Paste your YouTube description and tags to see the character counts against YouTube’s limits, a preview of what shows before “Show more”, and quick fixes. It runs in your browser: no sign-up, nothing is sent anywhere.
YouTube description and tag limits
| Field | Limit | Notes |
|---|---|---|
| Description | 5,000 characters | Only the first ~150 characters show before “Show more”, so lead with your keyword and a hook. |
| Tags | 500 characters total | Commas count, and multi-word tags are counted with quotation marks, so this checker adds those to stay safe. |
| Hashtags | 15 per video | Go over 15 and YouTube ignores them all. Up to 3 appear above the title. |
| Title | 100 characters | Check yours with the YouTube title checker. |
How to write a better description
- Put your main keyword and a clear promise in the first sentence.
- Add timestamps and links after the opening lines.
- Keep tags relevant: they matter far less than your title, thumbnail and description.
See the full guides: how to write a YouTube description and how to add YouTube tags.
Free AI tools for the rest of your video
- TitleCraft – free AI YouTube title generator
- DescriptionCraft – free YouTube description generator
- TagCraft – free YouTube tag generator
Frequently asked questions
What is the YouTube description limit?
5,000 characters. Only the first 100 to 125 characters show before Show more, so put your hook and key link first.
What is the YouTube tag limit?
500 characters in total across all tags. Tags with spaces count their quotation marks.
Is my text stored?
No. The counter runs in your browser and nothing is sent anywhere.