MIDIFLOW

Free#27 of 29 in AI Audio-to-MIDI Software

MIDIFLOW: A free, private browser tool for converting melodic and polyphonic audio into MIDI. Ranked #27 of 29 in AI Audio-to-MIDI Software by our editors (6.7/10); pricing: Free plan; best for free browser-based MIDI conversion.

6.7/10★★★☆☆Editor score

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MIDIFLOW6.7 Visit MIDIFLOW

At a glance

• Editor score
  6.7 / 10
• Pricing
  Free plan
• Best for
  Free browser-based MIDI conversion
• Free plan
  Yes
• Paid from
  Free
• Polyphonic transcription
  Yes
• Facts checked
  20 Sep 2026

• Where it wins

  • Converts MP3, WAV, M4A, FLAC and OGG files
  • Handles polyphonic material with timing, pitch and velocity data
  • Runs locally with no signup or watermark

• Where it doesn't

  • Web-only workflow limits platform flexibility
  • No notation output or verified integrations
  • Very large files may exceed device memory

Our verdict on MIDIFLOW

MIDIFLOW is a free, browser-based audio-to-MIDI converter for musicians, producers and music learners. It accepts MP3, WAV, M4A, FLAC and OGG files, estimates notes locally on the user’s device, and exports editable MIDI. Its polyphonic transcription supports chords and overlapping notes, while melodic material is also covered. The workflow requires no account, and selected audio is not uploaded to the service, making it a practical option for users who want to keep processing on their own device.

Pricing is straightforward: the Free plan costs 0 and includes browser-based audio processing, no signup, no watermark and MIDI download. The published plan structure keeps the tool accessible for occasional conversion and does not add a paid tier that users need to evaluate. The main practical constraint is device capacity. Although the site states that it does not impose a server-side length limit, very large files may exceed available memory on the user’s device. That makes file size and local hardware more relevant than a subscription limit.

The standout feature is the amount of musical information retained in the export. MIDI files can include note timing, pitch, velocity and eligible pitch-bend data, and users can adjust the note sensitivity threshold before comparing the original audio with a synthesized MIDI preview. That comparison can help identify whether the transcription reflects the source closely enough for editing. MIDIFLOW is a good fit for free, browser-based conversion across common audio formats, especially when local processing matters. Users who need notation output, verified integrations or a broader desktop and platform ecosystem should choose another tool.

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MIDIFLOW pricing

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MIDIFLOW fact sheet

Alternatives to MIDIFLOW

• Klangio Transcription StudioA broad audio-to-score workspace with multi-instrument transcription and flexible exports.9.4
• SongscriptionA broad browser-based transcription tool with strong export and instrument coverage.9.2
• AnthemScoreA flexible AI transcription tool for turning recordings into editable notation and MIDI.9.1

See all MIDIFLOW alternatives →

Featured on iTechGuides

MIDIFLOW is listed in our AI Audio-to-MIDI Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated 7 Oct 2026 · How we research and update