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About This Tool

Create beats online with 48 synthesized instrument pads, 16-step sequencer, delay/reverb/distortion FX, XY filter pad, mic sampling, and session recording. 100% browser-based, no signup.

48 synth pads16-step sequencerFX + XY pad

What Is LoopCraft?

LoopCraft is a free browser-based beat maker and loop synthesizer that uses the Web Audio API to generate sounds entirely in your browser. It features 48 instrument pads across 6 categories (kick, snare, hihat, bass, melody, chords), a 16-step beat sequencer, and real-time audio effects. Unlike sample-based beat makers, LoopCraft synthesizes every sound from scratch using oscillators, noise buffers, and filters — so there are no large sample files to download.

How to Make a Beat

Start by clicking the Play button to start the transport. Tap pads to trigger sounds — clicking a pad once activates it as a loop (it will re-trigger every bar), clicking again stops it. Switch to the Sequencer tab to program a 16-step pattern: click cells to toggle steps on/off for each instrument row. Use the genre preset buttons (Techno, House, Ambient, HipHop) to load pre-made patterns. Adjust the BPM slider or use Tap Tempo to set your speed. The XY pad controls the filter cutoff (horizontal) and delay mix (vertical) in real-time.
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Frequently Asked Questions

Is LoopCraft really free?
Yes, LoopCraft is 100% free with no signup, no watermark, and no usage limits. All audio synthesis happens in your browser using the Web Audio API — there are no server costs.
Can I export my beats?
Yes. Use the session recorder to record your performance in real-time, then download as an audio file. The recording captures everything you play including pads, sequencer, and mic samples.
Does it work on mobile?
Yes, LoopCraft works on mobile browsers that support the Web Audio API. Touch the pads to trigger sounds. However, the mixer and FX controls are optimized for larger screens.
Can I use my own voice samples?
Yes. The mic sampler lets you record audio from your microphone, automatically trims it to the nearest bar length, and lets you loop or trigger it as a pad.
What are the genre presets?
LoopCraft includes 4 genre presets: Techno (138 BPM), House (124 BPM), Ambient (90 BPM), and HipHop (90 BPM). Each preset loads a pre-configured sequencer pattern and active pads.

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