Browser Freemium
Sigma Browser
Desktop App 4.3/5 macOSWindowsiOSAndroid
What is Sigma Browser?
Free private AI browser with built-in AI agent, local LLM, ad block, and Web3 integration. Fast, light, and privacy-first.
Sigma is a free private AI browser that is impressively light, packed with features, and fast by design. It includes an AI agent, AI Assistant, Private AI capabilities, built-in ad block, quick translate, chat with page, private profiles, and Web3 integration. Powered by Chromium, it offers end-to-end encryption, open-source code, and GDPR/CCPA compliance.
Key Features
AI agent
AI chat
Local LLM (Eclipse)
Built-in ad block
Chat with page
Quick translate
Extensions support
Private profiles
Mnemonic profile
End-to-end encryption
Open-source
Phishing detection
GDPR/CCPA compliant
Web3 integration
TLS 1.3, HTTPS, DNS-over-HTTPS
Use Cases
Marketing professionals use Sigma's AI agent to automatically fill out forms and navigate pages, saving hours of manual data entry each week.
Researchers leverage the AI chat to ask questions and run deep research on any topic, getting comprehensive answers and insights without switching tabs.
Privacy-conscious users rely on the local LLM (Eclipse) to summarize pages and write content offline, ensuring sensitive data never leaves their device.
Travelers use the quick translate feature to highlight and translate foreign text on websites, making international browsing seamless.
Developers manage multiple projects by creating separate private profiles for work and personal browsing, each encrypted with a 12-word phrase.
Web3 enthusiasts connect to decentralized apps and manage wallets directly in the browser, streamlining blockchain interactions.
Students chat with any webpage to get instant summaries and explanations, accelerating research and comprehension.
AI browserprivate browserAI agentlocal LLMad blockerWeb3privacyChromiumfast browserlightweight browser
Alternatives
Opens in a new tab on Sigma Browser website.
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