AI YouTube Description Generator

An AI YouTube description generator writes the text that sits under a video, from the title and a short summary of what happens in it. You add the keywords you want covered and any links, and a language model drafts a complete description ready to paste into YouTube Studio.

The description does two jobs. The first two lines show before the "show more" fold, so they decide whether a viewer reads on, and search uses the whole text to understand the video. Writing a good one for every upload is tedious, so many creators leave it thin. This tool asks the model for a fixed structure: two opening lines that include the main keyword, a fuller summary, a chapter list with [00:00] placeholders, the links you gave, three to five hashtags and a call to subscribe. The timestamps are placeholders on purpose: the model has not watched your video, so you fill in the real times.

The model runs on the Toolz server. Your title and summary are sent over HTTPS, the server builds the prompt and runs Gemma 3 1B, a small open model from Google, with Ollama, and the description streams back as it is written. Your title, summary and affiliate links are used to write the reply and then discarded: they are not stored or logged, not used to train any model, and not sent to any third-party AI company.

There are limits. A 1B model can add a detail that is not in your summary, so read the draft before publishing. It cannot see your video, your analytics or what ranks in search, and it does not guarantee any ranking. The summary field takes up to 8,000 characters.

It is free, with no signup, within about 20 runs per 10 minutes. The alternatives are a saved template you fill in by hand, writing from scratch, or a general AI chatbot. For the other parts of the upload, the YouTube title and tag generators run on the same server model.