BiOCamLib is an OCaml foundation upon which a number of the bioinformatics tools are built, including KPop https://github.com/PaoloRibeca/KPop. It consists of four tools: 1. RC, which can efficiently compute the reverse complement of sequences. 2. Octopus, which is a high-throughput program to compute the transitive closure of strings. 3. Parallel, which allows the splits and processes an input file chunk-wise using a reader/workers/writer model. 4. FASTools, which is a Swiss-knife tool for the manipulation of FASTA/FASTQ files.