
Sigma Browser
AI Agent & AI Browser
About Sigma Browser
Best for: privacy-conscious users, power users, web researchers, blockchain enthusiasts
Key features
- Includes an AI agent that can automate web tasks such as navigation and form filling.
- Runs a local AI model for private, offline processing of data and prompts.
- Built-in ad blocker for a cleaner browsing experience.
- Blockchain-based mnemonic profile for secure, portable identity and backup.
- Allows users to chat with web pages for instant summaries and content exploration.
- Supports browser extensions for added functionality.
- End-to-end encryption for user data and AI chat conversations.
- Web3 integration for decentralized app access and wallet management.
Use cases
- Automating repetitive online tasks such as booking tickets or filling forms.
- Conducting deep research with source clustering and structured insights.
- Chatting with web pages to summarize or extract information.
- Translating highlighted text directly on web pages.
- Managing multiple browsing profiles for work and personal use with encryption.
Pros
- Offers a free plan with basic AI features.
- Local AI processing enhances privacy by keeping data on the device.
- Open-source code for transparency and security review.
Limitations
- Free plan has limited access to AI Agent and other advanced features.
- Android version is not yet available but is in development.
Screenshots

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