Sigma Private AI Browser
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Introduction
Sigma is a free private AI browser with built-in AI agent, local AI, and ad blocker.
Listed on
July 22, 2026
What is Sigma Private AI Browser?
Sigma is a private AI browser that combines an AI agent, deep research, and AI tools to help users navigate, create, and automate on the web. It runs Eclipse, a local LLM built directly into the browser, ensuring data stays on the device with no cloud processing. The browser is built on Chromium and includes features like an ad blocker, Web3 integration, and end-to-end encryption.
How to use Sigma Private AI Browser?
- Download Sigma for macOS, Windows, or iOS from the App Store or Google Play. Once installed, users can use the AI agent to perform tasks by describing goals, use AI Chat for questions and research, highlight text for quick translation, and manage extensions and profiles like in any modern browser. The browser also supports connecting to decentralized apps and managing wallets directly.
Core features of Sigma Private AI Browser
- Built-in AI agent that can take actions on behalf of the user
- AI Chat with deep research, image generation, and text writing
- Eclipse local LLM for offline AI processing
- Built-in ad blocker for cleaner browsing
- Chat with page to summarize and interact with any website
- Quick Translate for instant text translation
- Web3 integration for decentralized apps and wallet management
- Private profiles with blockchain-based mnemonic identity
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