Name the video
Add the title and a line or two on what it covers. Paste the transcript if you have one — chapters come from it.
Free AI YouTube description generator
Write a full, search-friendly description for your video from its name and transcript or topic — with your keywords, tone and optional emojis. Free, no login.
How to generate a YouTube description
Set keywords and tone
List the search terms to include and pick a tone that matches your channel. Emojis are optional.
Copy and edit
The description appears in an editable box. Tweak the links and timestamps, copy it, and paste it into YouTube Studio.
YouTube SEO in mind
The first two lines carry the hook, since that's all YouTube shows before 'more', and your keywords appear naturally in the body.
Chapters from the transcript
Paste a transcript and the description includes a chapters list you can drop timestamps onto.
Your tone, your emojis
Casual, formal, dramatic, excited or humorous — and emojis only if you ask for them.
Frequently asked questions
You give it the video's name, what it's about and optionally the transcript and keywords. An AI model writes a description with a strong opening, a fuller overview, chapters where the transcript makes them clear, and a few hashtags.
Up to 5,000 characters. Only the first 100–150 characters show before the 'more' link, so the generator puts the hook there and the detail after it.
No. A topic is enough for a solid description. With the transcript you also get a chapters list and more specific wording.
Yes. The description lands in an editable box so you can add links, fix timestamps and adjust wording before copying it.
It's sent to the AI model once to generate your result and isn't stored by Tella. Nothing is published anywhere — copy what you like and close the page.
Tella is a screen recorder that edits your videos for you — Auto Cut removes the mistakes, Auto Zoom adds the zooms, and you share with a link. These free tools cover the small jobs around publishing a video.
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