This study aims to analyze the effect of using the Quizizz application on the cognitive learning outcomes of third-grade Indonesian language students at SDN 31 Pekanbaru. The method used is a quantitative approach with a one-group pretest-posttest design. The study participants consisted of 38 students who were selected. The pretest results showed an average student score of 54.21, while after the implementation of Quizizz, the average posttest score increased to 80.47, with a significant difference of 26.263 points (p < 0.05). ANOVA analysis showed that although there was an improvement in learning outcomes, the difference between the group using Quizizz and the other groups was not statistically significant. The Wilcoxon test indicated that the use of Quizizz had a positive effect on students' cognitive learning outcomes. This study recommends further integration of educational technology into learning to improve the quality of education at SDN 31 Pekanbaru. The limitations of this study include focusing only on cognitive aspects and not considering external factors that may influence learning outcomes. Further research is recommended to explore other variables that may influence student learning outcomes.