Cortical-DAC Convert

Convert CL1 H5 recording files to JSON

The conversion runs entirely in your browser via WebAssembly — no upload needed, no file size limits.
POST /api/convert Server API (for CLI/curl)

For automation or non-browser usage, send a POST request with a multipart file upload.

ParameterTypeDescription
file*File (.h5)H5 recording file from CL1 device

Example

curl -X POST https://cortical-dac-convert.vercel.app/api/convert \
  -F "file=@recording.h5"

Response

{
  "id": "conv_1749123456_abc123",
  "channels": 16,
  "frames": 48000,
  "attributes": { "sample_rate": 25000 },
  "samples": [0, -1, 2, ...]                              
}
}

Files larger than ~4 MB are streamed. For best results on large files, use the browser tool below.

💻 Browser Converter (no size limit)
Processing happens locally. Your file never leaves your device.