EPUB Simplified-Traditional Chinese Converter

English | 繁體中文 | 简体中文

Online Tool: https://happk.github.io/epub-s2t-converter-web/

A browser-based tool for converting EPUB files and subtitle files (SRT, ASS, SSA, VTT, LRC, TXT) between Simplified and Traditional Chinese. All processing runs locally in your browser — no files are uploaded.

You can also use the online version directly: https://happk.github.io/epub-s2t-converter-web/

Important: Opening index.html directly via file:// protocol may cause certain features (e.g., drag-and-drop upload) to malfunction due to browser security restrictions. Please use a local HTTP server instead.

Double-click start-webui.bat (or start-webui-en.bat for English console output). The script will auto-detect Python and start a local server at http://127.0.0.1:8000.

# Python
python -m http.server 8000

# Node.js (npx)
npx serve .

Then open http://127.0.0.1:8000 in your browser.

This project uses the following open-source libraries:

• JSZip — A JavaScript library for creating, reading, and editing .zip files. Copyright © 2009–2024 Stuart Knightley, David Duponchel, Franz Buchinger, António Afonso. MIT License.

• opencc-js — Pure JavaScript OpenCC (Open Chinese Convert) library for Chinese character conversion. Copyright © The nk2028 Project. MIT License.

• jschardet — Character encoding auto-detection for JavaScript. Copyright © 2016 António Afonso. LGPL-2.1+ License.

This project is released under the MIT License.