| ▼Alignment | The alignment module contains concepts, algorithms and classes that are related to the computation of pairwise and multiple sequence alignments |
| Aligned Sequence | Provides seqan3::AlignedSequence, as well as various ranges that model it |
| Band | Data structures for computing banded sequence alignments |
| Configuration | Provides configuration elements for the pairwise alignment configuration |
| Matrix | Provides data structures for representing alignment coordinates and alignments as a matrix |
| Pairwise | Provides the algorithmic components for the computation of pairwise alignments |
| Scoring | Provides the data structures used for scoring alphabets and sequences |
| ▼Alphabet | |
| Adaptation | Provides alphabet adaptions of some standard char and uint types |
| Aminoacid | Provides the amino acid alphabets and functionality for translation from nucleotide |
| CIGAR | Provides the CIGAR operation alphabet, along with the CIGAR cartesian composition |
| Composite | Provides data structures joining multiple alphabets into a single alphabet |
| Gap | Provides the gap alphabet and functionality to make an alphabet a gapped alphabet |
| Mask | Provides the mask alphabet and functionality for creating masked composites |
| Nucleotide | Provides the different DNA and RNA alphabet types |
| Quality | Provides the various quality score types |
| Structure | The structure module contains alphabets for RNA and protein structure |
| Argument Parser | The Argument Parser Module |
| ▼Core | Provides core functionality used by multiple modules |
| Algorithm | Provides core functionality used to configure algorithms |
| Char operations | Provides various operations on character types |
| Concept | Additional concepts that are not specific to a SeqAn3 module |
| ▼Parallel | This module contains types and utilities for concurrent execution of algorithms in SeqAn |
| execution | Adopts the STL execution policies |
| Type Traits | Provides various type traits and their shortcuts |
| ▼IO | The IO module provides stream handling formatted I/O |
| Alignment File | Provides files and formats for handling alignment data |
| Sequence File | Provides files and formats for handling sequence data |
| Stream | The stream sub-module contains data structures and functions for streaming and tokenization |
| Structure File | Provides files and formats for handling structure data |
| ▼Range | The range module provides general purpose containers, decorators and views |
| Container | The container submodule contains special SeqAn3 containers and generic container concepts |
| Decorator | The decorator submodule contains special SeqAn3 decorators and generic decorator concepts |
| View | Views are "lazy range combinators" that offer modified views onto other ranges |
| ▼Search | Contains datastructures and algorithms for searching |
| Algorithm | Provides seqan3::search |
| Configuration | Data structures and utility functions for configuring search algorithm |
| FM Index | Provides seqan3:fm_index and seqan3:bi_fm_index as well as respective cursors |
| ▼std | A subset of the C++20 standard library made available in pre-C++20 contexts |
| Algorithm | Provides core functionality used to configure algorithms |
| charconv | The <charconv> header from C++17's standard library |
| concepts | The <concepts> header from C++20's standard library |
| iterator | The <iterator> header from C++20's standard library |
| new | The <new> header from C++17's standard library |
| ranges | The <ranges> header from C++20's standard library |
| Type Traits | Provides various type traits and their shortcuts |