Free AI Music Detector

What Is AI Music?

AI music is any recording whose audio was produced, in whole or in part, by a generative model rather than by performers, instruments and microphones. In 2023 that mostly meant novelty loops. Today a single text prompt can return a finished three-minute song with lyrics, a lead vocal, backing harmonies, a full arrangement and a competitive master. Millions of such tracks are uploaded to streaming services every month, which is why so many listeners now find themselves asking a question that would have been absurd a few years ago: is this song AI generated?

It helps to separate three very different things that all get called “AI music”. First, fully generated tracks, where a model produced the entire recording end to end. Second, AI-assisted production, where a human wrote and performed the music but used machine tools for stem separation, mastering, pitch correction or arrangement ideas — this now describes a large share of all commercial releases and is entirely unremarkable. Third, synthetic vocals over human instrumentation, or the reverse, where the two are blended within a single song.

Only the first category is what most people mean when they ask an AI music checker for help, and it is the only one this detector attempts to address. The distinction matters, because AI-assisted music is not dishonest and not unlawful. A detector that treated every use of a machine tool as a red flag would be useless — it would flag most of the charts.

How AI Music Detection Works

AI Music Detector uses a proprietary audio analysis engine that evaluates multiple acoustic characteristics — spectral, dynamic, timbral, stereo and temporal — to estimate the likelihood that a recording was AI-generated. Results are probabilistic and should not be interpreted as definitive proof.

An AI audio detector does not recognise songs. It measures them. When you upload a file, this tool decodes it with the Web Audio API, samples up to five sections spread across the track, and runs a Hann-windowed Fast Fourier Transform over each one. That turns a stretch of sound into a picture of how much energy exists at every frequency, moment by moment. From those pictures the detector derives a small set of measurements, each chosen because generated and recorded audio tend to behave differently along that axis.

• Spectral ceiling

  The frequency above which a recording effectively contains no energy. Generative models are trained at a fixed bandwidth and their output often stops abruptly at a characteristic point; acoustic recordings usually taper.

• Cross-segment agreement

  How similar the tonal balance of one section is to another. Human performances drift — players get louder, rooms ring differently, arrangements change. Some generated material is uncannily consistent from start to finish.

• Crest factor and dynamic range

  The distance between the loudest peaks and the average level. Heavily limited masters compress that distance, and much generated output arrives pre-maximised.

• Spectral-centroid variability

  How much the perceived brightness of the sound moves over time. Real playing constantly shifts timbre; some synthesis holds a narrow band.

• High-band energy ratio

  How much of the total energy sits in the top octaves, where cymbals, breath, string noise and room air live — the details lossy encoders and some models discard first.

• Stereo correlation

  Whether the left and right channels behave like a recorded space or like a synthesised width effect.

Those measurements are weighted, combined, deliberately shrunk toward 50% and capped between 15% and 85%, because the model has not yet been calibrated against a labelled dataset and an engine that returns “99% AI” would be lying about its own certainty. When the sampled sections disagree with each other, or when the file is too degraded for the measurements to mean anything, the tool returns Inconclusive instead of guessing. That is a feature. The full processing pipeline is documented here.

AI vs Human Music

There is no single property that separates generated music from recorded music, which is precisely why detection is hard. What exists instead is a set of tendencies, each with enormous overlap between the two populations. Understanding those tendencies — and their exceptions — is the difference between using a detector well and misusing it.

Now the exceptions, because they are the whole story. Loudness-maximised electronic music, template-driven pop, quantised programming and low-bitrate uploads all produce exactly the “generated” signature above, despite being entirely human work. Meanwhile a generated track that has been re-recorded through speakers, re-mixed with live overdubs, or simply produced by a newer model with wider bandwidth will look comfortably human. False positives and false negatives are not edge cases here — they are the normal operating condition of every acoustic detector currently available, including this one.

Supported AI Music Platforms

These are the platforms whose output shaped the measurements this detector takes. Read “supported” carefully: it means the tool was designed with this kind of audio in mind, not that it can identify which one made your file. The current model has no per-generator labels, so it never reports “made with Suno”. When the evidence leans generated it says Unknown AI generator, and when it does not it says Likely human recording.

• Suno

  Full-song generator producing vocals, lyrics, instrumentation and a finished mix from a text prompt.

  Output is typically delivered already loudness-maximised, so dynamic range and spectral ceiling measurements often sit in a narrow band.

• Udio

  Prompt-driven song generator with extension and inpainting tools for building longer arrangements.

  Extended sections are stitched from separate generations, which can make cross-segment tonal balance unusually consistent — or unusually inconsistent at a seam.

• ElevenLabs Music

  Music generation from the company best known for synthetic speech and voice cloning.

  Vocal-forward material carries the artefacts of neural vocoding, which the engine only observes indirectly through high-band energy.

• Stable Audio

  Diffusion-based audio generator aimed at instrumental beds, loops and sound design.

  Diffusion output can show a hard spectral ceiling where the model's training bandwidth ends.

• Riffusion

  Generator built on spectrogram diffusion, later expanded into full song generation.

  Spectrogram-domain synthesis historically left visible banding in the high frequencies; newer versions much less so.

• Mubert

  Generative production-music service used for royalty-free background scoring.

  Loop-based construction can produce highly repeatable segment-to-segment measurements.

• Seed Music

  Research-lineage song generation system covering vocals, lyrics and instrumental backing in one pass.

  End-to-end generation tends to hold tonal balance steady across a whole track, which shows up as unusually high cross-segment agreement.

• MiniMax

  Multimodal model family whose music mode produces complete songs from short prompts or reference clips.

  Reference-conditioned output can inherit the dynamics of its reference, so crest factor alone is a weak signal here.

• Mureka (Sonauto)

  Song generator formerly known as Sonauto, now operating as Mureka, aimed at prompt-to-track workflows with vocal control and style transfer.

  Style-transfer passes can smooth brightness movement, lowering spectral-centroid variability relative to a live performance.

• Future AI models

  Models that do not exist yet, or that shipped after the engine was last tuned.

  Every measurement here degrades as generators improve. Treat older results as less reliable over time, and read the confidence level rather than the headline number.

Generator attribution — naming the platform behind a track — is a genuinely harder problem than detection, and it degrades even faster as models are updated. It is on the roadmap only behind a properly evaluated classifier. Until then, any tool that confidently names a generator from audio alone is telling you more than it can know.

Why Detect AI Generated Music

People reach for an AI song detector for very different reasons, and the appropriate strength of evidence differs enormously between them. Casual curiosity needs almost nothing; a takedown needs far more than any acoustic tool can offer.

Listeners

Checking an unfamiliar track before sharing it, adding it to a playlist or recommending it to someone else.

Musicians

Reviewing a suspicious collaboration, sample pack or submission before signing anything or releasing it.

Labels and curators

A first, non-binding screening step in front of a human review — never the review itself.

Journalists

Adding one technical data point to a story that already rests on human sourcing and documents.

Educators

Demonstrating concretely how synthetic-media detection works, and — more usefully — where it fails.

Researchers

Inspecting reproducible, documented signal measurements on their own material rather than a black-box score.

Worth stating plainly: detecting AI music is not about punishing anyone. Generated music is legal, and much of it is made by people who are open about how they made it. The legitimate uses of detection are transparency, honest labelling, platform moderation policy and research — not vigilante accusations built on a single percentage.

Limitations

This section is longer than most competitors’ because it is the most useful part of the page. Here is what this detector genuinely cannot do.

• It cannot name the generator behind a track, and it will never guess one.
• It cannot separate AI vocals from AI instrumentals — there is no stem separation and no vocal-specific model in this version.
• It cannot prove authorship, and it is not forensic evidence in any legal, academic or employment context.
• It cannot see through heavy remixing, re-recording, re-amping or aggressive mastering.
• It cannot recognise a specific song, artist or release by fingerprint — it has no database.
• It cannot reliably assess very short clips; under ten seconds there is simply not enough material to sample.
• It cannot compensate fully for low-bitrate encoding, which removes the exact detail the analysis reads.
• It cannot keep pace automatically with generators released after the current model version.

Detection is also inherently asymmetric. A tool like this is much better at raising suspicion than at clearing a track: a “Likely human-created” result is weak evidence of anything, because every generated track that has been through human post-production lands there too. Treat a clean result as the absence of a signal, not as a certificate. The accuracy page covers this in full, including why we publish no accuracy percentage.

Privacy

Most “free” detection tools upload your audio to a server, and their privacy policy then explains what they may do with it. This one has a simpler answer: your file is never uploaded at all. Decoding and analysis both run inside your browser tab using the Web Audio API, on your own device’s processor. No audio is transmitted to us, so there is no copy of your music on our servers to store, retain, share, sell or leak.

Because there is no upload, deletion is automatic and immediate in the strongest possible sense: the decoded audio exists only in your browser’s memory for the duration of the analysis, and is discarded when you remove the file, run another analysis, or close the tab. Nothing survives the session. There is no account, so there is no upload history and no profile attached to what you checked.

Results are session-only. No report link is ever created, no report page exists at a URL, and nothing is written to a database — if you want to keep a result, download the self-contained PDF, which carries no links, IDs or tracking data. Read the full privacy policy.

Explore the detector

• AI Song Detector
• AI Song Checker
• Detect AI Generated Music
• Is This Song AI Generated?
• AI Audio Detector
• Free AI Music Detector
• Blog — guides and research notes
• How AI Music Detection Works
• Methodology