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Best Open Source translate Libraries

A curated list of the most popular GitHub repositories tagged with translate. Select any project to visualize its architecture and dive into the codebase using RepoMind's AI engine.

#1PDFMathTranslate/PDFMathTranslate

[EMNLP 2025 Demo] PDF scientific paper translation with preserved formats - 基于 AI 完整保留排版的 PDF 文档全文双语翻译，支持 Google/DeepL/Ollama/OpenAI 等服务，提供 CLI/GUI/MCP/Docker/Zotero

31,844Python
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#2CopyTranslator/CopyTranslator

🔠Foreign language reading and translation assistant based on copy and translate.

17,533TypeScript
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#3LibreTranslate/LibreTranslate

Free and Open Source Machine Translation API. Self-hosted, offline capable and easy to setup.

13,812Python
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#4WEIFENG2333/VideoCaptioner

🎬 卡卡字幕助手 | VideoCaptioner - 基于 LLM 的智能字幕助手 - 视频字幕生成、断句、校正、字幕翻译全流程处理！- A powered tool for easy and efficient video subtitling.

13,288Python
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#5tisfeng/Easydict

一个简洁优雅的词典翻译 macOS App。开箱即用，支持离线 OCR 识别，支持有道词典，🍎 苹果系统词典，🍎 苹果系统翻译，OpenAI，Gemini，DeepL，Google，Bing，腾讯，百度，阿里，小牛，彩云和火山翻译。A concise and elegant Dictionary and Translator macOS App for looking up words and translating text.

12,278Swift
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#6ripperhe/Bob

Bob 是一款 macOS 平台的翻译和 OCR 软件。

9,549
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#7fishjar/kiss-translator

A simple, open source bilingual translation extension & Greasemonkey script (一个简约、开源的 双语对照翻译扩展 & 油猴脚本)

8,826JavaScript
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