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YouTube description preview

On the desktop watch page, YouTube shows the first three lines of your description before ...more, and blank lines count as lines. Most viewers never expand it, so those lines need to say what the video delivers. Paste your description to see exactly what survives, measured at YouTube's real layout width.

  • Your opening line is a good length to work as a summary.

Desktop watch page, before "...more"

12K views ยท 2 days ago

The line viewers read first

Three budget cameras, one week of real filming, and a clear winner for beginners.

On phones the description opens in a panel when viewers tap the title, so this first line is the one that has to earn the tap there too.

On desktop, three lines show before "...more", and blank lines count as lines. Measured at a 1920px window in October 2026; narrower windows wrap sooner. YouTube tests layouts often, so treat this as a close guide.

How to use it

  1. Paste your description, or edit the example.
  2. Read the desktop preview to see which lines show before ...more.
  3. Check the opening line on its own. It's what viewers read first on phones too.
  4. Fix anything flagged, such as a link first or going over 5,000 characters.

Questions

How much of a YouTube description shows before 'more'?

On desktop, three lines at the time we measured (October 2026, 1920px window). Blank lines count, so a gap after your first sentence uses up one of the three.

How long can a YouTube description be?

Up to 5,000 characters.

Should I put links at the top of the description?

Lead with a sentence about the video, then your most important link. A bare link as the very first line tells viewers nothing about what they're about to watch.

Does the description help my video get found?

It helps YouTube and viewers understand the video, especially the opening sentences. Write it for people, in plain words that match how they'd describe the topic.

Last updated 2026-10-14.

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