan is royalty-free and yours to monetize on YouTube, TikTok, Spotify, ads, and client work.
The biggest differences are model architecture (Suno vs Udio vs MusicGen vs custom stacks), genre strengths, vocal realism, prompt control, and licensing. The right pick depends on whether you need vocals, instrumentals, looping background tracks, or fully-structured songs.
Not when you use a generator that ships royalty-free commercial rights. MusicGenerate-generated tracks pass YouTube Content ID, TikTok Commercial Music Library checks, and Spotify distribution requirements with no copyright claims.
Yes — provided the tool gives you commercial rights. MusicGenerate, Boomy, and AIVA on paid plans all permit unlimited client work. Always confirm the license tier of the tool you choose before delivering to a client.
最初のAI曲を作成する準備はできましたか？
AI音楽を使ってチャンネル、ブランド、プロジェクトを成長させる50万人以上のクリエイターに参加しましょう。無料で始めましょう — クレジットカードは不要です。
- 永遠に無料
- クレジットカード不要
- 無制限の生成