How to Write A YouTube Description: Complete Guide with Examples

Want more views, better watch time, and clearer communication with your audience? Learning how to write a YouTube description the right way makes all of that easier. In this guide you'll find a step-by-step method, ready-made templates, examples, common mistakes and a quick checklist to start improving your video descriptions today.

What Is a YouTube Description?

A YouTube description is the block of text under your video that explains what the video is about, links to other content, and helps YouTube understand and categorize your video. It appears under the video player and can be up to 5,000 characters long.

Descriptions influence click-throughs, search rankings, watch time (via timestamps and context), and viewer actions (subscribes, visits, purchases). Think of it as the landing page copy for each video.

Step-by-Step Guide: How to Write a YouTube Description

1. Start with the Hook — First 1–2 Lines Matter

Write a compelling first 1–2 lines that summarize the video and include your main keyword ("how to write a YouTube description"). These lines appear above the "Show more" fold, so make them count.

Actionable tip: Keep the first 120–150 characters punchy — a quick benefit, question, or outcome.
2. Use Your Target Keyword Naturally

Place your target keyword in the opening lines and a couple more times naturally throughout the description. Avoid keyword stuffing — relevance and readability come first.

Actionable tip: Use variations and long-tail phrases like "YouTube description examples" or "best YouTube description format."
3. Expand with a Short Summary & Value Points

After the hook, add a 2–4 sentence summary that outlines what viewers will learn or gain. Use bullet points if you cover multiple tips or steps.

Actionable tip: Break complex ideas into quick bullets to improve skimming on mobile.
4. Add Timestamps (Chapters) for Longer Videos

Include timestamps in the format 00:00 to guide viewers to key sections. This improves user experience and can increase watch time by helping users jump to the most relevant parts.

Actionable tip: Start with 00:00 for the intro and add timestamps for every major section or topic.
5. Include Clear CTAs (Calls to Action)

Tell viewers what to do next—subscribe, like, comment, download a resource, or visit a link. Place the most important CTA early and repeat it near the bottom.

Actionable tip: Use short CTAs with benefits (e.g., "Subscribe for weekly editing tips").
6. Link to Resources, Socials, and Related Videos

Add links to your website, product pages, playlists, related videos, and social profiles. Use UTM parameters if you're tracking referral traffic.

Actionable tip: Put the most valuable link near the top so viewers don’t have to scroll.
7. Use Hashtags and Channel Keywords Wisely

YouTube allows hashtags (#) in the description and channel-level keywords in settings. Use up to 3 relevant hashtags to avoid penalization and add channel keywords in Creator Studio.

Actionable tip: Place hashtags at the end of the description or directly above the links to keep the copy tidy.
8. Optimize for Mobile and Search

Many viewers watch on mobile; ensure crucial info appears in the top 1–2 lines. Also, add synonyms and related keywords to help YouTube's algorithm understand context.

Actionable tip: Preview your description on mobile to ensure readability and that important links aren’t hidden below the fold.
9. Add Legal, Disclosure, and Credit Info

If your video includes sponsorships, music, or third-party materials, add required disclosures and credits. This keeps your channel compliant and transparent.

Actionable tip: Use a consistent "Credits & Disclosures" block near the bottom of all descriptions.
10. Proofread and Use Tools to Improve Quality

Check grammar, duplicate content, and originality before publishing. Tools like Rephrasely's AI writer and paraphraser can help draft and polish descriptions quickly.

Actionable tip: Run your description through a plagiarism checker and AI detector if you use generated text. Rephrasely offers a handy plagiarism checker and AI detector to validate content.

Template / Example

Simple Template (Copy & Paste)

Use this template to save time. Replace bracketed text with your content.

[Hook sentence with keyword — benefit or promise]

[Short summary: 1–3 sentences about what viewers will learn]

Chapters / Timestamps:
00:00 Intro
01:25 Main point 1
04:10 Main point 2

Get the free checklist: [link]

Related videos: [link to playlist] • Subscribe: [channel link]

Follow me: Instagram [link] • Twitter [link]

#YouTubeTips #VideoSEO

Full Example — "How to Write A YouTube Description" Video

Use this as a real-world example you can adapt to your niche.

Want more views and better watch time? In this video I show exactly how to write a YouTube description that ranks and converts.

You'll learn a step-by-step structure, what to include, and common mistakes to avoid so your descriptions start working for you instead of against you.

Chapters:
00:00 Intro — Why descriptions matter
01:10 The ideal structure
03:45 Timestamps and CTAs
06:30 Examples & Template

Download the free description template: https://example.com/template?utm_source=youtube&utm_medium=description

Watch the playlist on Video SEO: https://www.youtube.com/playlist?list=XXXXX

Subscribe for weekly video growth tips: https://www.youtube.com/channel/XXXXX?sub_confirmation=1

Follow me on Twitter: https://twitter.com/username

Music: [artist] — used under license

#YouTubeSEO #ContentCreator

If you'd like a fast first draft, try Rephrasely's AI writer to generate a description, then refine it with the humanizer tool for natural tone.

Common Mistakes to Avoid

Too long before the hook: Dumping a long wall of text means viewers won’t see the important lines. Fix: Put the hook and primary CTA in the top 120 characters.
Keyword stuffing: Repeating your keyword unnaturally hurts readability. Fix: Use semantic variations and focus on helpful context instead.
No timestamps for long videos: Viewers leave if they can’t find what they want. Fix: Add chapters for every main section and label them clearly.
Burying important links: Placing crucial links at the very bottom reduces clicks. Fix: Put your top link(s) near the top and duplicate them later if needed.
Copying descriptions from other channels: Duplicate content can harm discovery and looks unprofessional. Fix: Write unique descriptions and scan with a plagiarism checker before publishing.

Checklist — Quick Summary

Include your target keyword ("how to write a YouTube description") in the first 1–2 lines.
Keep the first 120–150 characters clear and compelling.
Add a concise 2–4 sentence summary and value bullet points.
Insert timestamps (00:00 format) for longer videos.
Use 1–3 strong CTAs (subscribe, website, playlist).
Link to top resources near the top; add socials and related videos.
Include legal disclosures and credits where necessary.
Optimize for mobile and preview before publishing.
Proofread and run checks with tools like Rephrasely’s plagiarism checker and AI detector.

Frequently Asked Questions

How long should a YouTube description be?

Descriptions can be up to 5,000 characters, but effective descriptions are concise at the top and expand below. Put key info and CTAs in the first 120–150 characters and use the rest for timestamps, links, and credits.

Where should I put links and timestamps?

Place the most important link(s) near the top so mobile viewers can click immediately. Put timestamps under a "Chapters" heading in the body. Repeat essential links further down if you’re including a long resource list.

Can I use AI to write my descriptions?

Yes — AI tools like Rephrasely’s AI writer and paraphraser can speed up drafting. Always humanize and proofread AI-generated text, and run it through an AI detector or plagiarism checker if you want extra assurance.

How to Write A YouTube Description: Complete Guide with Examples