Lock black filled icon
Outline icon of a closed padlock with a tall shackle and a keyhole
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About the Lock black filled icon
A square padlock body carries a circular keyhole with a tapered slot below it, under a tall arched shackle that is clearly shut against the case. It stands for security, restricted access and privacy, which makes it the natural mark for login and password fields, HTTPS and secure checkout indicators, privacy settings panels, locked content in a course platform and file encryption states.
The shackle is unusually tall relative to the body, giving the icon a slender upright silhouette that reads well in a form field or address bar. Corners are lightly rounded and strokes are uniform. It pairs with its open padlock, key and shield counterparts. The keyhole is small, so pair it with a label below 20 px.
This is the solid black filled version of the lock icon: a bold silhouette that reads clearly at 16-24 px and on dark or busy backgrounds, and prints well in one colour.
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.
