Henji turns your half-formed thoughts into a finished reply that sounds like you — not a generic AI. Most AI tools think for you and hand back text in their voice, so you rewrite it anyway. Henji is the opposite: you keep the thinking, Henji just handles the writing. Select a message, drop a few keywords, and get a reply in your tone — ready to send. The more you use it, the more it learns your phrasing, your rhythm, your emoji habits. Starts with Slack. Built for anyone drowning in replies.