ElekPrep

Free browser-based sample prep tool for Elektron devices. No install, no account, nothing leaves your machine.

https://luizvarela.github.io/elektron-sample-prep/

What it does

Drop any audio file in, pick your device, get a click-free WAV ready to load via Transfer or Elektroid.

• Auto zero-cross trim — Snaps trim points to where the waveform crosses zero, eliminating clicks and pops at sample boundaries
• Format conversion — Converts to 48kHz / 16-bit automatically. Handles resample, bit depth reduction, and stereo-to-mono downmix
• Device profiles — Digitakt, Digitakt II, Analog Rytm, Model:Samples. Sets the correct target format and warns about length limits
• Loop calculator — Enter BPM and step count, get a mathematically perfect loop length. No more gaps from inaccurate internal recording
• Normalize — Optional -1dB peak normalization
• A/B preview — Listen to original vs. processed before exporting

Supported formats

WAV, AIFF, MP3, FLAC, OGG — anything your browser can decode.

How it works

Single HTML file using the Web Audio API. All processing happens locally in your browser. No server, no upload, no dependencies.

License

MIT