LOGOS SIGMA

The LOGOS SIGMA browser
fast, private, smart

Page ranking with LOGOS-PR PageRank, accelerated ternary search, built-in ad & tracker blocking — running entirely on your machine.

Download for Windows
Version 1.0.0 · Windows 10/11 (64-bit) & Linux x86-64 · Free
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Windows

Portable (.zip), Win 10/11 64-bit. Giải nén trước, rồi chạy LogosBrowser.exe. Nếu SmartScreen cảnh báo: More info → Run anyway. Cần WebView2 Runtime (có sẵn trên Win 10/11).
Download for Windows
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macOS

Must be built on a Mac / macOS CI (Apple requires code signing).
Coming soon
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Linux

x86-64 (.tar.gz) — Qt WebEngine. Giải nén rồi chạy ./run-shell.sh (lần đầu tự cài thư viện + PySide6, cần sudo). Cần Python 3.
Download for Linux

Why choose LOGOS SIGMA?

Everything you expect from a modern browser, plus our own benchmarked technologies.

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LOGOS-PR PageRank

Ranks pages with the Brin–Page algorithm running in the background over your browsing history, surfacing popular sites and ranking address-bar suggestions.

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Ternary search

Address-bar suggestions powered by a ternary search trie + a PageRank-based top-K cache.

Measured in-browser: 296× faster than a linear scan
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Ad & tracker blocking

Dozens of common ad and tracker networks blocked out of the box — lighter, cleaner browsing.

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SIGMA-MR (experimental)

A built-in 261-bit hash that shows URL/DNS fingerprints in real time — an educational/experimental feature.

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Full-featured & familiar

Multiple tabs, bookmarks, history, downloads, dark mode, keyboard shortcuts, right-click menu, DevTools.

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Cross-platform

A single codebase for Windows, macOS and Linux, built on the stable Chromium engine.

Transparency note: SIGMA-MR SHA-261 is a self-designed hash that has not undergone public cryptographic review; treat it as an experimental/educational feature, not a replacement for proven standards. For real-world security (TLS, cookies, etc.), the browser still relies on Chromium's standards (TLS 1.3, AES-GCM).