This YouTube script generator is for creators who can plan a video in their head and then lose an hour in front of an empty document. You have the topic, the thumbnail idea and a few bullet points, but a long form video needs a running order, a hook that survives the first thirty seconds and lines you can say out loud without reading them twice.
You give it the topic, the length you are aiming for, who watches you and what you want the viewer to do at the end. It returns a full script: an opening hook that states the promise in one line, a body split into timed segments, the narration written in your own register, b-roll and on-screen text notes beside the lines they belong to, and a close that sets up the next video. It marks any segment where the pace drops or the hook has not been paid off yet, so you cut in the script instead of in the edit.
The same file works in Claude, ChatGPT and Gemini. Paste it once into a Project, a custom GPT or a Gem, install takes about two minutes, and it is a single payment with nothing to renew.