How it works
What goes in and what comes out
You give your name or brand and, optionally, what you do and what you care about. An AI model (Llama 3.1 8B, run on Cloudflare Workers AI) writes four different YouTube channel descriptions in the tone, length and language (English or Vietnamese) you choose. Each draft has its own copy button, and "Write new drafts" asks again with the same brief.
The prompt describes how people write on YouTube: What the channel is about, who it is for, what kind of videos and how often (only if the brief says), and a reason to subscribe. Keywords early.
Length
YouTube allows up to 1,000 characters in a channel description (as of 2026). Each draft shows its count against that limit and is marked if it runs over, so you can trim it.
Short, Medium and Long aim for about 40–90, 80–160 and 160–400 characters, within any limit.
