NeuroNLP++ is a query interface for navigating fruit fly brain datasets. In response to free-form English queries, NeuroNLP++ links the Hemibrain dataset with the worldwide fruit fly brain literature. The linking enables the exploration of the Hemibrain dataset using cell type and general descriptors of function. It further enables in-depth investigations of the connectomic/synaptomic structure of the fly brain, using intuitive rule-based English queries. The NeuroNLP++ query interface enables searching and locating cell types, neurons and synaptic partners with a variety of attributes of query targets (refer to the Search Bar section below). Relevant Publications For rule-based English queries: see Nikul H. Ukani et al., The Fruit Fly Brain Observatory: From Structure to Function, bioRxiv 2019, 580290, March 2019. For free-form English queries: see Aurel A. Lazar, et al., A Programmable Ontology Encompassing the Functional Logic of the Drosophila Brain, Frontiers in Neuroinformatics, June 2022. NeuroNLP++ can be accessed from any browser supporting WebGL. Try it on your smartphone/tablet!