DNA black outline icon
DNA double helix with base-pair rungs inside a circular outline
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About the DNA black outline icon
A vertical double helix sits at the center of a thin circular frame. Two strands cross three times and the middle section is filled with short horizontal rungs that stand in for base pairs, while the top and bottom ends taper into open forks. The mark reads as genetics, heredity, molecular biology and DNA testing at a glance. Use it in lab software, health and ancestry apps, biotech presentations, research posters and medical record sections.
The helix is narrow relative to the enclosing circle, leaving generous breathing room so the shape stays crisp as a badge or avatar. Rung spacing is even and the strand weight matches the frame. Pair it with microscope, molecule and test tube icons; below 32 px the base-pair lines merge, so use a rung-free variant there.
This is the black outline version of the dna icon: even, monoline strokes that stay crisp at small sizes and suit clean, minimal interfaces, wireframes and light backgrounds.
Download it free as a scalable SVG vector or transparent-background PNG in seven sizes (16 to 512px), copy the SVG code straight into your project, or open it in the free online editor to change colors, apply gold, silver, neon and gradient styles, animate it, or convert it to EPS, PDF and DXF.
Free for personal and commercial use with attribution.
