This article considers the role that mentoring, and in particular online mentoring, can play in tackling the decline in modern language learning at GCSE level in Wales. • It evaluates Digi-Languages, a blended learning experience that pairs university student linguists with secondary school learners of languages to improve MFL uptake at GCSE. • This article examines the conception, design and early outcomes of DigiLanguages. • The article evaluates the experiential learning of the mentees (Year 9 learners) and explores the ethos underpinning resource development and the project’s key messaging around culture and languages. • The article provides recommendations for the expansion of Digi-Languages to support broader language policy objectives in Wales, including the Welsh Government’s policy of one million Welsh speakers by 2050. • The article concludes with suggestions for the extension of Digi-Languages to other regions of the UK and overseas and its potential as a model for stimulating inter-cultural conversations on the lifelong value of languages.