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Dual Day / Night profiles
Two completely isolated browsing identities in the same window: separate history, cookies and sessions.
A Day profile and a Night profile, fully isolated. Ad blocking, anti-fingerprinting and a panic button that wipes everything from view in an instant.
Free · No trackers · Made in Spain
Tap the sun/moon in the toolbar to switch profiles ↑
Every detail is designed around your privacy, without giving up elegance.
Two completely isolated browsing identities in the same window: separate history, cookies and sessions.
One tap —or a global shortcut— and you jump straight to Day, with a preloaded decoy tab and all audio muted.
No blank screens or telltale loading: when you leave Night, an innocent tab is already there, as if you had been checking the weather for a while.
In Night mode, videos and audio always start silent. You decide when to turn the volume up.
Ad and tracker blocking plus fingerprinting protection, enabled out of the box.
Every tab is an independent process. One site can't spy on what you do in another.
When you enter Night mode, the Noctys moon turns red in a brief, elegant animation before revealing the interface. A darker palette, a crimson accent and an age gate remembered per profile.
Try it: press the button and watch the screen jump to an innocent tab.
Private content from the Night profile
Sunny · Light breeze · 40% humidity
You're in the Night profile. Press Panic.
Noctys blocks ads and trackers in every session and disguises your digital fingerprint so sites can't recognize you. Everything stays local — no accounts, no cloud.
Free for Windows 10 and 11. No sign-ups, no strings attached.
Noctys is in active development: try it and tell us what you think — every suggestion and bug report helps shape it.
v0.2 · ~100 MB · 64-bit NSIS installer
Your download is already on its way. When you open the installer, Windows (SmartScreen) may flag it as an "unrecognized app": the installer isn't digitally signed yet because a signing certificate is an expense that's hard to justify for a free project. Don't worry — it isn't an error or a threat.
If it appears, click "More info" and then "Run anyway".