CLI Reference¶
The fqxv binary has four subcommands:
| Command | Purpose |
|---|---|
compress |
Compress one or more FASTQ files to a .fqxv archive |
decompress |
Restore FASTQ — to files, split mates, or stdout |
verify |
Validate a container's CRC-32C checksums without decompressing |
info |
Print container metadata and per-stream sizes |

Global options¶
| Option | Description |
|---|---|
--threads <N> |
Worker threads (0 = all available cores). Default: 16, capped at available cores. |
-v, --verbose |
Increase log verbosity (-v debug, -vv/-vvv trace); overridden by RUST_LOG. |
-q, --quiet |
Silence all output except warnings and errors (also suppresses the summary). |
-h, --help |
Print help. |
-V, --version |
Print version. A build that is not a clean release tag also reports its git description (0.3.0 (v0.3.0-7-gab12cd34-dirty)). |
compress and decompress fan blocks out across threads with rayon; the
output is byte-identical regardless of thread count.