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AI Tool

YouTube Description Generator

Generate SEO-optimised YouTube video descriptions with timestamps, keywords, hashtags, and CTAs. Get more views with descriptions engineered for YouTube search.

How to use the YouTube Description Generator

  1. 1

    Enter your video title — this helps the AI understand the main topic.

  2. 2

    Describe what the video covers — key points, topics, and takeaways.

  3. 3

    Optionally add your channel name for branded CTAs and sign-offs.

  4. 4

    Toggle timestamp placeholders and CTA sections on or off.

  5. 5

    Click 'Generate description' and copy the result directly to YouTube.

Frequently Asked Questions

How long should a YouTube description be?

YouTube allows up to 5,000 characters in descriptions, but the ideal length is 200-500 words (1,000-3,000 characters). The first 125 characters are the most important — they appear in search results and before the 'Show more' button. Include your primary keyword in the first sentence, add timestamps for longer videos, and end with relevant hashtags (3-5 max).

Where should I put keywords in a YouTube description?

Place your primary keyword in the first sentence of the description. YouTube weighs the first 2-3 lines most heavily for search ranking. Naturally include secondary keywords throughout the body text. Add relevant hashtags with keywords at the end — YouTube displays up to 3 hashtags above the video title. Avoid keyword stuffing, which can trigger spam filters.

Do YouTube descriptions affect SEO?

Yes, YouTube descriptions directly impact video discoverability. YouTube's algorithm uses description text to understand video content, match search queries, and recommend videos. Well-optimised descriptions improve ranking in both YouTube search and Google video results. Descriptions also appear in Google search snippets, making them critical for click-through rates.

Need a website to link in your descriptions?

Canvas Builder generates production-ready HTML pages from a single prompt — perfect for landing pages linked from your YouTube channel.

Try Canvas Builder