The latest articles on DEV Community by DarkDev (@darkdevs). https://dev.to/darkdevs https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4008028%2F3afcb870-0e59-4154-8c0c-2967b2fa6cd6.jpg https://dev.to/darkdevs en DarkDev Mon, 29 Jun 2026 11:31:32 +0000 https://dev.to/darkdevs/deepmanga-open-source-manga-translation-tool-with-paddleocr-gemini-ai-477g https://dev.to/darkdevs/deepmanga-open-source-manga-translation-tool-with-paddleocr-gemini-ai-477g <p>I open-sourced a manga/manhwa translation tool that automates the entire localization pipeline while preserving the original visual layout.</p> <h2> Tech Stack </h2> <ul> <li> <strong>Python</strong> + Flask + Flask-SocketIO</li> <li> <strong>PaddleOCR</strong> / RapidOCR for text detection</li> <li> <strong>Google Gemini AI</strong> + Cerebras API for translation</li> <li> <strong>OpenCV</strong> for smart text cleaning (inpainting)</li> <li> <strong>CustomTkinter</strong> Desktop GUI</li> </ul> <h2> Key Features </h2> <ul> <li> <strong>Advanced OCR</strong>: PaddleOCR and RapidOCR for accurate text detection in manga/manhwa panels</li> <li> <strong>AI Translation</strong>: Google Gemini + Cerebras API support with intelligent context-aware translation</li> <li> <strong>Dual Interface</strong>: Modern Web UI (Flask + Socket.IO) and Desktop GUI (CustomTkinter)</li> <li> <strong>Smart Text Cleaning</strong>: OpenCV inpainting for clean bubble erasure without damaging artwork</li> <li> <strong>Custom Glossary</strong>: Define your own translation term mappings for consistent terminology</li> <li> <strong>Webtoon Viewer</strong>: Auto-generates a clean reader site with one-command Netlify deployment</li> <li> <strong>Multi-API Key Rotation</strong>: Automatically rotates through multiple API keys to bypass rate limits</li> <li> <strong>Notifications</strong>: Discord webhook and Telegram bot integration</li> </ul> <h2> How It Works </h2> <ol> <li>Upload manga pages (supports standard manga and webtoon formats)</li> <li>PaddleOCR detects and extracts text regions</li> <li>Text is sent to Gemini AI for context-aware translation</li> <li>Original text is cleaned using OpenCV inpainting</li> <li>Translated text is placed back preserving the original layout</li> <li>Output can be viewed in the built-in webtoon reader</li> </ol> <h2> GitHub </h2> <p><a href="https://github.com/a2ngell/DeepManga" rel="noopener noreferrer">https://github.com/a2ngell/DeepManga</a></p> <p>The project is fully open source under MIT license. Contributions, bug reports, and feature requests are welcome!</p> <p><em>Built with Python, PaddleOCR, and Google Gemini AI.</em></p> ai opensource python showdev