PML-TQ is an powerful open-source search tool for all kinds of linguistically annotated treebanks with several client interfaces and two search backends (one based on a SQL database and one based on Perl and the TrEd toolkit). The tool works natively with treebanks encoded in the PML data format (conversion scripts are available for many established treebank formats). Web client is publicly available as a part of Lindat infrastructure at: https://ufal-point.mff.cuni.cz/services/pmltq/