Analyze BPM, detect key, convert and edit your audio instantly. No upload, no account, no friction — everything runs in your browser.
All processing happens locally in your browser. Your audio files never touch a server.
Web Workers and optimized algorithms deliver results in seconds, not minutes.
Every tool is fully unlocked. No premium tier, no account, no hidden limits — ever.
Tools
16 professional-grade audio tools. All free, all browser-based, all instant.
Detect the exact tempo of any track. Essential for beatmatching and DJ prep.
Find the musical key and Camelot value. Mix harmonically, every time.
Visualize the full frequency spectrum. Spot problem frequencies instantly.
Instantly view duration, bitrate, sample rate, and format of any audio file.
Compress WAV files to MP3 at any bitrate. Runs entirely in your browser.
Restore MP3s to lossless WAV for professional editing and mastering.
Cut and trim audio with waveform precision. Export losslessly in seconds.
Normalize loudness to Spotify, podcast, or broadcast standards.
Speed up or slow down audio without changing pitch. Perfect for DJ practice.
Shift pitch by semitones without changing speed. Transpose any track instantly.
Automatically remove silent gaps from recordings, podcasts, and DJ sets.
Boost bass frequencies with adjustable EQ. Enhance low-end in seconds.
Extract any section as a seamless loop. Perfect for samples and DJ sets.
BPM + Key + Camelot in one click. Professional DJ analysis in your browser.
Precise tap-tempo metronome for practice, production, and live performance.
Tap to the beat to calculate BPM instantly
About WavinTools
WavinTools is a free suite of professional-grade audio tools that run entirely in your browser. No signup, no upload, no limits. Every tool uses the same algorithms found in professional DJ software — HPCP chromagram for key detection, multi-segment autocorrelation for BPM, and ffmpeg.wasm for audio processing.
Our DJ Track Analyzer combines BPM detection, key detection, and Camelot mapping in one tool — like having Rekordbox in your browser. The BPM Finder uses multi-segment autocorrelation for stable results across all genres, while the Key Detector uses HPCP chromagram analysis — the same approach used by Mixed In Key and Rekordbox.
Convert between formats instantly in your browser. Convert WAV to MP3 at 320 kbps for DJ libraries and streaming, or convert MP3 to WAV at 44.1 kHz or 48 kHz for DAW projects and professional workflows. Powered by ffmpeg.wasm — no server, complete privacy.
The Audio Normalizer adjusts volume to any LUFS target — -14 LUFS for Spotify, -16 LUFS for Apple Podcasts, -23 LUFS for broadcast (EBU R128), or -9 LUFS for club DJ use. Unlike simple volume boosting, it uses integrated loudness measurement to prevent clipping.
The Pitch Changer shifts audio pitch by semitones without changing speed — essential for harmonic mixing when two tracks are in incompatible keys. The Tempo Changer changes speed from 0.25× to 3.0× without affecting pitch, using ffmpeg's atempo filter.
The Audio Trimmer cuts MP3 and WAV files with waveform preview and lossless output. The Audio Loop Maker extracts perfect loops from any section. The Remove Silence tool automatically strips dead air from podcasts and recordings.
Every tool on WavinTools runs entirely client-side using the Web Audio API and WebAssembly. Your audio files are processed in your browser — nothing is ever uploaded to a server. No account required. No file size limits. Works offline once loaded.