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OGG to MIDI Converter

Convert OGG Vorbis or OGG Opus audio to MIDI free, entirely in your browser. Three conversion modes — full mix, 2-track, or 4-track stem separation. Nothing uploaded.

🔒 No upload ⚡ Instant ✓ Free 🎹 3 modes

Drop your OGG file here

or click to browse — converts to MIDI right in your browser

No upload · Runs in browser · 100% private

What is OGG?

OGG is an open-source audio container format, most commonly used with the Vorbis codec (OGG Vorbis) or the Opus codec (OGG Opus). It's widely used in games, Linux systems, and applications like Discord and Spotify due to its open license and efficient compression. The Web Audio API built into modern browsers can decode OGG natively, so conversion to MIDI works immediately with no plugins needed.

Three MIDI conversion modes

Full Mix (Mode A) — detects pitch across the whole audio and outputs a single MIDI track. Ideal for monophonic recordings or simple arrangements.
2 Tracks (Mode B) — uses harmonic-percussive source separation (HPSS) to split pitched notes from drum hits. Outputs a melody track and a drum track.
4 Tracks (Mode C) — separates drums, bass, melody, and other instruments into four MIDI tracks using spectral median filtering.

Tips for better results

Use the clearest recording you have — less reverb and less background noise means more accurate pitch detection.
Trim long files — Mode C (4-track) processes the entire audio, so working with a shorter clip is faster and often cleaner.
Try Mode A first — if you just need the melody or a basic transcription, full mix is the quickest option.
Convert OGG to WAV first for best quality — if your OGG was encoded at a low bitrate, converting it to WAV on Filesmith first can sometimes improve detection results.

Using the output in a DAW

The resulting .mid file is a standard MIDI file that opens in any DAW — FL Studio, Ableton Live, Logic Pro, GarageBand, Reaper, and more. For Mode B and C outputs, each stem is saved on a separate MIDI channel so you can route them to different instruments in your project.

Frequently asked

Does the result depend on the OGG quality?

Slightly. OGG (Vorbis) is a lossy format like MP3, so some audio detail is lost in the source file itself. The transcription will work but may be marginally less accurate than from a lossless WAV or FLAC source.

Will the MIDI sound like the OGG?

No. MIDI doesn't contain audio — it contains note instructions that a synthesizer or DAW plays back. The pitches and timing come from the OGG, but the actual sound depends on what plays the MIDI back.

Can I edit the MIDI afterward?

Yes. The output is a standard .mid file you can open in any DAW or music notation program — change notes, swap instruments, transpose keys, and so on.