IconVault's Cron Builder lets you assemble a cron expression without memorizing the syntax. Each of the five fields, minute, hour, day of month, month and day of week, gets its own control with every, list, step and range modes, plus month and weekday name pickers. One-click presets cover the classics: every minute, hourly, daily, weekly and more.

As you build, the tool shows a plain-English explanation of the schedule and the actual next run times computed with a real cron parser, so you can verify before you deploy. The finished expression is one click away with a copy button. It is free and runs fully in your browser; nothing is uploaded.