// 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.
139 results
Test Credit Card
Generators · tool
Test Credit Card
Luhn-valid Visa, Mastercard, Amex and Discover — for testing.
For testing only. Luhn-valid but not real accounts — will not process payments.
// 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