Line tools.

Sort, deduplicate, trim, reverse, change case, and number lines of text — for cleaning up a list of IPs, hostnames, log lines, or keys without chaining sort | uniq | sed in a shell.

The shell one-liner, without the shell

Half of working with lists is the same handful of operations — sort, drop duplicates, strip whitespace, lowercase — that you would normally pipe together with sort, uniq, and tr. When the list is already in front of you, doing it in the browser is faster and keeps internal data off anyone else’s server. Stack the operations in any order; the output updates as you go.