Alternatives to Basic Pitch: Best MP3 to MIDI Converters in 2026

Spotify's Basic Pitch is one of the most well-known MP3 to MIDI converters out there. It's free, it uses a solid neural network, and it produces decent results on clean recordings. But it has limitations — you have to upload your file to Spotify's servers, there's no piano roll preview, and the output is a raw MIDI dump with no editing options.

If you've hit those walls, you're not alone. We spent two weeks testing every major alternative to Basic Pitch, converting the same 30 audio files across each tool and comparing accuracy, speed, privacy, and usability. Here's what we found.

Quick Picks

If you don't want to read the whole thing:

• Best overall: MP3toMIDI — runs in your browser, no upload, same AI model as Basic Pitch, adds piano roll preview and multi-format support
• Best for complex mixes: Melodyne — industry-standard accuracy, but $99+
• Best for batch conversion: AnthemScore — processes multiple files, desktop app, $29 one-time

Comparison Table

In-Depth Reviews

1. MP3toMIDI — Best Overall

MP3toMIDI uses the same Basic Pitch neural network under the hood, so the accuracy is essentially identical. What makes it different is the experience around the conversion. There's no file upload — everything runs in your browser via WebAssembly. You drag in an MP3 (or WAV, FLAC, OGG, M4A), wait about 10-12 seconds, and get a piano roll preview showing every detected note.

That preview matters more than you'd think. With Basic Pitch, you download a MIDI file and open it in a DAW before you can tell if the transcription is any good. With MP3toMIDI, you see the notes on screen immediately. If something looks off, you can re-adjust settings and re-run without downloading anything.

The tool also supports WAV to MIDI, FLAC to MIDI, and other audio formats, which Basic Pitch doesn't handle natively. For musicians who record in lossless formats, this saves a conversion step.

Pros: Free, no upload, piano roll preview, multi-format support, fast

Cons: Large files (50MB+) can be slow on older devices since processing happens locally

2. Melodyne — Best for Complex Mixes

Melodyne is the industry standard for audio-to-note transcription. Its Direct Note Access (DNA) technology can isolate individual notes from a polyphonic recording — think extracting a single guitar string from a full chord. No browser-based tool comes close to this level of precision.

The downside is price ($99 for Essential, $849 for Studio) and the fact that it's desktop-only software. For most people converting simple piano or vocal recordings, it's overkill. Where it shines is complex arrangements where you need to extract one instrument from a dense mix.

Pros: Best accuracy on the market, polyphonic separation, professional-grade

Cons: Expensive, desktop only, steep learning curve

3. AnthemScore — Best for Batch Processing

AnthemScore is a desktop app that uses AI to transcribe audio to MIDI and sheet music. At $29 (one-time), it's the most affordable paid option. Its killer feature is batch processing — point it at a folder of audio files and it converts them all overnight.

Accuracy is good for single-instrument recordings but drops with complex mixes. It also generates sheet music, which is useful if you're preparing parts for live musicians.

Pros: One-time payment, batch processing, sheet music output

Cons: Desktop only, moderate accuracy on complex audio, slower than browser tools

4. Klangio — Best for Beginners

Klangio is a web-based transcription service that lets you choose the instrument type before conversion — piano, guitar, or bass. This helps the AI focus on the right frequency range and improves accuracy for that specific instrument.

The free tier limits you to 30-second clips. The paid plan ($5/ month) removes this limit and adds multi-track separation. It's a good option if you're working with short musical phrases and want instrument-specific optimization.

Pros: Instrument-specific models, easy to use, web-based

Cons: 30-second limit on free tier, requires file upload, subscription pricing

5. MuseScore Audio-to-MIDI

MuseScore 4 added audio import that converts recordings to notation. If your end goal is sheet music rather than a MIDI file, this is a solid free option. It's slower than dedicated tools and the MIDI output isn't as clean, but it integrates directly with one of the best free notation editors available.

Pros: Free, open source, direct notation editing, sheet music export

Cons: Slow, MIDI output needs cleanup, desktop only

Which One Should You Choose?

• Just need a quick MIDI file? Use MP3toMIDI. Free, fast, no signup, and you can preview before downloading.
• Working with a complex mix? Melodyne is worth the investment if accuracy matters.
• Have 100 files to convert? AnthemScore's batch processing will save you hours.
• Extracting piano specifically? Try MP3toMIDI's piano extraction — it's optimized for keyboard instruments.
• Want sheet music output? MuseScore does both transcription and notation.

For most people reading this, MP3toMIDI is the right starting point. It's free, it takes 30 seconds to try, and if the results aren't good enough for your use case, then consider upgrading to a paid tool.