SigmaOS

Name: SigmaOS
Brand: SigmaOS
Rating: 4.4 (19 reviews)

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Organize tabs like tasks, multitask with split-screen, and get AI answers

Productivity AI Assistants AI Research Browser DevTools

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4.4(19 across the web)

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Reviews onCapterra

19 reviews tracked

The Bottom Line

Entry price

Free, no paid tier

Biggest pro

Significantly improves tab management and organization with workspaces and vertical tabs.

Biggest con

Requires users to adapt to a new browsing paradigm, which may have a learning curve.

TL;DR - SigmaOS

Organizes tabs into workspaces and treats them like tasks.
Integrates AI companion, Airis, for contextual assistance and research.
Offers features like ad-blocking, focus mode, and split screen for productivity.

Pricing: Free forever

Best for: Individuals & startups

4.4/5 across review platforms

What is SigmaOS?

Editorial review

SigmaOS is a fresh take on the web browser, designed to enhance productivity and reduce digital clutter. It introduces a unique workspace-based organization system, treating tabs like tasks that can be marked as done or locked. The browser features vertical tabs for better overview, split-screen multitasking, and an integrated ad blocker for a cleaner browsing experience. Beyond organization, SigmaOS incorporates advanced AI capabilities through its companion, Airis. Airis can understand the context of the website you're on to answer questions, explain paragraphs, and even conduct internet searches to provide a starting point for research. It also offers a 'Simplify' feature to distill web pages into interactive summaries, aiming to create a more peaceful and focused internet environment. SigmaOS is ideal for users seeking a more structured, efficient, and intelligent way to interact with the web.

LCLouis CorneloupUpdated Jun 2, 2026 · how we evaluateSourcesigmaos.com ↗

Pros & Cons

Pros

Significantly improves tab management and organization with workspaces and vertical tabs.
AI companion, Airis, provides intelligent assistance directly within the browsing experience.
Enhances focus and reduces distractions with features like ad-blocking, focus mode, and simplification.
Supports multiple logins and separate profiles for efficient context switching.

Cons

Requires users to adapt to a new browsing paradigm, which may have a learning curve.
Specific advanced customization options for the AI features are not detailed.
Compatibility with all browser extensions is not explicitly mentioned.

Ratings Across the Web

4.4(19 reviews)

Capterra19 reviews

4.4/5

Ratings aggregated from independent review platforms. Learn more

Preview

Key Features

Workspaces for tab organizationVertical tabsTabs as tasks (mark as done or lock)Split screen multitaskingLazy Search (universal search bar)Airis AI companion (contextual chat, explanations, search)Simplify (interactive website summaries)Magic Theme (browser colors match website)

Pricing

Free

SigmaOS is completely free to use with no hidden costs.

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Is SigmaOS worth the price?

90/100

SigmaOS currently offers only a Free tier, which is inherently fair and generous as there are no monetary costs involved.

This makes it an excellent option for anyone looking to try out an alternative browsing experience without any financial commitment. It's best for individuals who want to explore its features before any paid options are introduced.

Hidden Costs & Gotchas

Potential future paid tiers

No current paid features to compare

How SigmaOS Compares to Competitors

As SigmaOS currently only offers a free tier, direct price comparison with competitors like Arc Browser (free) or Sidekick (free with paid tiers starting at $10/month) is limited. SigmaOS is on par with Arc in terms of cost (free), but lacks the advanced team features that Sidekick offers in its paid plans.

Reviews

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4.4/5

Across 19 verified user reviews on Capterra

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Best SigmaOS Alternatives

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SigmaOS FAQ

How does SigmaOS help manage numerous open tabs?

SigmaOS organizes tabs like tasks within workspaces, allowing users to mark them as done or lock them. It also features vertical tabs, which provide a better overview of open pages and help reduce digital clutter.

Which teams would benefit most from using SigmaOS?

SigmaOS is ideal for users and teams seeking a more structured, efficient, and intelligent way to interact with the web. Its productivity features, such as workspace-based organization and split-screen multitasking, support enhanced focus for various tasks.

How does SigmaOS compare to Brave in terms of browsing experience?

SigmaOS offers a unique workspace-based organization system and an AI companion named Airis for intelligent assistance, whereas Brave is known for its privacy-focused browsing and built-in ad blocker. Both browsers aim to provide a cleaner browsing experience, with SigmaOS focusing more on productivity and task management.

Does SigmaOS include a free tier?

Yes, SigmaOS is free to use and does not require a paid plan. This allows users to access its full range of features, including tab management, AI assistance, and distraction reduction tools, without cost.

What kind of AI capabilities does the Airis companion provide?

Airis, the AI companion in SigmaOS, can understand the context of a website to answer questions, explain paragraphs, and conduct internet searches. It also offers a 'Simplify' feature to distill web pages into interactive summaries, aiming for a more focused internet environment.

Can SigmaOS support multiple user accounts or profiles?

Yes, SigmaOS supports multiple logins and separate profiles. This feature allows users to efficiently switch between different contexts, which is beneficial for managing various work or personal accounts.

Source: sigmaos.com

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