YouTube Description Generator
Assemble a best-practice YouTube description: hook line, summary, key points, chapters, links and hashtags, with a live counter against the 5,000-character limit. Free, runs entirely in your browser.
Chapters need a 0:00 start, at least 3 entries, and 10+ seconds each for YouTube to render them.
YouTube shows about the first 125 characters in search and 100 to 150 before Show more. This generator puts your title and summary first for that reason.
What a good YouTube description looks like
YouTube descriptions do three jobs: pitch the click in search (the first 125 characters), tell the algorithm what the video covers, and route viewers to your links and chapters. The structure this tool assembles follows that order:
- Hook line: the video's promise, keyword included, in the first sentence.
- Summary: one or two sentences expanding on what the viewer gets.
- Key points: a scannable list of what the video covers.
- Chapters: timestamps that let viewers jump, starting at 0:00.
- Links: labeled, so viewers know why they should click.
- Hashtags: three at most; only the first three render above your title.
Keep the total well under the 5,000-character limit: long walls of text get skipped, and YouTube truncates display long before the cap. Edit the output before publishing; a description that reads like a person wrote it outperforms a template every time.
Frequently asked questions
What is the YouTube description character limit?
5,000 characters. Only the first 100 to 150 characters show before the Show more button, and roughly the first 125 characters can appear in search snippets, so put the key information and main keyword first.
Do YouTube descriptions help videos rank?
Yes, modestly. YouTube uses the description to understand what a video is about, and a clear keyword-relevant description helps it surface in YouTube and Google search. Watch time and click-through rate matter far more, so descriptions support ranking rather than drive it.
What should the first 125 characters of a YouTube description say?
State what the video delivers, using the main keyword naturally. That opening shows in search results and above the Show more fold, so it should work as a one-line pitch, not as boilerplate or a list of links.
How many hashtags should a YouTube description have?
Three or fewer. YouTube shows only the first three hashtags above the video title, and a video with more than 60 hashtags is ignored by the hashtag system entirely.
How do YouTube chapters work?
List timestamps in the description starting at 0:00, one per line as MM:SS followed by a label. You need at least three chapters, each at least 10 seconds long, for YouTube to render them on the progress bar.
Is this YouTube description generator free?
Yes. Free, no sign-up, and everything runs locally in your browser. Nothing you type is uploaded.