Create royalty-free Melodies, Chord Progressions, and Arpeggios instantly.
The endless inspiration tool for
any genre and any DAW.
MIDY is a free AI MIDI generator that runs entirely in your browser. Generate royalty-free melodies, chord progressions, and arpeggios in seconds with Quick Generate — no account needed, no limits. Or unlock AI Compose, powered by GPT-4, for smarter and more musical results that go beyond algorithmic patterns. Sign up free and get 5 AI credits to try it instantly.
Every generation is instantly visualized in a live piano roll. Melody notes appear in pink, chord notes in purple. A playhead follows along during playback so you can see exactly what's happening musically. It's the fastest way to evaluate an idea before downloading.
MIDY generates universal Standard MIDI Files (.mid). Whether you use Ableton Live, FL Studio, Logic Pro, Cubase, or GarageBand, simply drag and drop the file to start creating.
Unlike audio loops, MIDI gives you 100% control. Change the instrument to any VST, transpose the key, edit the notes, and make the music truly yours.
Yes, absolutely. Every melody and chord progression you generate with MIDY is completely royalty-free. You can use them in your personal and commercial productions (beats, songs, jingles, etc.) without any legal concerns or additional costs.
No. MIDY is completely free with no sign-up, no login, and no usage limits. Just open the page and start generating. Everything runs in your browser — nothing is uploaded to any server.
After clicking "Download MIDI," drag the file directly into your DAW's timeline (Ableton, FL Studio, Logic Pro, etc.). The file contains two tracks: the melody on channel 1 and the chords on channel 2. Assign your favorite virtual instruments to each track.
Here's a quick guide:
The piano roll is a visual display that appears after every generation. It shows your melody notes (pink) and chord notes (purple) on a grid where the horizontal axis is time and the vertical axis is pitch. During playback, a white playhead moves across it so you can see each note as it sounds.
The in-browser preview uses a lightweight synthesizer (Tone.js) so the page loads instantly on any device. Each mood has its own synth character — Dreamy sounds airy with reverb and chorus, Dark sounds heavy with filtered sawtooth waves, etc.
The MIDI file you download contains pure note data. Load it into your DAW and assign any instrument you want — piano, guitar, strings, or any VST.
A MIDI file is not audio — it's data. It's like sheet music for computers, telling your DAW what notes to play, when to play them, and how hard (velocity). This gives you 100% control: change the key, edit notes, adjust tempo, and swap instruments freely.
Quick Generate uses a smart algorithmic engine built on music theory rules — it's instant, free, and unlimited. AI Compose sends your parameters to a real AI model (GPT-4) which composes the melody from scratch, with a deeper understanding of phrasing, dynamics, tension and resolution. The result is more surprising, human-like, and musical. AI Compose costs 1 credit per generation — you get 5 free credits on signup, and can buy more anytime.
Each AI Compose generation costs 1 credit. Credits never expire — they stay in your account until you use them. You get 5 free credits when you create an account, and you can purchase more in packs of 30, 100, or 300. Payments are processed securely via Stripe.