# MIDI Editor Draft, refine, and export MIDI ideas from note events or converted melodies with an editor-ready workflow. > Canonical: https://aimusicis.com/midi-editor ## Arrangement ideas to study before editing MIDI Listen for note placement and dynamics in these audio examples, then use Load example above to open editable MIDI notes. ### Arena Rock Anthem Arena rock at 128 BPM, big open chords, a lead break at 2:10 and a doubled chorus. ### Phonk Haze Pitched down four semitones with heavy tape wobble, the canonical slowed edit. ### Minimal Loop Room 128 BPM minimal techno, one evolving loop, almost no variation across six minutes. ## A MIDI editor and piano roll that opens in a browser tab ### A piano roll that opens in a browser tab Note pitch, length, position and velocity, editable without installing a DAW - which is the difference between fixing a wrong note now and waiting to get back to the studio. ### When you have no MIDI yet Start at the MIDI generator or audio to MIDI - this page edits notes, it does not write them. ## Edit MIDI in the browser in three steps ### Start a draft or bring one in Open a blank piano roll, or start from MIDI produced elsewhere on Aimusicis. ### Edit the notes directly Change pitch, length, position and velocity in the browser without installing a DAW. ### Export the file Take the MIDI out to any sequencer, notation app or hardware instrument that reads it. ## A piano roll with nothing to install ### 4 note properties editable Pitch, length, position, velocity. ### 0 software Nothing to install before you can fix a wrong note. ### 1 MIDI file One MIDI file in, one MIDI file out - any sequencer will take it. ### 128 General MIDI programs Audition notes with the factory instrument library or load your own SoundFont. ## MIDI Editor features Open a MIDI file in the browser piano roll, adjust notes and tempo, and audition the arrangement with a built-in or custom SoundFont. ### Four note properties Pitch, length, position and velocity - the four things a piano roll needs to fix a wrong note. ### One MIDI file in, one out Export standard MIDI with editable notes and instrument settings, ready to continue in your sequencer. ## Who edits MIDI without a DAW ### Producers without a DAW open Fix a wrong note on a phone or a borrowed laptop instead of waiting to get back to the studio. ### Music teachers Show a student what changing one note in a phrase does, immediately. ### Hobbyists learning the piano roll Learn how MIDI editing works before committing to a full DAW. ## Where MIDI Editor results go next ### [AI Beat Generator](https://aimusicis.com/ai-beat-generator) ### [AI Music Generator](https://aimusicis.com/ai-music-generator) ### [BPM Tapper](https://aimusicis.com/bpm-tapper) ### [AI Piano Generator](https://aimusicis.com/ai-piano) ## Tools related to MIDI Editor ### [AI MIDI Generator](https://aimusicis.com/ai-midi-generator) ### [MP4 to MIDI](https://aimusicis.com/mp4-to-midi) ### [Audio to MIDI](https://aimusicis.com/audio-to-midi) ### [MIDI to MP3](https://aimusicis.com/midi-to-mp3) ## MIDI editing questions Answers for creators comparing MIDI Editor, AI music generators, editing tools, and royalty-aware publishing workflows. ### What is MIDI Editor? Draft, refine, and export MIDI ideas from note events or converted melodies with an editor-ready workflow. ### Do I need a DAW as well? No. Edit note pitch, length, position and velocity here, and listen with the built-in instrument library. Custom SoundFonts can be loaded from the editor settings. ### Can I import MIDI made elsewhere? Yes. Open a .mid or .midi file from your device. An MP3 or WAV recording needs transcription to MIDI before its notes can be edited here. ### What does velocity actually change? How hard each note is played. Even velocities are what make a part sound programmed; varying them is the quickest way to make it sound performed. ### What can I change here? Pitch, length, position and velocity - the four things that define a note. Everything about the sound stays with the instrument you play it through. ### Can I fix timing without losing the feel? Move the notes that are clearly wrong and leave the rest. Full quantization fixes everything and removes the small drift that made it sound played. ### Can I use the MIDI Editor for commercial projects? Aimusicis does not currently issue a commercial-use license or certificate. Download access is separate from usage rights; review the current Terms and confirm you hold the rights to every uploaded or referenced source before publishing. ### What should I do after using the MIDI Editor? Download your edited MIDI file as a backup or open it in your DAW. The browser keeps an autosave for this device; download the file before moving your work to another device. ### How many credits does MIDI Editor use? MIDI Editor runs in the browser and draws zero credits. ## Open a piano roll in a browser tab Edit notes without installing anything or opening a DAW. _Last updated August 28, 2026_