neuralanalog

Online MIDI Player

Play .mid and .midi files directly in your browser. Listen with SoundFont audio and view every instrument in a color-coded piano roll. No upload, account, or software installation required.

Play MIDI files online for free

Drag and drop a .mid or .midi file into the player above, then press play. You can pause, seek through the track, and preview MIDI files without opening a DAW or downloading a desktop MIDI player.

What is a MIDI file?

A MIDI file stores musical instructions such as notes, timing, tempo, velocity, and instrument changes. It does not contain a finished audio recording, so a synthesizer and instrument sounds are needed for playback.

MIDI viewer with a color-coded piano roll

The online MIDI viewer displays pitch vertically and time horizontally. Each instrument has a different color, making it easy to inspect melodies, chords, note lengths, and arrangement changes while the playhead stays synchronized with playback.

Browser MIDI playback with a SoundFont

This MIDI player uses SpessaSynth, Web Audio, and the lightweight TimGM6mb SoundFont to generate sound in your browser. The instrument library starts loading as soon as you import a MIDI file. Other MIDI players and DAWs may use different instrument libraries, so the same MIDI file can sound slightly different elsewhere.

Private MIDI player with no file upload

Your MIDI file is parsed, displayed, and played locally in the browser. It is not uploaded to Neural Analog, stored on a server, or added to an account.

Frequently Asked Questions

What is a SoundFont, and which SoundFonts does Neural Analog use?
A SoundFont is an instrument library that turns the notes, timing, velocity, and instrument instructions in a MIDI file into audible sound. The same MIDI file can sound different with another SoundFont because the underlying instrument samples and playback settings change.

The account-free online MIDI player uses TimGM6mb, the smallest available bank, so its instrument library can start loading as soon as you import a file.

With a Neural Analog account, the MIDI-to-audio workflow lets you preview and render with:

  • MuseScore General (38 MB)
  • GeneralUser GS (31 MB)
  • TimGM6mb (6 MB)

Create an account to continue to the MIDI-to-audio page after sign-in, compare the available SoundFonts, and choose the instrument sound before rendering.