YouTube

YouTube Tags Limit

Quick Answer

YouTube's video metadata API lists a 500-character maximum for the video tags list. Commas count toward the limit, and tags with spaces are handled differently for character counting, so keep tags focused and readable.

Quick Reference

Platform: YouTube
Category: Social Media
Topic: Video tags limit
API tags maximum: 500 characters
Separator: tags are a list; commas count toward character limit
Safer use: a short set of relevant variants
Last checked: July 2026

Prepare in one place

Publish Action

Check if your YouTube tags are separated, readable, and not overstuffed.

Check YouTube Tags with Publish View Templates

Use one preparation flow for sizes, titles, descriptions, keywords, and checklists instead of switching between separate tools.

Important Notes

Tags are not a place to paste every possible keyword.
Natural title, thumbnail, description, and viewer satisfaction matter more than tag stuffing.
Use tags to clarify spelling variants or closely related terms.

Keyword Mistake Examples

Correct:

youtube thumbnail, thumbnail size, video thumbnail, 16:9 thumbnail

Wrong:

youtubethumbnailthumbnailsizevideothumbnail16x9thumbnail
youtube thumbnail thumbnail thumbnail thumbnail thumbnail
etsy, amazon, tiktok, cooking, travel, finance, music, unrelated keywords

Publish Action

Use Dokuntag Publish to separate keyword phrases correctly and remove repeated or unrelated tags.