BallonsTranslator is a computer-aided comic translation tool that uses deep learning models to detect text regions in manga/comics, perform OCR recognition, remove original text through inpainting, and translate content using machine translation. It provides a PyQt-based UI for one-click translation workflow where the system estimates original text layout including color, contour, angle, direction and alignment, then fills in translated text accordingly. The tool supports both Japanese and American comics with specialized pipelines for English-Chinese and Japanese-English translation.