Free Ecology Icon Set

Last Updated on August 4, 2026 by Editorial Team

An incredibly pretty set of 12 ecology icons that contains sun and cloud, tree, eco lightbulb, electric car, water faucet, recycle symbol, eco house, biohazard symbol, corn cob, apple, fire and a cow 🙂

Includes .EPS format.

Created by lvl

What makes this ecology icon set work so well is the consistency of its linework. Every icon shares the same thick, slightly rounded outline in a warm charcoal tone, which gives the whole set a friendly, hand-drawn feel rather than a clinical, corporate one.

The color palette leans into muted, natural tones: soft greens for the tree and leaf motifs, a dusty red for the apple and electric car, warm oranges for the cow and flame, and a pale butter yellow that shows up in the sun, the eco lightbulb, and the eco house.

Nothing here is neon or overly saturated, which is exactly why it reads as environmental and organic instead of techy or corporate.

That restrained palette also means the icons hold together visually even though the subject matter jumps from weather to farming to recycling to energy. A sun peeking out of a cloud sits comfortably next to a biohazard symbol and a corn cob because they all share the same stroke weight, the same rounded corners, and the same slightly playful proportions.

Where These Icons Fit Naturally

This set is built for any project that needs to talk about sustainability, farming, clean energy, or environmental responsibility without feeling heavy-handed.

• Sustainability reports, CSR pages, and green business websites that need approachable visuals instead of stock photography.
• Agricultural or farm-to-table branding, given the corn, apple, and cow icons.
• Renewable energy pitch decks and landing pages, where the eco lightbulb and electric car icons can anchor feature lists.
• Recycling programs, waste management apps, or municipal campaigns that need a clear recycle symbol paired with softer supporting icons.
• Educational materials for schools or nonprofits explaining climate topics, since the style feels warm enough for younger audiences.

Because the set mixes lighthearted subjects like a cow and a sun with more serious ones like the biohazard symbol, it works particularly well for content that has to cover both the positive and cautionary sides of environmental messaging in one cohesive visual language.

Adapting the icons to a specific brand is straightforward once you’re working in a vector editor. Ungroup or enter the icon group, then recolor the fill shapes to match a brand palette while keeping the dark outline intact, since that outline is what ties the whole set together.

If a brand uses a lighter or heavier line weight elsewhere in its identity, adjust the stroke width on all icons uniformly so the set still feels like one family rather than mismatched pieces.

Scaling is simple too: because these are vector shapes, they can be resized for a small UI badge or blown up for a poster header without losing the crispness of the outline.

For pairing, a rounded sans-serif font echoes the soft corners of the icons nicely, and a background of off-white or light beige lets the muted greens and oranges pop the way they do in the original preview.

If you’re building a fuller interface, these icons sit comfortably alongside flat illustration styles or badge-style graphics that use a similar bold outline, so you can extend the set with custom marks for topics it doesn’t cover, like solar panels or wind turbines, while keeping the visual language intact.