Utilities

Not sure exactly when a cron expression registered on your server actually fires? The cron parser shows the next several run times, and when a design mockup needs filler text, the Lorem Ipsum generator produces dummy text by word, sentence or paragraph.

Torn between setting Linux file permissions as octal (755) or as rwx symbols? The chmod calculator converts between the two notations, and when you need to know exactly what a 404 or 500 response code means, the HTTP status code reference has it.

Wondering about your current public IP address? The my-IP tool answers instantly, and the User-Agent parser breaks a browser's User-Agent string down into OS, browser and device — useful when digging through access logs.

Cron expressions run completely differently than intended if you mix up the minute-hour-day-month-weekday order, so feeding a value into the parser and checking the next few run times before deploying catches that mistake early. Reading a browser's info from server logs, remember a User-Agent string can be spoofed — useful for rough traffic stats, but not enough on its own for a security decision. Deciding between 755 and 644 permissions comes down to whether the file needs to execute; the chmod calculator shows octal and rwx side by side so that distinction is easy to see.