Free tool

YouTube description generator

Type what your video is about and get a description you can paste: a strong first two lines, what the video covers, and hashtags.

Try
Free. No sign-up. 20 a day.

How to use it

  1. 01

    Describe your video

    One line about the topic. Add the main point if you have one.

  2. 02

    Get a description

    Two opening lines with your search phrase, a short list of what is covered, and three hashtags.

  3. 03

    Add your own links

    Replace the [TIMESTAMPS] and [LINKS] lines with your chapters and links, then paste it into YouTube.

How to write a description that works

The first two lines matter most. They show in search results and above the Show more fold, so say what the viewer gets and use the phrase they would search.

Add chapters. A list of timestamps starting at 0:00 turns into chapters on the video, which helps viewers jump to the part they want.

Put links below the opening lines, not above them. Your channel, anything you mention in the video, and what to watch next.

Use two or three hashtags at most. YouTube shows the first three above the title and ignores all of them if you add more than sixty.

Start from a video that will get watched

Inside Algrow you see the formats and subjects gaining views before you write a word.

A trending title format and its top videos

Trending title formats

The title shapes gaining views this week, with every video behind them.

A trending subject with its daily views and top videos

Trending subjects

The topics pulling views right now, and how fast they are growing.

Viral videos with views today, subject and title format

Viral videos by topic

Every video shows its views today, its subject and its title format.

Algrow

See what the best videos in your topic have in common

Algrow tracks millions of YouTube channels and videos every day, so you can see what is working and what to make next.

$1 for 3 days

Every research tool on any plan for $1. Cancel anytime. After that plans start at $25 a month.

A desktop app for Mac and Windows

YouTube with Algrow built in, and an AI agent beside it. Free with an Algrow account.

Runs on your own Claude plan

The agent uses the Claude plan you already pay for. We add no markup on top.

Questions

How long should a YouTube description be?

YouTube allows 5,000 characters. Most good descriptions use a few hundred: two strong lines, chapters and links.

Do descriptions help a video get found?

Yes, a little. YouTube reads the description to understand the video, and the first lines show in search results.

How do I add chapters?

List timestamps in the description starting with 0:00, at least three of them, each on its own line with a short label.

How many hashtags should I use?

Two or three. The first three show above your title. More than sixty and YouTube ignores them all.

Is the description generator free?

Yes, with no sign-up. There is a daily limit so everyone gets a turn.

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