SigmaOS
SigmaOS is a macOS web browser built around workspaces, keyboard navigation, and organized pages for people who do much of their work on the web.
What is SigmaOS?
SigmaOS is a native macOS web browser designed to help people organize online work with workspaces, page management, and keyboard-driven navigation. Instead of a traditional tab strip, it groups browsing activity into named workspaces that can be arranged by project, task, or topic. The app includes a command-style search interface for opening pages, navigating between open items, changing settings, and creating documents in connected web tools. SigmaOS also supports split-screen browsing, private workspaces, separate cookies per workspace for multiple account logins, and browser migration from other major browsers. For people who spend a large part of their day in web apps, research, documents, and online collaboration tools, it offers a more structured way to manage many pages at once on Mac.
Key features
- Organize browsing into separate workspaces for projects, tasks, or topics
- Search the web, jump to open pages, and run browser commands from a keyboard-driven launcher
- Use separate cookies per workspace to stay signed in to multiple accounts at the same time
- Open two pages side by side with split-screen browsing
- Install supported browser extensions, including many from the Chrome Web Store
- Mark pages as done, lock important pages, and group related subpages
- Import tabs, history, bookmarks, cookies, and supported extensions from other browsers
Review app leftovers with diCleaner
Inspect caches, support files, containers, and login items before cleaning.
Safety overview
Status: Mostly safe
SigmaOS is a legitimate browser for macOS. It can access web content, saved browsing data, cookies, downloads, and passwords you choose to use through normal browser features, which is expected for this kind of app. If you import data from another browser or enable multiple-account workflows, remember that your browsing sessions and site logins may be carried over into SigmaOS. Keep it only if you use it, and review any imported passwords, cookies, or extensions the same way you would in any browser.
Recommendation: Keep SigmaOS if you use it for daily browsing, research, or web-app work on your Mac. If you no longer use it, you can remove it like other apps, but expect to lose its local browser data, saved sessions, and workspace setup unless you have exported or synced what you need.
Common paths
/Applications/SigmaOS.app
Cache paths
~/Library/Caches/com.sigmaos.sigmaos.macos
Preference paths
~/Library/Preferences/com.sigmaos.sigmaos.macos.plist
Container paths
~/Library/Containers/com.sigmaos.sigmaos.macos
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