Choose the right privacy level
Each level is a curated blend of blur, opacity, and tint. Pick by how recognizable you want the underlying content to be.
The four levels
Subtle
A soft veil. Content is still readable but slightly out of focus. Use when you want to hint that something is private without fully hiding it — for example, drawing attention to a feature without exposing it.
Private
Most details are obscured. You can still tell rough shapes and motion, but specific text and numbers are unreadable. The most common choice for screen recordings — readers can see something is there without being able to read it.
Secure
Heavy blur. Even with effort, viewers can't tell what's underneath. Use when the content is genuinely sensitive — API keys, customer data, medical or financial information.
Opaque
A near-solid block. The content is fully concealed; only the overlay's shape is visible. Use when you want viewers to know something is being deliberately hidden.
Switch a BlurBox's privacy level
- Right-click the overlay
- Hover over “Privacy Level”A submenu opens with the four levels.
- Pick a levelThe change is instant.
Custom mode
Want fine-grained control? Open Preferences (⌘ ,) and switch the privacy level to Custom. You'll get sliders for:
- Blur strength — how out-of-focus the content is.
- Opacity — how much of the colored tint sits on top of the blur.
- Glass tint — warm vs cool tone.