Cortex
$ cortex switch development
Switch contexts,
not windows.
Ten dev tabs one second, movie mode the next — and work stops eating your RAM. Cortex is the browser built around the modes of your life: work, code, game and unwind, each in its own context with its own tabs, tools and rules.
Real test, not a lab number: 50 tabs migrated straight from Chrome — 3GB became ~400MB.
One browser. Every mode.
1 · Create contexts
Development, Gaming, Entertainment — or one per project. Client work, a side-project, an idea you're chasing: contexts are yours to define, beyond the four built-ins.
2 · Fill them
Tabs plus the software you use there: Google Docs and Office in Productivity, VS Code Web and GitHub in Development. Launch tools right inside the browser.
3 · Switch instantly
One click or Ctrl+1–4. Everything you left suspends to near-zero memory — and comes back exactly where it was.
More than tab management
Contexts & instant suspension
Each context keeps its own tabs, tools and rules — and frees memory the moment you leave it.
Your software, built in
Launch the tools you actually use — Google Docs, Office, VS Code Web, GitHub — right inside the context that needs them.
AI assistant
100% opt-in — bring your own model, or run local
Encrypted passwords & autofill
An OS-keychain-backed vault with click-to-fill — never silent autofill.
Per-context ad-block & tracking protection
Standard or Strict blocking, set independently for every context.
Live resource stats
CPU, memory and network, right in the status bar
Your data is not the product.
No selling data. No ads business. Local-first by design — and everything optional is opt-in: sync, AI, even usage insights. One beta-only exception: anonymous crash-and-performance telemetry is on by default until full release, with a total off switch in Settings → Privacy. See exactly what we collect →
100% Local
No account. Nothing leaves your machine.
Cortex account
Encrypted sync of bookmarks, contexts and settings.
Sign in with UnityFreak
One login across the whole ecosystem.
Built in the open on UnityFreak
Cortex is planned, tracked and shipped with UnityFreak — the developer ecosystem platform. Follow development as it happens, or use one UnityFreak login across everything.
Follow on UnityFreak →Be first in line.
Cortex Browser launches Q4 2026 — free for Windows, macOS & Linux.