The strengthening of the European migration policies, the increase of hate speech from ultra-conservative social groups, and the partial victory of the extreme right in the recent elections generate a scenario of constant threats to the human rights of immigrant people. In this context, this study supports the hypothesis that popular education inspired by the theoretical-practical work of Paulo Freire is a powerful tool in the promotion of an antiracist and decolonial education in the associative and community spheres. Through an in-depth interview with a popular educator and the participant observation applied in a community workshop, this study aims to exemplify the connections between Freire's pedagogy and the political struggles for an antiracist education in the Spanish context. The results obtained demonstrate that the application of Freirean pedagogical fundamentals has a substantial transformative potential on the migratory field.