Create geometric low-poly art in seconds. Start from a color gradient for wallpapers and backgrounds, or drop in a photo and the tool rebuilds it from triangles, following the edges in the picture. Export a sharp PNG or JPG, or a scalable SVG.
Last updated:
Drop a photo to triangulate it
Generating…
Source
Color palette
No photo yet · or drop / paste one
Pattern seed: 1. The same seed and settings always give the same pattern.
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How to use the Low Poly Generator
Choose a source: Random gradient for backgrounds and wallpapers, or From a photo to triangulate your own picture (you can also drop or paste it onto the preview).
Set the colors or the photo options: pick a palette and angle, or choose how strongly the triangles follow edges in the photo.
Adjust Points and Variance: more points means smaller triangles and more detail; higher variance makes the mesh less regular.
Click Generate new pattern until you like the layout. Turn on triangle edges for a wireframe look.
Download PNG, JPG or SVG. SVG stays sharp at any size and can be edited in vector apps.
How the low poly generator works
Place points. Points start on a regular grid sized so the total matches your Points setting. Variance moves each point randomly within its grid cell; border points slide only along the edge so the picture stays fully covered. In photo mode, part of the points are instead placed where the Sobel edge detector finds strong edges.
Triangulate. The points are joined with Delaunay triangulation (Bowyer-Watson algorithm): no point lies inside the circumcircle of any triangle, so triangles stay as close to equilateral as the points allow.
Color. Each triangle is filled with one flat color, taken from the gradient or sampled from the photo at its centroid.
Settings guide
Goal
Points
Variance
Other
Soft desktop wallpaper
200 to 600
70 to 100%
Color variation 5 to 15%
Crystal / shard look
60 to 200
100%
Edges on, white at 20 to 40%
Regular geometric grid
300 to 1,000
0 to 15%
Edges on for a wireframe
Recognizable photo
1,500 to 4,000
50 to 80%
Follow edges 50 to 70%, Average sampling
Abstract photo
150 to 500
80 to 100%
Follow edges 20 to 40%
PNG, JPG or SVG?
PNG is lossless and perfect for wallpapers and graphics. JPG is smaller for photo-based art with many triangles. SVG stores every triangle as a vector shape, so it scales to any size without blurring and can be recolored in vector editors; it is best for backgrounds on websites and print when the point count is moderate.
Frequently asked questions
What is low poly art?
Low poly art represents an image with a small number of flat-colored polygons, usually triangles. The look comes from 3D graphics, where low-polygon models were used for speed, and is now a popular style for wallpapers, backgrounds and illustrations.
What is Delaunay triangulation?
It is a way of connecting a set of points into triangles so that no point lies inside the circumcircle of any triangle. This maximizes the smallest angles, avoiding long thin slivers, which is why Delaunay meshes look balanced. The tool uses the Bowyer-Watson algorithm.
How are the triangle colors chosen?
In gradient mode, each triangle takes the gradient color at its center plus a small random light or dark shift (Color variation). In photo mode, each triangle takes the photo color at its center, or the average of four points inside it for a smoother result.
How many points should I use?
For wallpapers and backgrounds, 300 to 1,500 points give the classic low-poly look. For recognizable photo portraits, try 1,500 to 4,000 points with Follow edges around 50 to 70% so detail concentrates on eyes, outlines and edges.
Why is the SVG file large?
Each triangle is stored as its own shape, so 2,000 points produce about 4,000 shapes. That is still usually a few hundred kilobytes. Use fewer points for a smaller SVG, or PNG/JPG for very dense meshes.
Is my photo uploaded?
No. The photo is read and triangulated entirely in your browser. Nothing is sent to a server.
Can I reproduce the same pattern later?
Yes. Patterns are generated from a seed number shown under the settings. With the same seed, size and settings you get the same mesh and colors.
Are all the tools on FreeToolCabin tested for quality and accuracy?
Yes! Every tool on our site undergoes automated Q/A testing in real browser environments to ensure high precision, correct output, and zero errors. If you happen to spot a bug or have a suggestion, please contact us at [email protected] and our team will review it right away.