AI YouTube Description Generator
Get a full YouTube description structured the way the platform displays it: a hook in the two lines visible before “Show more”, timestamped chapters, a summary, a CTA, and 5-8 relevant hashtags.
60 free generations per month. No credit card. Bring your own AI key.
Why creators use this
Front-loads the hook into the first two lines — the only part of a description anyone sees before clicking “Show more”.
Returns 4-6 timestamped chapters, which is what YouTube reads to build the chapter markers on the scrub bar.
Closes with 5-8 topic-relevant hashtags and a CTA sized for the description box, rather than a generic tag block.
How it works
Drop a YouTube URL. We grab the captions in seconds. Or paste any transcript directly.
Get your YouTube description in a single pass — plus 19 other platform-native formats.
Edit inline, regenerate any output, hit "Make more viral" for a stronger rewrite.
FAQ
How long should a YouTube description be?+
Around 250 words is what this tool targets — enough context for YouTube to understand the video's topic, short enough that viewers still reach the CTA and links at the bottom.
Does it generate chapters automatically?+
Yes — 4-6 chapters. If your transcript carries no timing data, they come back with 00:00-style placeholders you can adjust in a few seconds rather than writing from scratch.
Why does the first line matter so much?+
YouTube collapses the description after roughly two lines on both desktop and mobile. Everything below “Show more” is invisible to most viewers, so the hook has to be above it.
How many hashtags should a YouTube description have?+
Five to eight. YouTube displays the first three above the video title, and its own documentation states that a video with more than 15 hashtags has all of them ignored.
Get your YouTube Description Generator now
Plus 19 other platform-native formats from the same source — free.
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Other formats included with every project: YouTube title, YouTube description, SEO tags, LinkedIn post, Twitter / X thread, Blog article, TikTok caption, Instagram caption, Facebook post, YouTube Shorts caption and more.