Downsampling Tool

  1. Adjust K (length of k-mers).
  2. Adjust tau (compression factor).
  3. Select a FASTQ file.

Parameter Values: We recommend K = 15 for short-read datasets, 22 for long-read datasets, and 8 for protein sequences. Typical values of tau range from 0.01 (aggressive downsampling) to 100 (very little compression). The effects are on a logarithmic scale - there is a small difference between 90 and 100, but a large difference between 1 and 10.

Note: The web app only supports single-end fastq files. For interleaved and paired-end reads, use the official command line tool..