This book constitutes the proceedings of the 24th International Conference, ICWE 2024, held in Tampere, Finland, during June 17-20, 2024. The 16 full papers and 8 short papers included in this volume were carefully reviewed and selected from 66 submissions. This volume includes all the accepted papers across various conference tracks. The ICWE 2024 theme, "Ethical and Human-Centric Web Engineering: Balancing Innovation and Responsibility," invited discussions on creating Web technologies that are not only innovative but also ethical, transparent, privacy-focused, trustworthy, and inclusive, putting human needs and well-being at the core.