Audio tools for beatmakers. Built for speed.
Find the key, tempo and tonal balance of any sample — in one click. Everything runs in your browser. No upload, no tracker, no signup.
Tools
The toolkit
10 live · 0 in dev
Key Finder
Detect the musical key and mode of any sample. Includes Camelot code for harmonic mixing.
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BPM Finder
Find the BPM of any track. Spectral-flux onset detection with octave-folding to the musical range.
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EQ Visualizer
Load a track, EQ it live with a 7-band parametric, watch the post-EQ spectrum react in real time.
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808 / Note Tuner
Drop a one-shot — get the note, octave, and cents deviation. Tune your 808s in one click.
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Metronome
Sample-accurate metronome using Web Audio look-ahead scheduling. Subdivisions, accents, taps.
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Sample Chopper
Slice a loop into pads MPC-style, drag steps into a pattern, export the rearranged sequence as a WAV.
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Free Sample Packs
Daily-aggregated free drum kits, loops and 808s from Reddit, Freesound, producer blogs and YouTube.
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Gain & Loudness Meter
Measure peak dBFS, RMS and integrated LUFS-I (BS.1770). Know exactly how hot your sample is before mixing.
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BPM Tap & Delay Calc
Tap tempo + delay time table. Get every note value from 1/1 to 1/32 — dotted and triplets — in milliseconds.
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Bit Crusher
Reduce bit depth (1–16 bit) and sample rate for lo-fi, vintage or glitchy textures. Live preview + WAV export.
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privacy
Your files never leave your browser. Everything is decoded and analyzed locally with Web Audio API.
speed
No server queue. Heavy jobs run in Web Workers, so the UI stays smooth even on long files.
no signup
Open, use, leave. No account, no paywall, no third-party cookies.