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Curiosity Diaries

YouTube Title & Description Checker

Length limits, previews and SEO tips.

  • 100% free
  • No sign-up
  • Runs in your browser

See your title the way viewers will

YouTube allows 100 characters in a title, but only around 70 show in search before it's cut off. The first line of the description is what appears before "…more", so it needs to hook people too.

Type your title, description and tags to see live counters, a search-result preview and a checklist of common mistakes.

  1. 1

    Paste your draft

    Title, description and tags.

  2. 2

    Watch the meters

    Green is safe, amber may be truncated, red is over the limit.

  3. 3

    Tune and copy

    Move your hook and keywords to the front.

Frequently asked questions

How long should a YouTube title be?

Aim for under 70 characters so the whole title shows in search and suggested videos.

How are tags counted?

YouTube counts characters across all tags, plus commas between them, and tags containing spaces count two extra for quotation marks — up to 500 in total.

Which characters aren't allowed?

Angle brackets (< and >) are rejected in titles and descriptions.

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