trysandbox.io logotrysandbox.io

// a sandbox of 139 sharp tools

Every little generator
you keep googling for.

QR, barcodes, bcrypt hashes for PHP, UUIDs, JWT decoders, color palettes — fast, local, no signup. Search the sandbox and start.

CSS Pattern Background

Design · tool

CSS Pattern Background

Stripes, dots, checkers, grid and crosshatch backgrounds.

.pattern {
  background-color: #0f172a;
  background-image: radial-gradient(#334155 1.5px, transparent 1.5px);
  background-size: 20px 20px;
}

// about the sandbox

The small utilities you need,
without the ad-walls.

Every generator runs entirely in your browser. Your inputs never leave the page — no servers, no logging, no tracking pixels. Open the tool, get the thing, close the tab.

  • 100%client-side
  • 0accounts
  • 139sharp tools
  • ∞free forever