Interface Essential

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Unicons

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Heroicons

Flagpack

Sharp solid icon of a black octagon with a white X. Used for danger, close, delete, and warning controls.

Dangerous

Sharp line icon of an octagonal outline with a centered X. Used for danger warnings and stop alerts.

Sharp line icon of an octagon with a crossed X inside. Used for danger warnings, hazards, and safety alerts.

Rounded line icon of an octagonal border with a bold X in the center. Used for danger warnings, hazards, and blocked actions.

Sharp line icon of an octagonal warning sign with an X. Used for hazards, danger alerts, and safety controls.

Rounded line icon of a rounded square containing an X. Used for close buttons, cancel actions, dialogs, and error states.

Rounded duotone icon of an octagonal outline with a centered X. Used for danger alerts, warnings, and error states.

Rounded flat icon of a dark X inside a rounded square. Used for danger alerts, errors, blocked actions, and delete controls.

Clean flat icon of a blue octagon with a dark blue X. Used for danger alerts, error states, and warnings.

Sharp line icon of an octagonal outline with a bold X inside. Used for danger warnings, error states, and hazard alerts.

Rounded duotone icon of a white X inside a blue rounded octagon. Used for close, cancel, delete, and error states.

Sharp gradient icon of a gradient octagon with a white X. Used for danger, errors, alerts and blocked actions.

Sharp hybrid solid and line icon of an octagonal outline with a bold X. Used for danger and warning alerts.

Rounded hybrid solid and line icon of an X inside a rounded octagon. Used for danger and hazard warnings.

Sharp colored solid icon of a coral octagon with a dark blue X. Used for danger warnings and blocked actions.

Sharp colored solid icon of an octagon with a green center and dark X. Used for danger and blocked actions.

Sharp flat icon of an octagon with a centered X. Used for danger warnings, blocked actions, and safety alerts.

Sharp solid icon of a white X inside a black octagonal sign. Used for errors, cancellation, warnings, and blocked actions.

Rounded gradient icon of a white X inside a rounded square. Used for danger alerts, error states, and delete controls.

Clean neon icon of an octagonal outline with a blue X inside. Used for dangerous actions and warning states.

Sharp duotone icon of a filled octagon with an X inside. Used for danger alerts and warnings.

Sharp gradient icon of a white X inside an orange-red octagonal shape. Used for danger alerts and delete actions.

Sharp neon icon of an outlined octagon with a blue X. Used for dangerous actions and warnings.

Rounded solid icon of a black rounded octagon with a white X cutout. Used for danger alerts, errors, and blocked actions.

Sharp hybrid solid and line icon of an octagonal outline with a bold X. Used for danger warnings, hazards, and stop alerts.

Clean duotone icon of an octagonal outline with a centered X. Used for dangerous actions, delete controls, and warning states.

Rounded neon icon of an X inside a rounded octagonal outline. Used for close, cancel, and dismiss controls.

Rounded colored solid icon of a dark X inside a yellow rounded octagonal shape. Used for danger, errors, and blocked actions.

Rounded colored solid icon of a green octagon with a dark blue border and X. Used for danger alerts and blocked actions.

Rounded solid icon of a white X inside a black rounded octagon. Used for danger alerts and destructive actions.

Rounded gradient icon of a white X inside a rounded square. Used for close, cancel, delete, and dismiss controls.

Rounded flat icon of an X inside a rounded square. Used for close, cancel, and error states.

Rounded line icon of a rounded octagon enclosing crossed diagonal lines. Used for danger warnings and hazard alerts.

Rounded neon icon of a rounded octagonal outline with a blue X. Used for danger, error, and blocked states.

Sharp line icon of an octagonal sign with an X. Used for errors, cancellation, blocking, and danger states.

Sharp hybrid solid and line icon of a rounded octagonal outline with a bold X. Used for danger, hazards, and warnings.

Clean line icon of a box with top flaps and a circular three-bar symbol. Used for hazardous shipping and logistics.

Dangerous Logistic Box

Clean line icon of a cargo ship with a skull symbol, tall container, and waves. Used for hazardous shipping and logistics.

Dangerous Logistic Ship

Sharp solid icon of a black octagon with a white X. Used for danger alerts, errors, and blocked actions.

Dangerous Fill

Rounded solid icon of a black rounded octagon with a white X. Used for danger warnings, errors, and prohibited actions.

Sharp line icon of a triangle containing a lightning bolt. Used for electrical hazards and warning signs.

Dangerous Zone Sign

Sharp hybrid solid and line icon of a triangular sign with a lightning bolt. Used for electrical hazards and safety.

Sharp flat icon of a lightning bolt inside a triangle. Used for hazard signs and electrical warnings.

Sharp gradient icon of a triangular warning sign with a lightning bolt. Used for hazard alerts and restricted areas.

Sharp colored solid icon of a blue triangle containing a coral triangle and lightning bolt. Used for hazard signs and warnings

Sharp duotone icon of a triangular hazard sign with a lightning bolt. Used for electrical warnings and dangerous zones.

Sharp neon icon of a triangular warning sign with a lightning bolt. Used for electrical hazards and danger alerts.

Sharp solid icon of a black triangle with a white lightning bolt. Used for danger signs, hazards, and warnings.

Clean line icon of a ship with a tall smokestack, waves, and skull symbol. Used for hazardous cargo, maritime logistics.

Sharp solid icon of a ship with waves, cabin, tall structure, and round two-hole cargo. Used for logistics and shipping.

The Dangerous icon shows a dark blue X centered inside a rounded light blue square. Drawn in the flat style on a 14px grid for a clean, illustrative appearance. Use it for close buttons, cancel actions, error states, and dangerous-action warnings. It belongs to Flex Flat set in the Flex family.

<p>Flex is all about the curves. Its smooth curves brings fluidity and dynamism to your designs with a modern appeal.&nbsp;The Flat style is easy to integrate into projects that need icons with a more illustrative purpose, working best at larger sizes. All Flex Flat icons are designed on a 14px grid with two customizable colors.</p>

Flex Flat

<p>Flex is a fluid icon family inspired by nature’s curves. It favors smooth, flowing forms. More organic than Core and subtler than the chunky Plump. Read about the <a href="https://blog.streamlinehq.com/flex/" rel="noopener noreferrer" target="_blank">design process</a>.</p>

Dangerous is a flat-style Icon from Flex Flat set.

The Dangerous icon shows a dark blue X centered inside a rounded light blue square. Drawn in the flat style on a 14px grid for a clean, illustrative appearance. Use it for close buttons, cancel actions, error states, and dangerous-action warnings. It belongs to Flex Flat set in the Flex family.