This study comprehensively reviews the literature associated with the implementation of wikis in an educational context, primarily concerning learning and teaching languages. The study proceeds by presenting wikis and their main theoretical background in a brief overview. After that, a discussion of the most recent empirical studies is presented, followed by an exploration of the merits and the limitations of using wikis in an educational setting. The paper concludes that wikis have a positive impact when it comes to improving learners' knowledge of various aspects of language, enhancing their autonomy, learning perceptions, and motivation to learn. As a beneficial digital tool, wikis can effectively improve students' language learning, which is achieved via critical thinking, negotiation of meaning, and collaborative learning, to name a few aspects. Having said this, limitations exist, all of which should be taken seriously by both administrators and teachers alike to maximise wikis' benefits. Yet, it is increasingly evident that, in this context, wikis' positives far outweigh their minuses. A number of practical recommendations are offered at the end of this paper to guide teachers, educators, and researchers.