Atomic does not put constraints on annotation layers, and provides tooling and infrastructure for multi-layer corpus annotation.
Atomic is implemented in Java and runs on all major operating systems (Linux, Mac OS, Windows, etc.).
Atomic is extensible via plugins, e.g., for new editors, data views, or NLP components.
Atomic includes Pepper, a conversion framework for a large number of linguistic formats.
Atomic’s data model Salt works independent from certain theories, annotation schemes, tagsets, etc. Bring your own tagset!