KiDKo is a multi-modal digital corpus of spontaneous discourse data from informal, oral peer group situations in multi- and monoethnic speech communities. KiDKo contains audio data from self-recordings, with aligned transcriptions (i.e., at every point in a transcript, one can access the corresponding area in the audio file). KiDKo offers a new empirical resource for research in domains such as: Kiezdeutsch as a multiethnic dialect of German; youth language in urban areas; linguistic developments in contemporary German; informal language use. KiDKo consists of two parts: the main corpus with spontaneous conversations between young people from a multiethnic community (Berlin-Kreuzberg); a complementary corpus with spontaneous conversations between young people from a monoethnic community with comparable socio-economic indicators (Berlin-Hellersdorf). KiDKo has been developed by project B6 (PI: Heike Wiese) of the collaborative research centre Information Structure (SFB 632) at the University of Potsdam since 2008. Website in German and English. Corpus access online via ANNIS (open source platform). © by kiezdeutschkorpus.de