Biology icons (SVG)
Sciicons has 2,801 biology icons in SVG across cell biology, microbiology, virology, molecular biology, genetics, immunology, neuroscience, anatomy, plants and animals (counted October 11, 2026, free and Pro). Each icon is a scalable vector you can recolour and resize without losing quality.
Why use SVG biology icons?
SVG (Scalable Vector Graphics) is a vector format: shapes are stored as paths rather than pixels, so an icon stays sharp in a single-column journal figure and on an A0 poster. You can change colours to match your palette and edit individual parts in Inkscape or Illustrator.
Biology categories
- Cells 924
- Cell membranes 285
- Molecular biology 497
- Genetics 253
- Proteins 319
- Microbiology 281
- Viruses 95
- Immunology 228
- Neuroscience 138
- Cancer biology 56
- Tissues 292
- Human physiology 712
- Animals 592
- Plants 388
Sample free biology icons
400% Icon
Actin Polymerization
Adenovirus
Adenovirus with Modified DNA
Adult Female American Dog Tick
Bafilomycin A
Cell membrane (1) 10 Icon
Date Palm
Syringe Vaccine
Tumour
Virus Lab Research Syringe
CycleGAN
Deep Belief Network
Denoising Variational Autoencoder
DNA Double Helix
Generative Adversarial Network
Hamiltonian Graph
Normalizing Flow Coupling Layer
Sublattice Points
Timed Event Graph
Variational Autoencoder
Jasplakinolide- Jasplakinolide
Lab Hamster
Biology illustration packs
- DNA and Molecular Biology 37
- Neuroscience 47
- Immunology 40
- Plants & Crop Research 39
- Cancer Biology 39
- Human Organs 40
- Cell Organelles 40
- E. coli 26
- Yeast 25
- Cardiovascular 45
See also: colour-blind-safe palettes and journal figure requirements.
Frequently asked questions
- Where can I download free biology icons in SVG?
- Browse the biology categories on Sciicons (cells, microbiology, viruses, molecular biology and more), open an icon and download the SVG or copy it to the clipboard.
- Can I recolour the icons?
- Yes. Icon pages include in-browser recolouring, and any SVG can be recoloured in a vector editor.
- Are the biology icons scientifically accurate?
- Icons come from established open libraries and original drawings. Schematic icons simplify structures, so check that the level of detail suits your figure and describe it in the legend.