Everything a music producer, DJ or audio engineer needs — built entirely in your browser. Upload audio, analyse tracks, plan sets and protect your music. Your files never leave your device.
Detect tempo & musical key instantly
Upload any audio file and get the BPM, musical key, Camelot notation and scale in seconds — entirely in your browser, nothing uploaded.
Find the tempo of any track
Instantly measure the BPM of any song by uploading an audio file. Fast, accurate, free — no sign-up, no servers.
Discover the musical key of any song
Find the musical key, scale and Camelot wheel notation for any audio file. Essential for harmonic mixing and music production.
Plan perfect sets with harmonic mixing
Upload your whole library. We detect BPM & key for every track, then generate an optimally ordered set using the Camelot Wheel so every transition sounds flawless.
Tap the beat to measure any tempo
Tap the button or press Space in time with any track to measure its BPM instantly. Great for live sets, drum practice and quick checks.
Keep perfect time, in any browser
A precision web metronome powered by the Web Audio API. Set tempo, adjust time signature, and keep perfect time during practice or recording sessions.
Check if your track is copyright-clear
Upload your music and instantly check it against a database of commercially released songs using ACRCloud audio fingerprinting — before you release or stream.
Protect your music with voice IDs
Add a repeating audio watermark to any track using your own jingle, a mic recording or AI-generated voice ID. All processing happens in your browser — files never leave your device.
Is this track AI-generated?
Upload any song and instantly find out whether it was made by AI or a human. Identifies music from Suno, Udio, ElevenLabs, Seed Music, Riffusion and more — powered by ACRCloud.
Whether you're a music producer, DJ, songwriter or audio engineer, having the right tools can save you hours of work. Our free browser-based music tools are built with modern Web Audio API technology, which means everything runs directly in your browser — no apps to download, no accounts to create, and no files ever uploaded to a server. The only exceptions are our server-powered tools (Copyright Checker and AI Music Detector) which send your audio to specialist APIs for analysis.
Our BPM and Key Finder analyses the tempo and musical key of any audio file instantly. Upload an MP3, WAV, FLAC or any common audio format, and within moments you'll see the BPM, the musical key in standard notation, whether it's major or minor, and the Camelot wheel code used in harmonic mixing. This is invaluable for music producers who need to match loops, samples and stems, and for DJs who want to transition smoothly between tracks.
Don't have the audio file handy? The Song BPM Finder lets you search by artist and song title to instantly look up the tempo of any commercially released track. Whether you're preparing a DJ set, syncing a playlist to a workout pace, or just curious about a track's rhythm, you'll get an accurate BPM reading without needing to upload anything.
The Song Key Finder lets you search for any song by name and instantly see its musical key, mode (major or minor) and Camelot wheel code. Perfect for producers who want to write melodies, harmonies or chord progressions that complement a reference track, and for DJs who need to plan harmonically compatible transitions without uploading audio files.
The DJ Set Planner takes harmonic mixing to the next level. Upload your entire track library in bulk, let the tool detect BPM and key for every song automatically, then generate an optimally ordered set list based on the Camelot Wheel system. Compatible transitions are highlighted so you always know which tracks flow naturally into each other. Export your finished set list as a CSV or PDF for easy reference in the booth.
If you need to tap out the tempo of a track by ear, the BPM Tapper lets you tap the button or press Space in time with the music to calculate a running BPM average. For practice sessions and recording, the precision Online Metronome uses the Web Audio API's sample-accurate clock for rock-solid timing that won't drift, no matter how long your session runs.
Before releasing a track, use the Music Copyright Checker to check whether your audio matches any commercially released song using ACRCloud audio fingerprinting. This can save you from unexpected takedowns on YouTube, Spotify or social media. For protecting your own unreleased stems and productions, the Audio Watermark Tool lets you add a repeating audio watermark — your own voice ID, a custom jingle or an AI-generated tag — to any track, so you can safely share previews without giving away the full clean file.
With AI music generators like Suno, Udio and ElevenLabs flooding streaming platforms, knowing whether a track is human-made or AI-generated has become essential. Our AI Music Detector powered by ACRCloud analyses your uploaded audio and returns an AI probability score, the specific AI engine detected (Suno, Udio, Mureka, Riffusion, Seed Music, MiniMax and more), and a component breakdown covering the full track, vocals and accompaniment separately. Whether you're a music distributor verifying catalogue authenticity, a producer protecting your style, or a label ensuring your releases are 100% human-made, this tool gives you a reliable, data-driven answer in seconds. If you need tracks that pass every AI detection check, browse our exclusive ghost-produced tracks — composed, performed and produced entirely by human professionals.
Yes. Every tool on this page is 100% free to use with no hidden charges, no subscription required and no account to create. The BPM Finder, Song BPM Finder, Song Key Finder, DJ Set Planner, BPM Tapper, Metronome, Audio Watermark Tool, Music Copyright Checker and AI Music Detector are all free to use.
Most tools run entirely in your browser — BPM analysis, key detection, DJ set planning, BPM tapping, metronome and audio watermarking never upload your files anywhere. The Music Copyright Checker sends a short audio fingerprint (not the full file) to the ACRCloud API for matching. The AI Music Detector uploads your audio file to ACRCloud for AI analysis, and the file is deleted from their servers immediately after results are returned.
The browser-based tools support any format your browser can decode, typically MP3, WAV, AIFF, FLAC, AAC (M4A), OGG and WebM. The Copyright Checker and AI Music Detector support MP3, WAV, FLAC, AAC, OGG and M4A files up to 50 MB. For best results across all tools, use MP3 or WAV.
The BPM Finder uses a time-domain autocorrelation algorithm that achieves high accuracy on rhythmically consistent material like electronic music, hip-hop and pop. Results are typically accurate to within ±1 BPM for most modern music. For complex tracks with frequent tempo changes, the reading represents the dominant tempo.
The Camelot Wheel is a system that assigns each musical key a two-character code (e.g. 8A for A minor, 8B for C major). Tracks with the same number, or adjacent numbers on the wheel, are harmonically compatible — meaning mixing between them sounds musical rather than clashing. Our BPM & Key Finder, Song Key Finder and DJ Set Planner all display Camelot codes to make harmonic mixing straightforward.
Yes. Powered by ACRCloud, the AI Music Detector not only gives an overall AI probability score but also identifies the specific AI engine used — including Suno, Udio, ElevenLabs, Mureka, Riffusion, Seed Music and MiniMax. When available, it also breaks down the analysis by component: full track, vocals and accompaniment separately.
