4 Free Chemistry Illustrations
Last Updated on July 15, 2026 by Editorial Team
A gorgeous set of 4 minimalistic chemistry illustrations, designed by Alex Kunchevsky. The freebie is available in both .SVG and .PNG formats.
Free for both personal and commercial use.
Each of the four scenes in this chemistry illustration set is built around a single lab moment: a dropper adding solution to an Erlenmeyer flask, a test tube rack bubbling with colored liquids, a beaker being heated over an open flame, and a microscope angled for viewing. What makes the set feel cohesive is the consistent linework: thick, rounded outlines in deep navy, paired with a soft, muted background layer of ghosted flasks and bottles that sit behind the main subject at a lower opacity. That background layer does a lot of work. It gives each illustration depth and a sense of a busier lab environment without ever competing with the main object for attention.
The color palette leans playful rather than clinical. Instead of sterile whites and greys, you get warm orange liquid in the flask, a bright green solution bubbling in the heated test tube, and a rack of tubes filled with mustard yellow, magenta, and coral. The microscope swaps that palette for cool blues and a warm terracotta base, which reads as a nice accent color against all the blue-heavy scenes elsewhere in the set. A thin baseline with small dashes and dots runs under every illustration, grounding the composition and giving it the feel of a small vignette rather than a floating object.
This kind of flat, line-based science illustration is a natural fit for anything touching education, research, or healthcare. Think:
- Landing pages for edtech products, science tutoring platforms, or online course marketplaces
- Blog headers and article graphics about biology, chemistry, or STEM topics
- Slide decks and presentations for science teachers, lab training materials, or academic pitches
- App onboarding screens for study apps, quiz platforms, or lab management tools
- Icon-style graphics for pharma, biotech, or cosmetics brands that want a friendly, approachable visual instead of stock photography
Because the style is so clean and geometric, these illustrations also hold up well at small sizes, which makes them useful as favicon-adjacent graphics, app icons, or thumbnail art where a photo would lose all its detail.
Adjusting Colors Without Losing the Line Style
The line weight and the ghosted background elements are really the backbone of this style, so when you adapt these illustrations for a brand, focus your edits on color rather than restructuring the shapes. A few practical ways to do that in any vector editor:
- Select the colored liquid shapes (the orange in the flask, the green in the tube) and swap them for your brand’s primary or accent color, keeping the navy outline untouched so the linework stays consistent.
- Recolor the terracotta base of the microscope or the accent details to match a secondary brand color, which helps tie the illustration into a broader palette without flattening it into a single hue.
- Leave the pale background flasks alone, or push their opacity even lower if you want the foreground subject to pop more against a busy page layout.
- If you’re placing these on a dark background, invert the outline color to white or a light tone and test contrast against the fill colors, since the current linework is designed for light backgrounds.
Because each illustration is a self-contained scene, they work nicely scaled down and placed inside circular or rounded-square badges for a feature list, or lined up in a row as icons above a three or four column layout describing product benefits. They also pair well with simple sans-serif headlines and generous white space, since the illustrations themselves already carry a lot of visual texture through their layered background elements. Avoid placing them next to heavily detailed photography or busy patterns, since the appeal here is the contrast between the clean line art and open background.
If you only need one or two of the four scenes, the test tube rack and the microscope tend to be the most versatile on their own, since they read clearly as generic science symbols. The flame-heated beaker and dropper scene work best when you want a more narrative, in-progress feel, like illustrating a step in a process or a stage in an experiment.
