Write a YouTube description from your video topic

Describe your video and get three full descriptions, each leading with your keyword in the first lines, summarizing what the video covers, and ending with a call to action. Add keywords, a tone, or chapter timestamps to shape them.

Generate YouTube Descriptions

Describe your video. Optionally add keywords, tone, or timestamps.

You get three full descriptions, each leading with your keyword. Generate, pick the one that fits your video, then copy and paste it under your upload.

How it works

Three descriptions in three steps

Describe your video and get three full descriptions written to read well and carry your keywords, ready to paste under your upload.

Step 1: Describe your video

Type what the video is about in a line or two. Optionally add keywords, pick a tone, and tick chapter timestamps for a longer upload.

Step 2: We write three drafts

Each draft opens with your keyword in the first lines, sums up what the video is about, lists the key points, and closes with a call to action and a few hashtags.

Step 3: Copy and paste

Pick the draft that fits, copy it, and paste it under your video. Swap in your real links and confirm the timestamps match your cuts.

Free to use No sign-up required Three options per run

Read your result

What you can learn from your descriptions

Read the three drafts side by side. They show which opening fits your video, which keywords to keep, and which lines read as filler.

What stands out

Read the first two lines first, since that is all viewers see before "show more". The draft whose opening states what the video delivers and names your keyword early is the one worth keeping.
Patterns

Notice which phrasings and keywords repeat across all three drafts. The terms that show up every time are the ones the model reads as central to your topic, so they belong in your title too.
Opportunities

A draft can surface a phrase or a related keyword you had not thought to include. The bullet list of what the video covers often points to chapters or follow-up videos worth making.
Weak spots

Watch for a draft that lists the same keyword too many times or makes a claim your video does not back up. Those read as filler to viewers and as stuffing to search.
Context

Judge each draft against the tone you picked and the kind of upload it is. A Short needs a tight opening with no timestamps; a long tutorial can carry chapters and a fuller summary.
What to ignore

Do not treat the sample links or exact timestamps as final. They are placeholders to replace with your real URLs and the actual time codes from your edit before you publish.

Why use it

What you can do with the description generator

It turns one line about your video into full descriptions that read naturally and put your keyword where search and viewers see it first.

Lead with the keyword that ranks

Each draft front-loads your main keyword in the opening lines, the part YouTube and Google read and viewers see before "show more". The rest fills in context without keyword stuffing.

Sample description 3 descriptions · 500-4500 chars

Want to know how to start a podcast in 2026? This guide breaks down every step to launch your show and reach a global audience... - Identifying your podcast niche and target audience.

#Podcast #HowToPodcast #StartAPodcast

Excerpt: hook and one bullet from sample 1 of 3

A complete description block

You get the full block: a summary, a bullet list of what the video covers, a call to action, and hashtags, with optional chapter timestamps for longer uploads.

Three angles to choose from

Every run returns three drafts with different openings and emphasis, so you can pick the one that matches your video instead of reworking a single take.

TRY SUBMAGIC FOR FREE

Edit shorts 10x faster with AI

99% caption accuracy

4.7/5 on G2 (80+)

48+ supported languages

4,000,000+ users

Toolkit

Keep optimizing with Submagic

Once the description is set, write the title, tags, and hashtags that carry the same keywords, and plan the next video to script.

FAQ

Questions about YouTube video descriptions

What is a YouTube video description?

It's the block of text under your video that tells viewers and search what the video covers. It usually holds a summary, links, keywords, and chapter timestamps, and it helps your video surface in YouTube and Google results.

How does this YouTube Description Generator work?

Describe your video topic, then optionally add keywords, a tone, and a request for chapter timestamps. The tool returns three ready-to-paste descriptions, each written to read naturally and carry your keywords.

What should I put in a YouTube video description?

Lead with one or two sentences that state what the video delivers and include your main keyword early. Add relevant links, a short call to action, and chapter timestamps for longer videos. The generator drafts this structure for you from your topic.

How long should a YouTube description be?

YouTube allows up to 5,000 characters, but only the first couple of lines (roughly 150 characters) show before "show more," so put the important context there. The generated descriptions stay within the limit, and each result shows its character count.

How do I write an SEO-optimized YouTube description?

Use the words people actually search for, place your primary keyword in the opening lines, and keep the writing readable rather than stuffed. Pass those terms into the Keywords field and the tool weaves them into phrasing instead of listing them.

Do chapter timestamps help SEO?

Timestamps create clickable chapters that can show up as key moments in search, and they keep longer videos easy to navigate. Tick "Include chapter timestamps" and the generator adds time-coded sections to the draft.

Can I edit the descriptions it generates?

Yes. Treat each result as a strong first draft. Copy the one closest to your video, then adjust links, swap in your exact phrasing, and confirm the timestamps match your actual cuts before you publish.

Does it work for Shorts and long-form videos?

Both. For a Short, skip timestamps and keep it tight. For a long-form upload, turn on chapter timestamps and add more keywords so the description reflects everything the video covers.

Is the YouTube Description Generator free?

Yes, it's free to use with no sign-up. Enter a topic, generate your descriptions, and copy the one you want.

Get Started

Start creating shorts that get more views, faster.

Get Started Now

Try for free

Write a YouTube description from your video topic

Turn a draft into your own description

Step 1: Generate a few

Step 2: Pick the one that fits

Step 3: Adapt and paste