🎹 Free MIDI Tool
The Free Online MIDI Editor & Player
Edit, play and export MIDI files right in your browser. Zero install, no sign-up, works on every modern DAW — Reaper, Ableton, Logic Pro, FL Studio and more.
FEATURES
A complete MIDI editor that runs in your browser
Everything you need to open, edit, play and export MIDI files — without installing a single piece of software. Built for songwriters, producers and music students who want a fast, reliable online MIDI editor.
Edit MIDI online — zero installation
Skip the bulky DAW download. Open any .mid or .midi file directly in your browser and start editing notes, velocity, tempo and tracks in seconds. Works on Windows, Mac, Linux, iPad and Android — anywhere with a modern browser.
Built-in MIDI player & soundfont playback
Preview every note with a real-time piano roll and high-quality soundfont playback. A modern alternative to the classic online MIDI player and viewer — instantly hear what you are editing without exporting first.
Free forever — no sign-up needed
No account, no email, no credit card. Open the editor and your MIDI files stay in your browser — never uploaded, never tracked. Perfect for quick edits when you do not want yet another login.
Compatible with every DAW
Export clean, standard .mid files that drop straight into Reaper, Ableton Live, Cubase, Logic Pro, FL Studio and GarageBand. Use this MIDI editor as a lightweight companion to your main DAW — sketch ideas online, finish them in your studio.
Multi-track & multi-channel editing
Open complex MIDI files with multiple instruments, switch between tracks, mute and solo channels, and tweak individual notes with surgical precision. Handles General MIDI Type 0 and Type 1 files out of the box.
Works on iPad, tablet and mobile
Touch-friendly piano roll and pinch-to-zoom timeline mean you can edit MIDI files on iPad, Android tablets and even phones. The only browser MIDI editor that feels equally good on desktop and mobile.
USE CASES
Built for every kind of MIDI workflow
From songwriters drafting hooks to educators preparing lessons, this online MIDI editor fits the way you actually work.
Songwriters drafting melodies
Capture a melody idea in the piano roll, tweak rhythm and pitch, and export the .mid straight into your DAW for production.
Producers polishing arrangements
Open a sketch from your DAW, fine-tune note velocities and timing in the browser, and re-import — no second DAW license needed.
Music students learning piano roll editing
Practice MIDI editing concepts (quantization, velocity, channels) on a free, distraction-free editor that runs on any school laptop or Chromebook.
Composers exporting for orchestral DAWs
Build clean MIDI scores ready to drop into Logic Pro, Cubase or notation software like MuseScore and Sibelius.
Hobbyists tweaking downloaded MIDI files
Found a .mid online? Open it, change the tempo, mute the vocal track, or solo the bassline — all inside this browser MIDI editor.
Educators preparing classroom demos
Demonstrate MIDI editing live on a projector without installing a DAW on every student machine — just open the URL.
FAQ
Frequently Asked Questions
Everything you need to know about editing MIDI files online for free.
Yes. The MIDI editor is 100% free with no usage limits. You do not need a credit card, you do not need to sign up, and there are no hidden export caps or watermarks. We may add optional premium features in the future, but the core editor will stay free.
No. Just open the page and start editing. There is no account creation, no software download, and no browser plugin. The editor runs entirely in modern browsers (Chrome, Edge, Safari, Firefox, Arc) on Windows, Mac, Linux, iPad and Android.
Standard MIDI File Type 0 and Type 1 (.mid and .midi extensions). Multi-track files exported from any DAW or notation software work — Reaper, Ableton Live, Cubase, Logic Pro, FL Studio, GarageBand, MuseScore, Sibelius and others.
Yes. Click the export button to download a clean .mid file that opens in any DAW or notation app. The export preserves track names, channels, velocities, tempo changes and time signatures.
All of them. Because we export Standard MIDI Files, you can open the result in Reaper, Ableton Live, Cubase, Logic Pro, FL Studio, GarageBand, Pro Tools, Studio One, Bitwig, Cakewalk and any notation software that imports MIDI.
Your MIDI files stay in your browser. The editor processes everything client-side using Web Audio and JavaScript. We do not upload your .mid files to any server, we do not analyze their content, and we do not require you to sign in.
For quick edits, sketching melodies, learning piano roll concepts, or working on a Chromebook/iPad, the online editor is faster to launch and just as capable for note-level work. For heavy mixing with VST plugins and audio recording, you will still want a full desktop DAW like Reaper or Ableton — and our exported .mid drops straight into them.
Free, browser-based, no download and no sign-up. Drag in a .mid file or start a fresh project — your editor is one click away.
Open the MIDI editor now
Files stay in your browser
Loads in seconds
Standard MIDI export
100% freeNo sign-up requiredRuns in your browser
Songwriters, producers and educators using Lacuna to edit MIDI in the browser.
What creators say about the MIDI editor
I keep this open in a tab next to Ableton. When I just need to fix a few notes in a downloaded MIDI file, this is way faster than spinning up the full DAW.
Marcus Reeve
Independent Producer
Finally a MIDI editor that actually works on my iPad without paying for a separate app. I write hooks on the train and the export drops right into Logic Pro at home.
Priya Nair
Singer-Songwriter
I teach a high school music tech class on Chromebooks. Installing DAWs is a nightmare — this online MIDI editor lets every student start working in 30 seconds.
Daniel Whitfield
Music Teacher
The piano roll feels surprisingly close to FL Studio. I sketch beat ideas here when I am away from my studio rig and the .mid imports cleanly.
Tomi Adelaja
Beatmaker
I run a YouTube channel about MIDI files and used to recommend three different desktop apps. Now I just point viewers here — free, no install, works on every OS.
Hannah Brewster
Content Creator
I needed to transpose an orchestral MIDI for my church choir without buying Sibelius. Opened the file here, shifted the key, exported and was done in five minutes.
Elliot Sandoval
Choir Director