Eportfolios may enhance online learning and critical thinking. The study examined how eportfolios impact learning experiences and critical thinking development among online higher education students. Critical thinking is defined as making judgements using evidence and appropriate methods. Effective eportfolio learning can stimulate critical thinking, integrate learning, and promote reflection. Analysis of student portfolios identified five themes: eportfolios provide a personal space to experiment with ideas and evaluate learning; eportfolios allow deep thinking on course concepts; and eportfolios enhance self-regulation, an important critical thinking skill.