How to Write a YouTube Description With AI (Free, SEO-Friendly)
A good YouTube description helps your video get found and gives viewers a reason to watch. Writing one that's engaging and includes the right keywords, every single video, is a chore. AI can draft it in minutes. This guide shows how to write a YouTube description with free AI.
📺 Try the AI Writer & Summarizer now — freeOpen →Descriptions help YouTube understand and recommend your video, and the first lines appear in search and under the title. A well-written, keyword-aware description improves discovery and click-through. AI helps you produce a solid one for every upload, fast.
What a strong description includes
Open with a compelling one or two lines that include your main keyword — these show in search and previews. Then a fuller summary of the video, relevant keywords woven in naturally, timestamps for longer videos, and your links and calls to action (subscribe, related videos, socials).
Give the AI the video's topic, key points and target keyword, and ask for an engaging, SEO-friendly description with a strong opening.
Make it discoverable and useful
- Front-load the main keyword in the first line or two.
- Write a genuine summary — don't keyword-stuff.
- Add timestamps for longer videos.
- Include your links and a call to action.
- Keep a consistent structure across videos.
Step-by-step
Common mistakes to avoid
Pro tips
Frequently asked questions
Is it free to write YouTube descriptions with AI?
Yes — the AI Writer is free with no account required.
Do descriptions help SEO?
Yes — they help YouTube understand and recommend your video, and the opening lines appear in search and previews.
How long should a description be?
Long enough to summarize the video and include keywords, timestamps and links — front-load the most important info.
Should I add timestamps?
Yes, for longer videos — they improve the viewer experience and can appear in search.
How do I avoid keyword-stuffing?
Write a genuine summary and weave keywords in naturally, rather than listing them.
AI helps you write engaging, SEO-friendly YouTube descriptions for every upload — front-loaded keywords, a real summary, timestamps and links. Give it the video's key points, add your calls to action, and improve your discovery. Free in your browser.