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LexiSync

LexiSync is a next-generation localization collaboration platform designed for developers, translators, and teams. It seamlessly combines powerful desktop performance with real-time Web cloud collaboration, providing a complete solution from text extraction, AI-assisted translation, and quality assurance to multi-device synchronization.

Whether you are a solo developer quickly handling strings in code or a distributed team collaborating on complex multi-language projects, LexiSync significantly streamlines your workflow.

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📥 Download

You can download the latest versions for Windows, macOS, and Linux from the GitHub Releases page.

🚀 Core Features

☁️ Cloud Collaboration

• One-Click Hosting: Turn your local project into a server with one click. Team members can join directly via a browser (Web UI) without installing any clients.
• Real-Time Sync: Any modifications to translations, statuses (reviewed/fuzzy), and comments are broadcast to all online members in milliseconds. Supports collaborative undo/redo on the Web.
• Collaborative Awareness & Anti-Conflict: See which entries other members are editing in real-time (cursor locking). Built-in Myers diff algorithm elegantly resolves concurrent editing conflicts.
• Tunneling & Security: Natively integrates Cloudflare Tunnel to generate secure public access links without a public IP. Built-in Role-Based Access Control (RBAC), granular scope restrictions, IP banning, and persistent audit logs.

📂 Comprehensive Format Support (25+ Formats)

• Massive Format Compatibility: Natively supports over 25 industry standards, mainstream frameworks, multimedia, and office document localization files:
  • Industry Standards & Desktop UI: PO/POT, XLIFF, Qt TS
  • Mobile & Cross-Platform: Android Strings (XML), iOS/macOS (.strings, .stringsdict), Xcode String Catalog (.xcstrings), Flutter ARB
  • Data Serialization & Configs: JSON, i18next JSON, YAML, TOML, INI
  • Desktop & Backend: Java .properties, .NET RESX, PHP Array, Windows RC
  • Tables & Batch Processing: CSV, Excel (.xlsx)
  • Multimedia & Subtitles: SRT, VTT
  • Web & Rich Office Documents: HTML, Markdown/MDX, Word (.docx), PowerPoint (.pptx)
  • Custom & Special Formats: Mozilla Fluent (.ftl), OwCode(.ow)
• Native Pluralization: Supports plural rules across languages (Zero/One/Two/Few/Many/Other). AI translation and validation engines are fully adapted to plural contexts.

🤖 AI-Driven Smart Workflow

• Smart Batch Translation: Deeply analyzes all text before translation, automatically generating a style guide, extracting key terminology, and combining Translation Memory (TM) and Semantic Retrieval (RAG) to provide rich context for AI, drastically improving translation quality and consistency.
• Interactive Review Mode: A brand-new semi-automated workflow. AI pre-translates in the background, and users simply confirm, correct, or skip entries one by one in the UI, balancing efficiency with manual control.
• Automated QA: Real-time detection of missing placeholders, inconsistent punctuation, leading/trailing spaces, etc., during input; supports one-click "Auto Fix" or "AI Fix".

🖥️ Modern Interactive Interface

• Desktop: Dual-track marker bar (intuitively displays errors, warnings, search results), real-time context preview, interactive history panel.
• Web: Responsive interface built with Vue 3, supporting dark mode and a built-in real-time chat drawer.

📸 Screenshots

Desktop Main Interface

Web Real-Time Collaboration

► Click to view more screenshots

Welcome Screen & Formats

Smart Translation

AI Models Management

Plugins Management

🛠️ Development Setup

Prerequisites

• Python 3.12 or higher
• Node.js 20.x or higher (for building the Web frontend)
• Git (optional, for cloning the repository)

Steps

1. Clone the repository (or download ZIP)

   git clone https://github.com/TheSkyC/LexiSync.git
   cd LexiSync

2. Create and activate a virtual environment (Recommended)

   python -m venv venv
   # Windows
   .\venv\Scripts\activate
   # macOS/Linux
   source venv/bin/activate

3. Install Python dependencies

   pip install -r requirements.txt

4. Build the Web frontend

   cd web_src
   npm ci
   npm run build
   cd ..

5. Run the application

   python src/lexisync/main.py

🚀 Quick Start

LexiSync offers three flexible working modes to suit different scenarios:

1. ⚡ Quick Edit Mode (Single File)

Ideal for quick modifications, temporary viewing, or lightweight tasks.

• Drag and drop a single file (e.g., .po, .json, .strings) directly into the main interface.
• Translate using AI assistance and terminology hints as usual.
• Press Ctrl+S to save modifications directly.

2. 📂 Project Mode (Local Multi-file)

Ideal for large projects requiring long-term maintenance and version control across multiple files and languages.

• Click New Project (Ctrl+Shift+N) and drag in your source files in bulk.
• Double-click in the left file browser to seamlessly switch between different source files.
• Once confirmed, click File > Build Project (Ctrl+B), and the program will automatically generate the final translated files for all target languages.

3. ☁️ Cloud Collaboration Mode (Team Multi-client)

Ideal for team projects requiring simultaneous translation and review by multiple people.

• In Quick/Project mode, open the "Cloud Collaboration" panel at the bottom.
• Click "Start Cloud Service". If external access is needed, check "Enable Public URL (Tunneling)" in the settings.
• Generate exclusive access Tokens for team members in "Manage Users & Permissions".
• Members can join the real-time collaboration by visiting the generated link via their browser.

🌐 Supported UI Languages

This tool supports translating into any language, and provides localized UI interfaces for the following languages:

• English (en_US)
• 简体中文 (zh_CN)
• 日本語 (ja_JP)
• 한국어 (ko_KR)
• Français (fr_FR)
• Deutsch (de_DE)
• Русский (ru_RU)
• Español (España) (es_ES)
• Italiano (it_IT)

🤝 Contributing

Contributions of any kind are welcome! If you have any questions, feature suggestions, or find a bug, please feel free to submit them via GitHub Issues.

📄 License

This project is open-sourced under the Apache 2.0 license, allowing free use, modification, and distribution, provided the copyright notice is retained.

📞 Contact

• Author: TheSkyC
• Email: 0x4fe6@gmail.com