Ever stared at a cron expression like */15 9-17 * * MON-FRI and whispered to yourself:
“What the CRON is this supposed to do?”
Yeah, same.
WhatTheCron is a clean, modern, mildly dramatic visualizer + explainer for your cryptic cron schedules.
No BS. Just type it in, and instantly see what’s going on.
Paste in a cron string, and you'll get:
- 🔍 A human-readable explanation (you won’t need a second monitor and Stack Overflow)
- 🕒 A list of upcoming run times
- 💡 A breakdown of each field with smart highlights
- 🎨 A slick UI that doesn't look like it's from 2006
- 🌘 Dark mode. Obviously.
“Show me the goods.”
(Add a screenshot here once you’ve got one. Or don’t. I’m not your boss.)
Yes. Go ahead. Type * * * * walrus and see what happens.
You’ll get helpful error messages, because even bad cron deserves love.
- Next.js – Because pages are nice
- TailwindCSS – So I never touch a stylesheet again
- English → Cron (Reverse mode. Magic stuff.)
- Export to
.ics, bash, or a tattoo - Save your favorite crons like a Spotify playlist
- Widget/embed mode for Notion, Docs, etc.
git clone https://github.com/de7ign/whatthecron.git
cd whatthecron
npm install
npm run devThen go to http://localhost:3000 and break stuff responsibly.
Hi. I’m Nihal. I built this mostly to make cron jobs suck less. If it helped you, drop a ⭐. Or don’t. I’ll live.
MIT. Because sharing is caring.