A Smarter Alternative to Sigma Browser
Sigma is a private, lightweight AI browser. Tabbit is an AI-native browser built to run multi-step web tasks, research, and automations while you keep working.
Choose Sigma if you want offline, privacy-first browsing. Choose Tabbit if you want a browser that actually does work for you.
Opens tabbitbrowser.com or tabbit-ai.com based on your language.
Which browser fits your workflow?
Privacy-first lightweight browsing
You want a minimal browser with local AI, ad blocking, and strong privacy defaults.
Automate complex web tasks
You need a browser that can research, fill forms, move data across sites, and run workflows end-to-end.
Skills, workspaces & top AI models
You want reusable AI skills, smart workspaces, and free access to leading models in one place.
Sigma Browser vs Tabbit at a glance
Both browsers bring AI into the browser, but they solve different problems. Here is how they compare.
What Sigma Browser does best
Sigma Browser positions itself as a private, lightweight AI browser. It runs on Chromium, keeps sensitive data local, and offers a clean browsing experience with built-in ad blocking.
- Strong privacy stance with local AI processing
- Built-in ad blocker and DNS-over-HTTPS
- Chat with any page and quick translate
- Mnemonic profile with Web3-style recovery
- Available on desktop and mobile
What Tabbit does best
Tabbit is an AI-native browser built by the GN06 team. It keeps the familiar Chromium experience but adds an Agent mode that can open its own tab groups and execute complex workflows from natural language.
- Agent Mode runs multi-step tasks while you keep working
- Omnibox with @ mentions — tabs, screenshots, and files become context
- Skills marketplace for reusable prompts and scripts
- Vertical tabs, smart workspaces, and knowledge-base bookmarks
- Free access to top-tier AI models during public beta
Where Tabbit pulls ahead
Agent Mode that controls the browser
Describe a goal in plain English and Tabbit opens its own tab group to research, fill forms, and deliver results.
Omnibox with @ mentions
Reference any open tab, screenshot, bookmark, or local file as context for your AI task — no copy-paste needed.
Skills marketplace
Save and share reusable prompts and scripts, or discover community Skills in the marketplace.
Vertical tabs + smart workspaces
Keep projects organized with AI-grouped tabs, workspaces, and a knowledge-base that survives dead links.
Which browser wins each scenario?
Deep research report
You need to scan dozens of sources and compile a structured summary with citations.
TabbitCross-system data entry
Move information between internal tools, fill forms, and update records automatically.
TabbitContent creation workflow
Research, draft, translate, and publish content without switching apps.
TabbitPrivate daily browsing
You mainly read news and want a lightweight, ad-free, privacy-focused experience.
SigmaSigma Browser vs Tabbit: common questions
Is Tabbit a Sigma Browser alternative?
Yes. Both are Chromium-based AI browsers, but Tabbit focuses on agentic execution and productivity automation, while Sigma focuses on privacy and lightweight local AI.
Can I download Tabbit for free?
Tabbit is free during its public beta. You can download it for macOS and Windows from the official site.
Does Tabbit run AI locally like Sigma?
Tabbit connects to leading cloud models including Gemini, GPT, Claude, DeepSeek, GLM, Kimi, Qwen, Doubao, and LongCat. This gives you stronger reasoning and execution than most on-device setups.
Which browser is better for automation?
Tabbit is built for automation. Its Agent Mode can navigate pages, fill forms, extract data, and run multi-step workflows in parallel tab groups.
Is Sigma Browser available on mobile?
Yes, Sigma offers iOS and Android apps. Tabbit currently focuses on macOS and Windows desktop, where complex agentic workflows are most productive.
Can I import my Sigma or Chrome data into Tabbit?
Tabbit supports one-click import of bookmarks, passwords, history, cookies, and extensions from Chrome, Edge, and Safari.
What are Tabbit Skills?
Skills are reusable prompts and scripts. You can create your own, share them, or discover community Skills in the marketplace.
Is Tabbit safe to use?
Tabbit uses secure connections and follows standard product privacy practices. For sensitive work, review the privacy policy on the official site.
Ready to try the agentic browser?
Download Tabbit today and let your browser handle the repetitive work while you focus on what matters.