SeqAn is an open source C++ library of efficient algorithms and data structures for the analysis of sequences with the focus on biological data. Our library applies a unique generic design that guarantees high performance, generality, extensibility, and integration with other libraries. SeqAn is easy to use and simplifies the development of new software tools with a minimal loss of performance.

The SeqAn library itself, the tests and demos are licensed under the very permissive 3-clause BSD License. The licenses for the applications themselves can be found in the LICENSE files.

Older compiler versions might work but are neither supported nor tested.

• GCC ≥ 13
• Clang/LLVM ≥ 18
• Intel oneAPI C++ Compiler 2025.0 (IntelLLVM)

• Visual C++ ≥ 17.0 / Visual Studio ≥ 2022

• Intel/AMD platforms, including optimisations for modern instruction sets (POPCNT, SSE4, AVX2, AVX512)
• All Debian release architectures supported, including most ARM and all PowerPC platforms.

• To build tests, demos, and official SeqAn applications you also need CMake ≥ 3.12.

Some official applications might have additional requirements or only work on a subset of platforms.

• Getting Started
• Manual
• Tutorial
• How-Tos
• API Documentation (stable)

• Mailing List
• GitHub Project (issues, source code)