Random Image Generator

Procedurally generates a genuinely new abstract SVG image on every call: a random-angle linear gradient background between two random colors, topped with a chosen number of randomly positioned, sized, colored, and shaped circles, rectangles, and triangles. A free online tool from Staaarter, right in your browser.

Runs locallyUpdated 2026-07-26

Overview

Introduction

This tool generates a fresh, never-before-seen piece of abstract art on every single call: a colorful gradient backdrop scattered with randomly shaped, sized, and colored geometric shapes.

It's the procedural counterpart to the Random Image Picker: rather than choosing among a handful of fixed patterns, everything here is built from scratch each time.

What Is Random Image Generator?

A generative abstract-art tool that layers randomly scattered circles, rectangles, and triangles over a two-color gradient background.

Every visual property, the gradient's two colors and angle, and each shape's type, position, size, color, and opacity, is independently randomized on each generation.

How Random Image Generator Works

Two random HSL colors and a random rotation angle define a linearGradient that fills the entire canvas as the background.

For each requested shape, a random type (circle, rectangle, or triangle) is chosen, then given a random position within the canvas, a random size relative to the canvas's smaller dimension, a random HSL color, and a random opacity for a bit of layered translucency.

All of this is assembled into one SVG string with a background rect and one element per scattered shape.

When To Use Random Image Generator

Use it whenever you want guaranteed-unique abstract art, a colorful placeholder background, cover art, or a decorative accent that's never a repeat of a previous generation.

It's a better fit than the Random Image Picker specifically when you need genuinely fresh output rather than one of a small recognizable set of looks.

Features

Advantages

  • Every generation is unique — there's no fixed pool of outcomes to repeat.
  • Produces a scalable SVG that stays crisp at any display size.
  • Shape count is adjustable for anything from a minimal single-accent look to a dense, busy composition.

Limitations

  • Shapes are simple geometric primitives (circles, rectangles, triangles); this isn't a tool for photorealistic or illustrative imagery.
  • Shape placement is fully independent and random, so shapes can overlap heavily with no layout or spacing logic.
  • Capped at 60 shapes and 1200px per dimension to keep generation and rendering fast.

Examples

A dense 40-shape composition

Input

(no input; generated from settings)

Output

A 400x300 SVG with a random-angle two-color gradient background and 40 randomly scattered circles, rectangles, and triangles

A higher shape count produces a busier, more layered look.

A minimal single-shape composition

Input

(no input; generated from settings)

Output

The same style of gradient background with just one scattered shape

shapeCount: 1 produces a clean, minimal accent over the gradient.

Best Practices & Notes

Best Practices

  • Use a lower shape count (5-15) for a clean decorative accent, and a higher count (30+) for a busy, textured background.
  • Download the SVG right after generating if you like a specific result, since it can't be recreated from settings alone.

Developer Notes

Each scattered shape independently rolls its own type, position, size, color, and opacity via Math.random(), with no shared seed or layout grid, which is what guarantees every generation looks meaningfully different from the last, unlike the fixed-pattern Random Image Picker tool.

Random Image Generator Use Cases

  • Generating unique decorative background art for a page or app
  • Creating one-off abstract cover art or placeholder imagery
  • Producing a colorful accent graphic that's guaranteed not to repeat a previous result

Common Mistakes

  • Expecting the same image twice — nothing here is derived from a fixed set, every generation is independently random.
  • Requesting a very high shape count at a large canvas size and expecting instant rendering in the DOM preview.

Tips

  • Try a range of shape counts side by side to find the density that fits your use case.
  • Pair a low shape count with a large canvas for a spacious, minimal composition.

References

Frequently Asked Questions