Overtab

About

Welcome to Overtab: Your On-device AI Browsing Assistant!

Built for the 𝗚𝗼𝗼𝗴𝗹𝗲 𝗖𝗵𝗿𝗼𝗺𝗲 𝗕𝘂𝗶𝗹𝘁-𝗶𝗻 𝗔𝗜 𝗖𝗵𝗮𝗹𝗹𝗲𝗻𝗴𝗲 𝟮𝟬𝟮𝟱, Overtab transforms how you read and understand web content using Chrome’s on-device AI (Gemini Nano) - with complete privacy.

𝐖𝐇𝐀𝐓 𝐈𝐓 𝐃𝐎𝐄𝐒:

Overtab enhances your web experience with intelligent AI tools:

• Explain complex topics instantly
• Simplify technical jargon into plain English
• Translate content into 6 languages (Spanish, French, German, Italian, Japanese, Hindi)
• Proofread text and fix grammar
• Describe images using AI vision
• Chat with AI about page content
• Discover related articles and resources automatically
• Access your history anytime

𝐏𝐑𝐈𝐕𝐀𝐂𝐘-𝐅𝐈𝐑𝐒𝐓 𝐀𝐈:

PRIMARY: On-Device Processing.
All processing stays local on your device: no tracking, no analytics, no data collection. Works offline once the model is downloaded.

OPTIONAL: OpenAI Fallback.
If on-device AI isn't available, you can optionally use your own OpenAI API key. You control your data, and API keys are encrypted locally.

𝐇𝐎𝐖 𝐈𝐓 𝐖𝐎𝐑𝐊𝐒:

𝐅𝐢𝐫𝐬𝐭-𝐭𝐢𝐦𝐞 𝐒𝐞𝐭𝐮𝐩:
1. Install Overtab from Chrome Web Store
2. Enable Gemini Nano in chrome://flags, or add your OpenAI API key in settings.
3. Restart Chrome if using Gemini Nano

𝐔𝐬𝐢𝐧𝐠 𝐎𝐯𝐞𝐫𝐭𝐚𝐛:
1. Highlight text on any page.
2. Choose your action (Explain, Simplify, Translate, or Proofread)
4. Results appear instantly in the sidebar
5. Continue the conversation with AI chat for follow-up questions

Additional Features:
- Right-click any image → "Describe with Overtab" for AI-generated descriptions
- Click "Similar Links" in the sidebar to discover related resources
- Access your history anytime by clicking the Overtab extension icon
- Toggle hover tooltips on/off in settings (when enabled, hover over text for quick explanations)

𝐂𝐇𝐑𝐎𝐌𝐄 𝐁𝐔𝐈𝐋𝐓-𝐈𝐍 𝐀𝐈 𝐀𝐏𝐈s:

Overtab showcases Chrome's revolutionary Built-in AI capabilities:
- 𝐋𝐚𝐧𝐠𝐮𝐚𝐠𝐞𝐌𝐨𝐝𝐞𝐥 𝐀𝐏𝐈 - for intelligent explanations and chat
- 𝐒𝐮𝐦𝐦𝐚𝐫𝐢𝐳𝐞𝐫 𝐀𝐏𝐈 - for quick content summaries
- 𝐓𝐫𝐚𝐧𝐬𝐥𝐚𝐭𝐨𝐫 𝐀𝐏𝐈 - for fast on-device translation (28x faster)
- 𝐑𝐞𝐰𝐫𝐢𝐭𝐞𝐫 𝐀𝐏𝐈 - for text simplification
- 𝐏𝐫𝐨𝐨𝐟𝐫𝐞𝐚𝐝𝐞𝐫 𝐀𝐏𝐈 - for grammar checking

This demonstrates the power of on-device AI for privacy-preserving, fast, and intelligent web experiences.

𝐏𝐄𝐑𝐅𝐄𝐂𝐓 𝐅𝐎𝐑:

Students · Researchers · Professionals · Non-native speakers · Anyone who reads a lot online

𝐑𝐄𝐐𝐔𝐈𝐑𝐄𝐌𝐄𝐍𝐓𝐒:

𝐅𝐨𝐫 𝐎𝐧-𝐃𝐞𝐯𝐢𝐜𝐞 𝐀𝐈 (𝐑𝐞𝐜𝐨𝐦𝐦𝐞𝐧𝐝𝐞𝐝):
- Chrome 129 or newer
- Enable "Prompt API for Gemini Nano" in chrome://flags
- Works completely offline after model download

𝐅𝐨𝐫 𝐎𝐩𝐞𝐧𝐀𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 (𝐎𝐩𝐭𝐢𝐨𝐧𝐚𝐥):
- Any Chrome version
- Your own OpenAI API key
- Internet connection required

𝐊𝐄𝐘 𝐅𝐄𝐀𝐓𝐔𝐑𝐄𝐒

✓ 100% on-device AI with Gemini Nano
✓ Optional OpenAI API integration
✓ Explanations, summaries, translations
✓ Image descriptions & resource discovery
✓ Smart hover tooltips & history
✓ Privacy-first design · No data collection
✓ Open source & transparent

𝐎𝐏𝐄𝐍 𝐒𝐎𝐔𝐑𝐂𝐄:

Overtab is 100% open source. Review our code, contribute, or report issues:
Github: https://github.com/riyanshibohra/Overtab

𝐏𝐑𝐈𝐕𝐀𝐂𝐘 & 𝐒𝐔𝐏𝐏𝐎𝐑𝐓: 

Privacy Policy: https://github.com/riyanshibohra/Overtab/blob/main/PRIVACY.md
Support: https://github.com/riyanshibohra/Overtab/issues
Email: [email protected]

Experience the future of web reading with AI that respects your privacy!