Free AI YouTube Description Generator

Write an SEO-optimized YouTube description from your notes

Paste your notes, bullet points, transcript excerpt, or working script into this free YouTube video description generator. The AI crafts a well-structured, SEO-ready YouTube description formatted with your primary keyword in the opening lines, clean bullet points, clickable chapters, and relevant hashtags.

Why YouTube descriptions are essential for SEO

YouTube's guidelines for video descriptions emphasize how metadata influences video discovery:

• The first 2 to 3 lines matter most. Viewers and search algorithms read the first 150 characters before the "Show more" fold. Your primary keyword and core topic must appear right here.
• Reinforces search keywords. Featuring your target keywords in both your title and description signals topic authority to YouTube's search and recommendation algorithms.
• Improves viewer retention. Chapters break longer videos into digestible sections, making it easier for viewers to navigate, re-watch, and share specific moments.
• Powers external Google search indexing. Google frequently indexes YouTube descriptions to match video results with web search queries.

The structured format you get

Section	What it includes	Character guideline
Opening Hook	1-2 compelling sentences summarizing the video with your primary keyword	~150 characters
Video Overview	A short paragraph detailing what viewers will learn or experience	~200 - 400 characters
In this video	3 to 6 bullet points detailing specific takeaways from your notes	Concise list
Chapters (Timestamps)	Exact timestamps copied from your notes (0:00 Intro, etc.)	Ascending order
Call to Action (CTA)	A natural invitation to subscribe, like, or comment	1 sentence
Hashtags	3 targeted hashtags placed cleanly at the bottom	#NoSpaces

Complete YouTube description example (copy-and-paste template)

Here is a full YouTube description template illustrating the optimal structure:

Learn how to make a sourdough starter from scratch in 7 days, using only flour and water. Perfect for beginners.

In this beginner baking guide, we walk through each day of the fermentation process: flour ratios, feeding schedules, and how to use the float test to know your starter is ready to bake bread.

In this video:
- What flour and water to use for best results
- Step-by-step daily feeding schedule
- How to know when your sourdough starter is ready
- Common mistakes to avoid (chlorinated water, temperature)

Chapters:
0:00 Intro
0:45 Day 1: Mixing flour and water
2:10 Days 2 to 6: Daily feeding routine
5:30 Day 7: The float test and first bake

What bread are you baking first? Let me know in the comments below! Don't forget to subscribe for more sourdough tutorials.

Helpful Resources:
- Sourdough Recipe: [add link]
- Baking Tools Used: [add link]

#sourdough #sourdoughstarter #breadbaking

YouTube Shorts description tips

Shorts viewers rarely expand the description, but YouTube's algorithm still crawls it. When you select YouTube Shorts, the generator writes 1 to 3 crisp sentences (150 to 400 characters) with your main keyword placed in sentence one.

Chapters done right

YouTube's chapter specifications require that the first timestamp begins at 0:00, that you provide at least three timestamps in ascending order, and that each chapter spans at least 10 seconds. The generator only uses timestamps you provide and never hallucinates fake chapter times.

How to use YouTube Studio Upload Defaults

For repetitive text such as social media profiles, gear lists, affiliate disclaimers, and channel links, set up Upload Defaults once in YouTube Studio:

1. Go to studio.youtube.com and click Settings (gear icon).
2. Click Upload defaults, then select the Basic info tab.
3. Paste your boilerplate links and disclosures into the Description box.
4. Save your changes. Now every newly uploaded video automatically includes your template.

Next steps

Complete your video metadata: choose a high-CTR title with the YouTube title generator and generate matching YouTube tags. Your input details remain saved across all three tools for instant workflow speed.