Icons

Test Tube icon

Compare 12 free test tube icons from 12 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 12 in the editor More interface icons

All 12 free test tube icons

Library comparison

Which library should you use?

LibraryStyleLicenseTest Tube icon
Boxicons Outline MIT Test Tube
Huge Icons Outline MIT Test Tube
Iconoir Outline MIT Test Tube
IconPark Outline Outline Apache 2.0 Test Tube
IconPark Solid Bold Apache 2.0 Test Tube
Lucide Outline ISC Test Tube
Material Design Icons Fill Apache 2.0 Test Tube
Mingcute Bold Apache 2.0 Test Tube Fill
Phosphor Outline MIT Test Tube
Pixel Art Icons Fill MIT Test Tube
Remix Icons Bold Apache 2.0 Test Tube Fill
Solar Icons Bold CC BY 4.0 Test Tube Bold

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 24 24" width="24" height="24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" role="img" aria-label="test-tube icon"><path fill="currentColor" d="m13.293 2.707l.818.818L3.318 14.318C2.468 15.168 2 16.298 2 17.5s.468 2.332 1.318 3.183C4.169 21.532 5.299 22 6.5 22s2.331-.468 3.182-1.318L20.475 9.889l.818.818l1.414-1.414l-8-8zm3.182 8.354l-2.403-2.404l-1.414 1.414l2.403 2.404l-1.414 1.415l-.99-.99l-1.414 1.414l.99.99l-1.415 1.415l-2.403-2.404L7 15.728l2.403 2.404l-1.136 1.136c-.945.944-2.59.944-3.535 0C4.26 18.795 4 18.168 4 17.5s.26-1.295.732-1.768L15.525 4.939l3.535 3.535z"/></svg>

React component

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

npm install boxicons

import { TestTube } from "boxicons";

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

Choosing the right test tube icon

Match the icon to the interface

A test tube 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 test tube icon is the only thing labelling a control — an icon-only button, for example — give the button an aria-label such as "Test Tube" 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

Test Tube Line iconSquare iconStar iconHome iconLink iconUpload iconDownload iconFilter iconSearch iconBluetooth iconFlag iconTrophy icon

Libraries on this page

BoxiconsHuge IconsIconoirIconPark OutlineIconPark SolidLucide IconsMaterial Design IconsMingCute IconsPhosphor IconsPixel Art IconsRemix IconSolar Icons

Frequently asked questions

Where can I download a free test tube icon?

IconStash indexes 12 free test tube icons from 12 open-source libraries, including Boxicons, Huge, Iconoir, IconPark Outline, IconPark Solid. 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 test tube 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 test tube 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 test tube 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 12 options side by side so you can judge them at real size.

How do I add a test tube 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 test tube icons come in?

All 12 icons on this page are vector artwork, so they scale cleanly to any size. The libraries represented here render the test tube concept in outline, bold, fill 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 test tube 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; }.