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

• 🔒 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

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.)

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

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

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)

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)

Click Advanced Settings to configure:

├── 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

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

Enable the "Enable debug logging" checkbox in the extension's Options page (Output Settings section), then click Save.

To view the logs, go to about:debugging#/runtime/this-firefox, find Local LLM Translator and click Inspect — debug messages with [Background] prefix will appear in the Console tab.

Alternatively, you can toggle debug directly from the Inspect console:

// Enable
browser.storage.local.get('settings').then(r => {
  const s = { ...r.settings, debug: true };
  browser.storage.local.set({ settings: s }).then(() => console.log('Debug enabled'));
});

// Disable
browser.storage.local.get('settings').then(r => {
  const s = { ...r.settings, debug: false };
  browser.storage.local.set({ settings: s }).then(() => console.log('Debug disabled'));
});

MIT