Keyhole black outline icon
Outline keyhole icon with a round top opening and flared slot narrowing from a flat base
About the Keyhole black outline icon
A single keyhole is drawn in the traditional old-lock shape: a large circular opening at the top flowing into a tapered slot whose sides splay outward to a flat bottom edge. It stands for security, restricted access, privacy and unlocking. Good for login and password screens, encryption and VPN product pages, privacy policy sections, hotel or real-estate apps, and escape-room or mystery branding.
The form is a single continuous outline with the circle occupying the top half and the trapezoid slot the bottom, giving a strong vertical silhouette that stays readable at tiny sizes. Pair it with padlock, key and shield icons for a consistent security set. It also works well reversed out of a solid colored button.
This is the black outline version of the keyhole icon: even, monoline strokes that stay crisp at small sizes and suit clean, minimal interfaces, wireframes and light backgrounds.
Download it free as a scalable SVG vector or transparent-background PNG in seven sizes (16 to 512px), copy the SVG code straight into your project, or open it in the free online editor to change colors, apply gold, silver, neon and gradient styles, animate it, or convert it to EPS, PDF and DXF.
Free for personal and commercial use with attribution.
