RastQC is a drop-in replacement for FastQC written in Rust. It implements all 12 FastQC modules with matching algorithms and output formats (HTML, fastqc_data.txt, ZIP, native MultiQC JSON). The streaming parallel pipeline runs 2-3x faster than FastQC on real sequencing data. For Oxford Nanopore data (Fast5 + POD5 readers and long-read modules), install the sibling package rastqc-nanopore.