Tighten a live keyboard take
Quantize loose 16th-note runs, smooth velocities, and add modulation curves before re-exporting to your DAW.
00:15 preview - cleaned synth arpeggio
Live ToolCore ToolLive Demo
AI MIDI Editor - Arrange, Clean, and Export MIDI Online
Launch the AI MIDI editor directly in your browser to arrange, quantize, and export patterns instantly.
Launch our in-browser MIDI editor to refine sequences safely in your browser before exporting.
MIDI Editor
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Try it instantlyNo signup requiredSecure & private
~3 seconds
Average load time
16+
Tracks per project
Unlimited
Undo history
Chrome, Edge, Safari
Browser support
Try the AI MIDI editor in your browser
Preview the experience in seconds
Open the browser workspace to refine existing clips or sketch new ideas without installing software.
Sample input
- Works best in desktop Chrome or Edge
- Exports MIDI Type 0 and Type 1
Why creators choose our AI Song Generator
Value propositions
In browser
Browser piano roll
Edit melodies, chords, drums, and automation in a responsive multi-track view that works on any desktop device.
Pro controls
Precision control tools
Quantize with strength controls, draw velocity curves, stretch notes, and loop clips without leaving the browser.
DAW ready
DAW-ready exports
Export standard MIDI files that slot cleanly into Ableton Live, Logic Pro, FL Studio, Pro Tools, and more.
Sarah just generated a trackLo-fi Hip Hop
2 minutes ago
Listening samples
Hear different genres before you dive in
Humanize drum programming
Start with a rigid grid, apply swing, vary velocities, and layer percussion for a more organic groove.
00:08 preview - humanized drum groove
Revoice a chord progression
Duplicate progressions across tracks, invert voicings, and audition spreads in minutes.
00:12 preview - revoiced chord sequence
Prompt library for AI Song Generator
Explore ready-to-run ideas grouped by mood, genre, and theme
Editing workflows
3 promptsQuantize with feel
Select notes > press Q > choose 1/8 swing at 55% strength to tighten while keeping groove.Velocity layers
Switch to velocity view > draw crescendo > copy to other lanes for cohesive dynamics.Loop management
Set loop points in the timeline > enable loop playback > edit endings while monitoring transitions.Keyboard shortcuts
3 promptsSelect intelligently
Ctrl+Shift+Click isolates a lane; Alt+Drag copies notes without affecting timing.Fast navigation
Hold Space for hand tool, use Page Up/Down to jump octaves, and use +/- to zoom.Automation editing
Press A to toggle automation lanes, then Shift+Drag to draw precise CC ramps.Creative ideas
3 promptsCall and response
Duplicate a melody to a new track, offset by two bars, and invert for instant counterpoint.Chord texture
Copy chord tones to higher octaves, reduce velocities, and add slow automation for pads.Percussive swing
Shift every second hi-hat 10 ms late, reduce velocity slightly, and layer ghost notes.Featured single-line prompts
Clean up timing
Select the clip, press Q, and apply 1/16 quantize at 60% strength for natural tightness.Shape dynamics
Show velocity view, drag a crescendo across the bar, then copy with Ctrl+D to repeat.Duplicate arrangement blocks
Use Ctrl+A to select the section, hold Shift, and drag to clone it while keeping automation.Workflow overview
Follow these steps to move from idea to final mix
- 1Open the editor and create a new clip or import an existing MIDI file.
- 2Set tempo, time signature, and organize tracks for each instrument.
- 3Drag, stretch, and duplicate notes directly in the piano roll to refine parts.
- 4Quantize timing or apply swing using the timing panel for tighter grooves.
- 5Draw velocity ramps and automation lanes to add dynamics and expression.
- 6Export the finished clip as MIDI Type 0 or 1 and continue arranging in your DAW.
Compare popular browser MIDI editors
See how our MIDI editor stacks up against other web-based piano rolls.
| Platform | Highlights | Free plan | Outputs |
|---|---|---|---|
| AI MIDI Editor (this page) | Multi-track piano roll, automation lanes, browser based | Yes | MIDI Type 0/1, CC automation |
| Flat.io Studio | Notation-first workflow with MIDI editing and collaboration | Limited | MIDI, MusicXML |
| Soundation Sequencer | Pattern clips, real-time collaboration, integrated instruments | Yes | MIDI, Audio stems |
| BandLab Mix Editor | Cloud projects, loop library, basic piano roll editing | Yes | MIDI, Audio mixdowns |
What you can create with AI Song Generator
Inspiration for different creator workflows
Music producers
Polish imported stems, tighten timing, and prep arrangements before final mixdowns.
Beat makers
Layer drums and melodic lines, tweak swing, and bounce polished MIDI for your DAW.
Composers
Experiment with voicings, orchestration, and automation inside a browser session.
Educators
Demonstrate MIDI editing techniques without asking students to install software.
What creators say
Independent feedback from early adopters
The browser editor lets me clean up live synth takes in minutes and keep everything synced across tracks.
The editor's multi-track view makes it easy to reharmonize cues and export stems for orchestration.
Velocity drawing and swing controls help me humanize programmed drums before sending them to clients.
Frequently asked questions
Answers for licensing, quality, and workflow
Can I import my own MIDI files?+
Yes. Drag and drop a .mid file or use File > Open to load multi-track projects into the editor.
Where are my changes stored?+
The editor runs entirely in the browser and keeps edits in memory. Export regularly to keep a local copy of your work.
Does it support keyboard shortcuts?+
Use familiar commands like Ctrl+Z for undo, Ctrl+D to duplicate, and Shift+Drag to copy note blocks.
Can I record from a MIDI controller?+
Enable record mode (R) and perform on your MIDI controller to capture notes directly into the grid.
About AI-assisted MIDI editing
Deep-dive context for AI-generated music
An AI MIDI editor blends traditional piano roll workflows with smart defaults that speed up arrangement tasks.
Our browser workspace runs entirely client-side while delivering the precision producers expect from desktop tools.
Pair the editor with AI generators to spark ideas, then finesse timing, velocity, and automation for professional results.
Start your AI songwriting journey
Unlock full-length renders, commercial licenses, and curated prompt packs when you generate your first track.