Lock black outline icon
Closed padlock icon with arched shackle and a round keyhole on the body
About the Lock black outline icon
A padlock drawn in a closed state: a tall rounded shackle rises above a softly squared body, and a circular keyhole with a short vertical slot sits centered on the face. It reads instantly as security, privacy and restricted access. Common placements include login and password fields, HTTPS indicators in browser UI, secure checkout buttons, locked file or folder states and account privacy settings panels.
The body is slightly taller than wide with generous corner radii, and the shackle arc matches the body width so the silhouette stays balanced. It pairs naturally with unlock, key, shield and eye-off icons from the same set. At 16px, keep the keyhole as a simple dot so the interior does not fill in.
This is the black outline version of the lock icon: even, monoline strokes that stay crisp at small sizes and suit clean, minimal interfaces, wireframes and light backgrounds.
Get it free as an SVG vector or transparent PNG (16-512px), copy the SVG code, or restyle it in the free online editor — recolor any part, add gold, neon or gradient effects, animate it, or export EPS, PDF and DXF.
Free for personal and commercial use with attribution.
