How to low poly svg background generator free online
- Step 1Upload a source image or choose a colour palette — Upload a photo (landscape, portrait, or abstract) for a colour-sampled low-poly result, or skip the image and use the palette picker to define 3–8 colours for a fully abstract low-poly background.
- Step 2Adjust triangle density — Start with 200 triangles for a bold, geometric look. Increase to 1000+ for a more detailed effect that still reads as low-poly at a distance. Very high triangle counts (3000+) produce photorealistic results that lose the aesthetic — stay under 800 for the classic look.
- Step 3Download the SVG — Download the generated SVG. Each polygon is an individual path element with a fill colour sampled from the source. The SVG can be used as a CSS background-image, an img tag, or inline in HTML for maximum flexibility.
Frequently asked questions
How are the triangle positions determined?+
The generator uses Delaunay triangulation — a classical computational geometry algorithm that produces a set of triangles where no point is inside any triangle's circumcircle. Random seed points are placed across the image, then Delaunay triangulation connects them into a mesh. The result is a natural-looking triangulation without long, thin slivers.
Can I use a low-poly SVG as a video background?+
Yes. Generate a static low-poly SVG as the fallback background. For motion, generate 3–5 low-poly frames from the same source and morph between them using JavaScript path interpolation or CSS animations. The polygons share the same mesh topology across frames, enabling smooth morphing.
What image types work best as low-poly source material?+
Images with distinct, separated colour regions work best: sunsets, landscapes, abstract gradients, geometric photography. Faces and portraits work but require 400+ triangles to remain recognizable. Highly detailed images (busy patterns, grass, fur) produce low-poly results that lose all coherence at low triangle counts.
How large is a typical low-poly SVG file?+
A 200-triangle low-poly SVG is typically 15–30KB. A 1000-triangle SVG is 80–120KB. These sizes gzip to around 25–40% of their uncompressed size. For hero backgrounds where the SVG is the dominant visual element, 30–60KB gzipped is acceptable. Use PNG export for lower file sizes at the cost of scalability.
Privacy first
Every JAD SVG tool runs entirely in your browser using the DOM API and Canvas. Your SVG files never leave your device — verified by zero outbound network requests during processing.