No Lock Sign black outline icon
Padlock inside a circle with a diagonal bar, meaning locking is not allowed
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About the No Lock Sign black outline 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 black outline version of the no lock sign 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.
