Cycling through all six. Tap any point to stop.

Measured on six things

Convert MP3 melodies into editable MIDI files online for ...

Security

HTTPS is enforced and SPF is set, but HSTS, CSP, frame protection, Referrer-Policy and DMARC are all missing — 3/12 on the header checklist, with no published audits or compliance claims.

Screenshots

1 / 1

Mp3toMidi

About this app

MP3 to MIDI Converter is a browser-based tool that turns clear MP3, WAV, and M4A recordings into editable .mid files you can drop straight into Ableton Live, Logic Pro, FL Studio, and other DAWs. It works best with focused material — an isolated vocal, a piano phrase, a guitar riff, a bass line, or a synth lead — rather than dense full mixes, which tend to produce messy, extra, or missing notes. The workflow is simple: upload a file, let the AI transcription engine detect pitch, timing, and note starts, preview the first 30 seconds (free and guest users get up to three previews a day), then download and refine the result in your DAW. Upload limits scale by plan (10MB free, 25MB Basic, 50MB Standard), and files are auto-cleaned after conversion. It's a practical starting point for producers, transcribers, and musicians rather than a one-click final arrangement.

Key features

1Browser-based MP3/WAV/M4A to MIDI conversion with no plugin or desktop install required.
2Three free 30-second previews per day for guests and free users before committing to a paid conversion.
3DAW-ready .mid export for Ableton Live, Logic Pro, FL Studio, GarageBand, Reaper and Cubase.
4Tiered plans ($9.99 Basic / $19.99 Standard, cheaper yearly) scaling file size, minutes and queue priority.
5Auto-cleanup of uploaded files after conversion, per the site's stated workflow.

Target customer profile

Drawn from the product itself, not from a survey.

Demographic

Music producers and beatmakers

Pain points

Recreating melodies by ear from reference tracks is slow and tedious

Primary needs

Fast editable MIDI to seed a project or cover version

Demographic

Music students and transcribers

Pain points

Manual note-by-note transcription of recordings eats hours

Primary needs

A draft MIDI to speed up ear training and notation work

Demographic

Content creators and hobbyist musicians

Pain points

No time or skill to manually build MIDI parts from samples

Primary needs

A quick, browser-based way to turn riffs into playable MIDI

Scout Review

Written by AI from measured evidence, scored out of 100.

Mp3toMidi is a competent, honestly-positioned browser converter that does one job and does it without ceremony: drop a focused MP3/WAV/M4A, get an editable .mid for Ableton, Logic or FL Studio. The upload flow is immediate, three free 30-second previews a day lower the barrier, and pricing at $9.99/$19.99 (cheaper yearly) is legible. Measured speed is decent on mobile (75/100, 1.2s LCP) but dragged by 699ms TBT and a weaker desktop score. Security is the real soft spot — 3/12 on headers, no HSTS/CSP/DMARC, no published audits — for a product handling users' unreleased audio. Design is average with a noisy hero and buried limits; accessibility is strong at 96/100 bar a contrast issue. Growth hinges on whether a paid browser middle can hold against free Basic Pitch and pro Melodyne.

Measure by measure

Usability

Drop zone front and center, three free 30-second previews a day, and clear pricing tiers make the path to value short. Long repetitive explainer copy and buried file limits are the friction.

Design

Clean utility-first converter with an obvious orange upload CTA and consistent type hierarchy, but a busy low-contrast hero collage, orphaned grid cells and tiny grey plan-limit text drag it to average.

Speed

Lighthouse mobile 75/100 with a 1.2s LCP and near-zero CLS is solid, but a 699ms TBT and a lower desktop score (64) show real main-thread blocking under the hood.

Security

HTTPS is enforced and SPF is set, but HSTS, CSP, frame protection, Referrer-Policy and DMARC are all missing — 3/12 on the header checklist, with no published audits or compliance claims.

Accessibility

Lighthouse a11y 96/100 with a single failing audit — insufficient color contrast — which the visual audit confirms in the small grey supporting text. No WCAG statement or multi-language support found.

Growth

A real, recurring producer workflow with an honest 'focused stems, not full mixes' wedge — but it sits between a free open-source option and a pro desktop standard, with no moat yet.

Improvement areas

Security headers are largely absent (3/12) with no published audit or data-handling page.
Hero collage and orphaned grid cells make the top of the page noisy and break layout rhythm.
Plan-limit and supporting text fail contrast and are too small to read at a glance.
No clear moat against free Basic Pitch or established Melodyne; positioning needs a sharper wedge.

Design & Usability

The homepage does the one thing a converter must: it puts a dashed drop zone and a single orange Upload button front and center, so a visitor can start without scrolling. Type hierarchy is consistent and the FAQ/accordion patterns are tidy. Where it slips is craft — a faded collage of DAW screenshots and 'AI MP3 to MIDI' lettering sits behind the nav and headline and makes the top of the page noisy, orphaned grid cells leave awkward gaps, and the plan limits (10MB free, 25MB Basic, 50MB Standard) are printed in tiny light-grey text right where users need them most. Usability is helped by three free 30-second previews a day and clear $9.99/$19.99 tiers, but the explainer copy repeats 'how it works' across several sections for what is fundamentally an upload-and-convert tool.

Speed & Security

Speed is a mixed bag with real receipts: Lighthouse mobile scores 75/100 with a 1.2s LCP, 1.2s FCP and a near-perfect 0.002 CLS, so the page paints fast and doesn't jump. But TBT is 699ms and the desktop score drops to 64 — worse than mobile — which points to main-thread work that will bite on slower machines. Security is the weak flank. HTTPS is enforced and SPF is configured, but the header probe found no HSTS, no CSP, no frame protection, no X-Content-Type-Options, no Referrer-Policy and no DMARC, scoring 3/12 on the checklist. For a service that asks users to upload unreleased audio, the absence of a published security page, audit or bug bounty is a real gap, not just an unverified nice-to-have.

Accessibility & Growth

Accessibility is the strongest measured dimension: Lighthouse scores 96/100 with a single failing audit — insufficient color contrast — and the visual audit independently flags the same small light-grey supporting text and plan-limit copy. Fixing contrast on that microcopy would likely close the gap. There's no WCAG statement or multi-language support, so it's good-but-not-documented. Growth is a judgement on the idea: converting a focused stem into editable MIDI is a real, recurring producer task, and the site is admirably honest that dense mixes produce messy results. The problem is the competitive box — Spotify's Basic Pitch is free and open-source, Melodyne is the paid desktop standard — leaving this browser tool as a convenience play with no clear moat. The domain is only about half a year old, so traction is context, not verdict.

Conclusion

If you're a producer who wants a fast MIDI sketch from an isolated vocal or riff and you'd rather not install anything, this is a reasonable starting point — the free previews let you judge quality before paying. Go in expecting cleanup in your DAW, which the site itself says. Before trusting it with sensitive unreleased material, note the thin security posture: no CSP, no HSTS, no DMARC, no published audit. The product's honesty about its limits is its best feature; its missing moat and missing security page are what to watch.

Suggestions for improvement

Ship HSTS, CSP, frame protection, Referrer-Policy and DMARC — 3/12 on headers is a fixable, credibility-building gap.
Publish a short security/data-handling page explaining the auto-cleanup of uploads and retention windows.
Raise contrast on the small grey plan-limit and supporting text to clear the one failing Lighthouse audit.
Simplify the hero: drop or heavily fade the DAW collage so the headline and upload card own the top of the page.

How we score

Alternatives comparison

Named competitors, point by point. Nobody paid to appear here or to be left out.

	Mp3toMidi	Melodyne	Basic Pitch (Spotify)
Price to start	Free previews; paid from $9.99/mo ($4.99 yearly)	Paid desktop license, no free tier	Free and open-source
Platform	Browser-based, no install	Desktop application	Browser-based / open-source library
Transcription precision	Best on focused stems; dense mixes need cleanup	Professional-grade pitch/timing editing, far more precise	Solid open-source polyphonic transcription
Free preview / trial	Three 30-second previews per day	Trial available, then paid	Fully free
MIDI export to DAW	Yes — .mid for Ableton, Logic, FL Studio, etc.	Yes — audio-to-MIDI export	Yes — MIDI output