Korp
Korp is Språkbankens Corpora search web interface. See their official site for general info.
Korp consists of a backend web api, written in Python, and a frontend, using the Angular framework. The backend provides a web api on top of a tool called Corpus Workbench (CWB), which is the tool that stores the corpus data, and provides the search routines in the data.
We host our own instances of Korp. For general documentation on how we setup korp, see our Korp repo, at github.com/giellatekno/korp.