Local LLM Translator

A privacy-focused browser extension that translates web pages using local LLMs (Ollama or LMStudio). Your data never leaves your machine.

Features

• 🔒 100% Private - All translations happen on your local machine via Ollama or LMStudio
• 🎯 Smart Prioritization - Visible content and headings are translated first
• 🌍 Many Languages - Supports many many languages :3

Requirements

You need one of these running locally:

• Ollama (default: http://localhost:11434)
• LMStudio (default: http://localhost:1234)

With a translation-capable model loaded (e.g. TranslateGemma, tencent.hunyuan-mt, qwen3, etc.)

Installation

Firefox / Mullvad Browser

1. Go to about:debugging#/runtime/this-firefox
2. Click Load Temporary Add-on
3. Select the manifest.json file

Chrome / Chromium

1. Go to chrome://extensions
2. Enable Developer mode
3. Click Load unpacked
4. Select the extension folder

Coming Soon: Extension in Chrome Web Store and Firefox Add-ons

Preview

Usage

1. Click the extension icon
2. Select a model from the dropdown
3. Choose your target language
4. Click Translate Page

The extension will:

• Extract all visible text from the page
• Prioritize headings and visible content
• Translate in batches with progress percentage
• Auto-translate new content (infinite scroll)

Privacy

This extension is designed to be privacy-focused:

• ✅ Only connects to localhost - no external network requests
• ✅ No analytics or tracking
• ✅ No data collection
• ✅ Minimal permissions (only localhost host permissions)

Settings

Click Advanced Settings to configure:

Setting	Description
Provider	Auto-detect, Ollama only, or LMStudio only
URLs	Custom endpoints for Ollama/LMStudio
Max tokens/items per batch	Control batch sizes
Temperature	Model creativity (lower = more consistent)
Request Format (work in progress)	Default JSON, Hunyuan-MT, Simple, or Custom
Show Glow	Toggle visual indicator on translated text

File Structure

├── manifest.json      # Extension manifest (MV3)
├── background.js      # Background script (LLM API, settings)
├── content.js         # Content script (DOM manipulation)
├── popup/
│   ├── popup.html     # Popup UI
│   ├── popup.css      # Styles (Everforest Dark theme)
│   └── popup.js       # Popup logic
└── icons/             # Extension icons

Development

The codebase is intentionally simple with no build step or dependencies:

• Pure vanilla JavaScript
• No external libraries
• No bundler required
• Works directly in the browser

License

MIT