Icons

Key icon

Compare 21 free key icons from 21 open-source libraries and pick the one that matches your design system. Every icon on this page downloads as an editable SVG or a transparent PNG at any size from 16px to 512px — no login, no account, no attribution required.

Compare all 21 in the editor More security icons

All 21 free key icons

Key icons from 21 libraries

Every icon below is the same "key" concept rendered by a different library. Click any tile to open it in the editor, set a custom size and colour, and download SVG or PNG.

Ant Design Icons Fill Bootstrap Icons Fill Boxicons Bold Carbon Icons Fill CSS.gg Outline Feather Outline Fluent UI Icons Bold Heroicons Outline Iconoir Outline IconPark Outline Outline IconPark Solid Bold Ionicons Fill Lucide Outline Material Design Icons Fill Material Symbols Fill Material Symbols Light Light Octicons Outline Phosphor Outline Remix Icons Bold Solar Icons Bold Tabler Icons Outline

Library comparison

Which library should you use?

LibraryStyleLicenseKey icon
Ant Design Icons Fill MIT Key
Bootstrap Icons Fill MIT Key
Boxicons Bold MIT Key
Carbon Icons Fill Apache 2.0 Key
CSS.gg Outline MIT Key
Feather Outline MIT Key
Fluent UI Icons Bold MIT Key 16 Filled
Heroicons Outline MIT Key
Iconoir Outline MIT Key
IconPark Outline Outline Apache 2.0 Key
IconPark Solid Bold Apache 2.0 Key
Ionicons Fill MIT Key
Lucide Outline ISC Key
Material Design Icons Fill Apache 2.0 Key
Material Symbols Fill Apache 2.0 Key
Material Symbols Light Light Apache 2.0 Key
Octicons Outline MIT Key
Phosphor Outline MIT Key
Remix Icons Bold Apache 2.0 Key Fill
Solar Icons Bold CC BY 4.0 Key Bold
Tabler Icons Outline MIT Key

Outline sets such as Lucide, Tabler and Feather stay legible at 16px in dense interfaces. Material Symbols and Bootstrap Icons give you matched outline and filled pairs. Phosphor, Solar and Fluent add duotone, bold and weight-graded variants when you need more visual hierarchy.

Use this icon in your project

Inline SVG (copy & paste)

Paste this straight into HTML or JSX. It inherits currentColor, so it follows your theme.

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1024 1024" width="24" height="24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" role="img" aria-label="key icon"><path fill="currentColor" d="M608 112c-167.9 0-304 136.1-304 304c0 70.3 23.9 135 63.9 186.5L255.8 713.6l-62.3-62.3c-3.148-3.08-8.252-3.08-11.4 0l-39.8 39.8c-3.08 3.148-3.08 8.252 0 11.4l62.3 62.3l-44.9 44.9l-62.3-62.3c-3.148-3.08-8.252-3.08-11.4 0l-39.8 39.8c-3.08 3.148-3.08 8.252 0 11.4l110.3 111.2c3.1 3.1 8.2 3.1 11.3 0l253.6-253.6A304.1 304.1 0 0 0 608 720c167.9 0 304-136.1 304-304S775.9 112 608 112m161.2 465.2C726.2 620.3 668.9 644 608 644s-118.2-23.7-161.2-66.8C403.7 534.2 380 476.9 380 416s23.7-118.2 66.8-161.2c43-43.1 100.3-66.8 161.2-66.8s118.2 23.7 161.2 66.8c43.1 43 66.8 100.3 66.8 161.2s-23.7 118.2-66.8 161.2"/></svg>

React component

Install the package for the library you picked, then import the component.

npm install @ant-design/icons

import { Key } from "@ant-design/icons";

export function Example() {
  return <Key size={24} />;
}

Choosing the right key icon

Match the icon to the interface

A key icon has to read instantly at whatever size your interface uses. Below 20px, prefer outline artwork with a consistent stroke weight — heavy filled glyphs turn into blobs. For navigation bars and empty states above 32px, filled or duotone versions carry more visual weight and scan better.

Keep stroke weight consistent across every icon in a view. Mixing a 1.5px Lucide glyph with a 2px Tabler glyph in the same toolbar is the most common reason icon sets look unprofessional.

Accessibility

Decorative icons need aria-hidden="true" so screen readers skip them. If the key icon is the only thing labelling a control — an icon-only button, for example — give the button an aria-label such as "Key" and leave the SVG itself hidden.

Never rely on the icon alone to convey state. Pair it with a tooltip or visible text wherever the meaning is not already obvious from context.

Related icon searches

Lock iconShield iconScan iconClock iconFingerprint iconUnlock iconShield Check iconPassword iconBlock iconShield Plus iconShield Lock iconShield Minus icon

Libraries on this page

Ant Design IconsBootstrap IconsBoxiconsCarbon Iconscss.gg IconsFeather IconsFluent UI IconsHeroiconsIconoirIconPark OutlineIconPark SolidIoniconsLucide IconsMaterial Design IconsMaterial SymbolsMaterial Symbols LightOcticonsPhosphor IconsRemix IconSolar IconsTabler Icons

Frequently asked questions

Where can I download a free key icon?

IconStash indexes 21 free key icons from 21 open-source libraries, including Ant Design, Bootstrap, Boxicons, Carbon, CSS.gg. Choose one on this page, set the exact size and colour, then copy the SVG markup or download a transparent PNG. No account and no login are required.

Are these key icons free for commercial use?

Yes. Every icon on this page comes from an open-source library published under a permissive licence (MIT, Apache-2.0, ISC, CC BY 4.0 and similar), all of which allow commercial use. The comparison table above lists the licence for each library so you can confirm the exact terms before shipping.

Can I download a key icon as a PNG?

Yes. Open any icon on this page, set an exact pixel size between 16px and 512px, choose any colour, and download a transparent PNG. Because every icon here is a vector, the exported PNG stays sharp at any resolution — IconStash also offers a ZIP pack containing 16, 24, 32, 48, 64, 128, 256 and 512px files.

Which library has the best key icon?

It depends on the design system you are matching. Outline libraries such as Lucide, Tabler and Feather suit dense product interfaces; Material Symbols and Bootstrap Icons ship matched outline and filled variants of the same glyph; Phosphor and Solar add duotone, bold and broken weights. The grid above shows all 21 options side by side so you can judge them at real size.

How do I add a key icon to a React app?

Copy the SVG markup for any icon on this page and paste it directly into JSX, or install the official npm package for the library you picked — lucide-react, @tabler/icons-react, @phosphor-icons/react, react-bootstrap-icons and react-icons are the most common. Both approaches are shown in the code samples above.

What sizes and styles do key icons come in?

All 21 icons on this page are vector artwork, so they scale cleanly to any size. The libraries represented here render the key concept in fill, bold, outline, light styles, and IconStash can export PNGs at 16, 24, 32, 48, 64, 128, 256 or 512px, or any custom value in between.

Can I change the colour of a key icon?

Yes. Icons are exported using currentColor, so they inherit the CSS colour of their parent element and follow your theme automatically. You can also pick an exact hex colour in the IconStash editor before downloading, or override the colour with a CSS rule such as .icon { color: #C1DD2D; }.