The Transcription Portal is a web-based service for multilingual orthographic transcription of speech, notably Oral History interviews. It is targeted at non-technical users: it provides a simple and intuitive GUI, supports several languages, and the workflow is pre-configured. Currently, the workflow consists of three steps: 1) automatic speech recognition, 2) manual correction of the transcript, 3) data export. Summarization and translation are planned. We demonstrate the portal on a set of historical Italian interviews on the Ravensbrück concentration camps.