Test Tube
The test-tube icon represents a laboratory test tube, often used to symbolize scientific experiments or chemical analysis.
Exports at 24 × 24 px
Code
Test Tube in your framework
In any framework. Customize it above, and the code follows.
export const TestTubeIcon = (props: React.SVGProps<SVGSVGElement>) => (
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" {...props}>
<path fill="none" stroke="currentColor" strokeWidth="1.5" d="M3 2h18M6.5 2h11v14.5a5.5 5.5 0 1 1-11 0zm0 7.5h11"/>
</svg>
);Other libraries
Test Tube in 8 more libraries
Each library draws it its own way. Open one to compare.
Sharp free icons
More like it
Icons that share its tags, in the same style.
Search Sharp free icons
Skip the copy and paste. With Pro, your AI agent finds and installs any Sharp free icons icon from a prompt.
Get ProTags
Browse by tag
Test Tube is tagged UI, design, science and 3 more. Related tags follow; each opens its icons from every library.
Pricing
Sharp free icons MCP, with Pro
Ask for Test Tube or any of 1,500 Sharp free icons icons and your agent installs it. The MCP comes with every Pro plan, with 6,000+ blocks and 14 premium templates. The icons stay free.
4.9/5 out of 5 · 150+ reviewsfrom 150+ founders and developers.
- Secure checkout via Stripe
- Code lives in your repo
- Keep what you've shipped if you cancel
- License terms
FAQ
Frequently asked questions
What the Test Tube icon means and where it's used, then how to install, style, label and license it.
The test-tube icon represents a laboratory test tube, often used to symbolize scientific experiments or chemical analysis. The test tube is a popular icon in science and education, signifying experimentation and discovery. It originated from laboratory equipment and has been adapted into various digital designs.
In real-world applications, the test-tube icon appears in software like educational platforms, scientific simulation tools, and laboratory management systems. It can also be found in science textbooks, online courses, and educational resources.
From a UX perspective, the test-tube icon communicates a sense of experimentation and analysis. It helps users understand that a particular feature or button is related to scientific inquiry or data analysis. The icon's simple outline makes it easily recognizable and distinguishable from other icons.
Test Tube is one of 1,500 icons in Sharp free icons, made by Streamline and released under CC BY 4.0. It is drawn on a 24 × 24 grid with a 1.5 stroke.
Sign in (it's free), then open Get icon, Install with shadcn CLI, and pick your package manager to copy the command. It adds TestTubeIcon to components/icons/streamline-sharp-test-tube.tsx: one file, a size prop (24 by default) and every SVG prop, with no icon package.
Copy it as React (from Get icon, or the Code section): a typed TestTubeIcon component you paste into your project, with no package to install. Only the icons you import reach your bundle. It works in Next.js and any React app.
Open Get icon, then Copy as code, and pick Vue, Svelte, Angular, Solid or Preact; the Code section shows each one too. Every version is one self-contained component with the SVG inside, and SVG and data URL copies are there for plain HTML and CSS.
With Pro, the shadcn.io MCP server lets Claude Code, Cursor or any MCP client find the Test Tube icon, or any of 1,500 Sharp free icons icons, and install it from a prompt.
It's drawn in currentColor, so it takes the text color wherever you use it: a class like text-primary recolors it. To bake a color in, set one in Customize before you copy.
Set width and height on the component, or a class like size-6. It's drawn on a 24 × 24 grid, so it stays sharp at any size. Customize also sets the size it exports at, its padding and rotation, and its stroke.
Test Tube is a line icon drawn with a stroke width of 1.5. Change it in Customize before you copy, or pass strokeWidth to the installed component when all of its strokes share one width.
Yes. It follows the text color, so with text-foreground (or any theme token) it changes with your light and dark themes. The icon is a vector, so it needs no separate dark asset.
Next to a visible label it's decoration: add aria-hidden="true" so screen readers skip it. Standing alone, as in an icon button, give the button a name instead, like aria-label="Test Tube", so screen readers say what it does.
Yes. TestTubeIcon passes every SVG prop to the svg element, so <TestTubeIcon aria-hidden="true" /> works, and so do role="img" with aria-label, or a title child, when it carries meaning on its own.
Yes. Open Get icon, then Download file: SVG for code or design tools like Figma; PNG, WebP or JPEG at 512px; or an ICO favicon with 16, 32 and 48px inside. Each one uses what you set in Customize.
Yes, with credit: CC BY 4.0 asks you to credit the author (Streamline) where you use the icons. The full terms are in the license, linked on this page.
Yes. CC BY 4.0 asks you to credit the author where you use the icons, for example "Icons by Streamline, CC BY 4.0" on an about or credits page.
Yes. Copying and downloading it is free, and the shadcn CLI install only needs a free account.
8 other libraries draw an icon called Test Tube. The Other libraries section on this page shows each one, so you can compare them and open the one that fits your style.
Its tags are UI, design, science, equipment, lab and experiment. Each tag page lists the icons that carry it from every library, which is the quickest way to find a match for Test Tube in another set.
Sharp free icons draws many icons in several styles: Solid next to the default. Open the library and pick a style above the grid to see Test Tube's siblings in it.
4.9 out of 5 from 150+ developers
Install Test Tube from a prompt
MCP, 6,000+ blocks and 14 premium templates in every Pro plan. The icons stay free.
Get Pro