No Lock Sign black filled icon
Padlock inside a circle with a diagonal bar, meaning locking is not allowed
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About the No Lock Sign black filled icon
A square-bodied padlock with a rounded shackle and a small keyhole sits inside a circle crossed by a diagonal bar. The pairing reads as locking not permitted or access left open, so it works on emergency exit and fire door notices, storage and gym locker rules, unlocked or unsecured status states in an app, and slides about open data or removed restrictions.
The padlock is centered and squared off, giving the diagonal stroke a clean run across the body without hiding the keyhole. Use it opposite a plain padlock icon to contrast locked and unlocked states, and give it at least 24 px so the shackle stays distinct from the ring.
This is the solid black filled version of the no lock sign icon: a bold silhouette that reads clearly at 16-24 px and on dark or busy backgrounds, and prints well in one colour.
It downloads free as an SVG vector or transparent PNG in seven sizes, and the free online editor lets you recolor it, apply gold, silver, neon and gradient styles, add animation, or convert it to EPS, PDF and DXF.
Free for personal and commercial use with attribution.
