DefenGPT
Personal AI Assistant
Your Personal In-Browser Local AI — Free Forever, No Sign-Up Required, 100% Private & Local.
What Is DefenGPT Personal AI?
DefenGPT Personal AI is a lightweight, offline AI assistant that runs entirely in your browser. It helps you brainstorm, summarize, code, and write — securely and privately.
Unlike cloud chatbots, it processes everything locally, keeping your data on your device with no sign-up, no servers, and no tracking.
Three Core Promises
- Free Forever — no fees or subscriptions
- No Sign-Up Required — start instantly
- 100% Private — all processing stays on your device
Security-First Local AI
Zero Data Exposure
All data is processed directly on your machine using a local AI model. No cloud connections, no uploads, no leaks.
Free & No Sign-Up
Enjoy unlimited prompts with no fees, no subscriptions, and no registration required — ever.
On-Page AI Chat
Get instant answers from the page you're viewing. Summarize, generate ideas, or improve text without switching tabs.
Powerful Capabilities, Zero Complexity
One-Click Installation
No setup required — install and start chatting instantly.
Model Selection
Choose from Llama-1.2-1B, Hermes-2-3B, or Model-3-3B.
Native Browser Experience
Work directly within your browser — no external apps.
Offline Availability
No internet? No problem. Runs entirely offline.
Full Ownership of Your Data
Perfect for anyone seeking a minimalist, secure, and efficient way to use AI tools — with complete ownership of their data.
100% Local Processing
Nothing ever leaves your device.
Zero Data Exposure
No third-party access, ever.
Instant Setup
Up and running in seconds.
Always Free
No hidden costs or limits.
How It Works
Install
Add the extension to your browser.
Select Model
Pick the local AI model that fits your needs.
Start Chat
Begin chatting — fully offline and private.
From install to first conversation in under a minute — no accounts, no configuration, no cloud dependency.
Built for Real Work Tasks
Draft Emails
Compose and refine professional emails without leaving your browser.
Summarize Reports
Instantly condense long documents or web pages into key takeaways.
Generate Ideas
Brainstorm content, strategies, or solutions on demand.
Code Assistance
Write, debug, and explain code — all privately within your browser.
Frequently Asked Questions
Does it require an internet connection?
No. DefenGPT works entirely offline — your data never leaves your device.
Is it really free?
Yes — completely free with no fees, no subscriptions, and no sign-up required.
Which browsers are supported?
Currently optimized for Google Chrome and Microsoft Edge, with more browsers coming soon.
Does it store or share my data?
No. All processing happens locally — nothing is transmitted, saved externally, or analyzed by third parties.
Looking for Private AI for Your Team?
DefenGPT also delivers enterprise-grade, on-premises AI for business teams — the same commitment to privacy and security, scaled for your organization.
Explore how DefenGPT Private AI can power your entire organization without compromising data security or compliance.
Explore Private AIReady to Try DefenGPT?
Download the DefenGPT Personal AI browser extension and experience the freedom of secure, local AI — no accounts, no limits, no exposure.
Free Forever
No cost, no catch.
Instant Install
One click to get started.
100% Private
Your data stays yours.