v1.2.1 · Open Source · Windows

The AI-Powered MIDI Editor

Compose • Edit • Transform • Play — with an intelligent copilot that understands music.

⬇ Download v1.2.1 📖 Documentation 💻 GitHub Repo
🧠 MidiPilot
Ask MidiPilot...
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gpt-5.4 💭 med

✨ Features

Everything you need for MIDI editing — plus an AI that actually helps.

🤖

MidiPilot AI Copilot

15 AI tools, Agent & Simple mode, natural language MIDI editing. Compose melodies, add harmonies, fix arrangements — just ask.

🎸

Guitar Pro Import

Open GP1 through GP8 files directly. 30+ years of Guitar Pro formats, from 1993 DOS-era tabs to 2024 GP8, all auto-detected by header.

🎮

FFXIV Bard Mode

One-click FFXIV channel fixer for MidiBard2 — deterministic algorithm, no AI needed. Guitar variant switching, range clamping, validation.

🔊

FluidSynth & Audio Export

Built-in FluidSynth synthesizer with SoundFont management. Export to WAV, FLAC, OGG, or MP3 with the bundled LAME encoder.

🎨

7 Themes & MIDI Visualizer

Dark, Light, Sakura, AMOLED, Material Dark, System, Classic. 10 color presets for note bars. Real-time MIDI visualizer for playback.

🎹

Professional Piano Roll

Full-featured piano-roll editor with velocity/CC editing, quantization, copy/paste, recording, multi-track support, and smooth playback scrolling.

📷 Showcase

See MidiEditor AI in action.

MidiEditor AI — Full Piano Roll View
Piano Roll — Full editor with tracks, channels, and event view
MidiPilot Agent Run
MidiPilot Agent Mode — Multi-step AI composition in action
FFXIV Channel Fixer
FFXIV Channel Fixer — One-click MidiBard2-ready output
MIDI Visualizer
MIDI Visualizer — Real-time note visualization during playback
MidiPilot Panel
MidiPilot Panel — AI context, chat history, and tool integration
0 AI Tools
0 File Formats
0 Themes
0 Bugfixes in v1.2
0 Years of GP Formats

🆕 What’s New

Latest

v1.2.1 — April 2026

  • 72 bug fixes across the entire codebase — memory leaks, crashes, parser hardening
  • Guitar Pro 5 parser — 4 byte-alignment bugs fixed; GP5 files that failed now load correctly
  • MidiPilot timestamps — cleaner chat timestamp display across all themes
View Full Changelog →

⚖️ MidiEditor AI vs. Original

FeatureOriginal MidiEditorAI Edition
AI Copilot (MidiPilot)✖✔
Guitar Pro Import (GP1–GP8)✖✔
FFXIV Bard Mode✖✔
FluidSynth Playback✖✔
Audio Export (WAV/FLAC/MP3)✖✔
Themes17
Note Color Presets✖10
MIDI Visualizer✖✔
SoundFont Management✖✔
Chord Detection✖✔

⬇ Download

Free & open source. Windows 10/11.

⬇ Download MidiEditor AI v1.2.1

Available as Windows Installer (.exe) and Portable (.zip) · All releases