Compare two lists — find items in both, only in A, or only in B.
Find words that repeat too often in your text.
Encode and decode with ROT13, ROT47 or any Caesar shift, and try all shifts at once.
Count syllables in words and texts, in English or Portuguese.
Write Markdown with a toolbar and live preview, export to .md or HTML.
Join lines of copied text into one, keeping paragraphs if you want.
Bold the start of every word to make text easier to skim.
Donaldson R F