Abstract: Over the last years, amateur artists have been using the new Internet technologies to easily produce, share and distribute their comics. However, web applications for this kind of creation are still restricting users by adopting simple and very limiting interaction methods. Therefore, these systems do not allow the creation of visually rich comics and do not support some of the inherent needs of comics, such as the repetition of previous elements. In this paper, we propose a solution for creating comics online which builds upon the traditional principles of creating paper comics. Our approach combines a sketch-based interaction to draw comics with rich edition possibilities, computer assisted drawing techniques and a calligraphic retrieval mechanism for reusing previous elements. Experimental evaluation showed that this approach is better suited for these problems than existent applications, and that users can create more appealing and richer comics with higher flexibility and efficiency.