  We introduce SciWING, an open-source software toolkit which provides access
to pre-trained models for scientific document processing tasks, inclusive of
citation string parsing and logical structure recovery. SciWING enables
researchers to rapidly experiment with different models by swapping and
stacking different modules. It also enables them declare and run models from a
configuration file. It enables researchers to perform production-ready transfer
learning from general, pre-trained transformers (i.e., BERT, SciBERT etc), and
aids development of end-user applications. It includes ready-to-use web and
terminal-based applications and demonstrations (Available from
http://sciwing.io).
