// 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
Cron Expression
Developer · tool
Cron Expression
Build and explain cron schedules in plain English.
Runs every 15 minutes at hour 9-17, on weekday 1-5.
Format: minute hour day-of-month month day-of-week. Use * for any, */n for every n, a-b for ranges.
// 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