Enter the main keyword, pick search variations such as tutorial or how to, and add any extra keywords. The generator returns a comma-separated tag list ready to paste into YouTube Studio and counts it the way Studio does: sourdough bread plus sourdough bread tutorial uses 44 of the 500 characters.
YouTube Studio gives every video a single tags box capped at 500 characters, and it counts more than the letters: a tag with a space in it is stored in quotes, and each comma counts too. Creators who paste a long list often hit the cap without knowing which tags were cut. This generator builds variations of your main keyword, merges in extra phrases, removes duplicates regardless of capital letters, and stops adding tags before the list would pass the limit. The table shows what each tag costs. YouTube itself says tags play a small part in discovery compared with the title, thumbnail and description, so treat them mainly as a way to catch common misspellings and close variants.
Use the phrase people would search, such as sourdough bread.
Tick chips like how to, tutorial or review to add common search phrasings of the keyword.
List related phrases or misspellings, separated by commas or new lines.
Paste the Tags to paste line into the Tags field in YouTube Studio and check the characters left.
Result Tags: 2
Tags to paste: sourdough bread, sourdough bread tutorial
Characters used (of 500): 44
Characters left: 456
Two multi-word tags use 44 of the 500 characters once the quotes and the comma are counted.
Result Tags: 4
Tags to paste: knit, how to knit, knit tips, knitting patterns
Characters used (of 500): 50
Characters left: 450
The repeated keyword Knit is dropped as a duplicate, leaving four tags in 50 characters.
characters = Σ tag length + 2 × (tags with a space) + (number of tags − 1)
tag length2tags − 1Each keyword is lowercased, stripped of commas, angle brackets, quotes and hash signs, and trimmed. The main keyword comes first, then one variation per chosen chip, then your extra keywords. A tag already in the list is skipped, and a tag that would push the total past 500 is left out with a warning.
The tags field holds 500 characters in total. Commas between tags count, and a tag containing a space counts two extra characters for the quotes YouTube wraps around it.
YouTube describes tags as having a minimal role in discovery. They are most useful when the keyword is often misspelled or has a common alternative name.
Either it duplicated a tag already in the list, ignoring capitals, or adding it would have passed the 500-character limit. A warning says how many were left out for length.
YouTube treats tags without regard to case, so lowercasing lets the generator catch duplicates such as Knit and knit and spend characters only once.
Yes. Arabic, accented and other scripts are kept as typed; only commas, quotes, angle brackets and hash signs are removed because Studio rejects or splits on them.
There is no fixed number. Five to fifteen focused tags covering the main phrase, a few variations and common misspellings is typical, well inside the limit.
Using this tool in an assignment, article or report? Copy a citation, or a link for your website.
Tools Directory Editorial Team. (2026, October 10). YouTube Tag Generator. Tools Directory. Retrieved October 27, 2026, from https://tools.milunir.com/social-media/youtube-tools/youtube-tag-generator/
Tools Directory Editorial Team. “YouTube Tag Generator.” Tools Directory, 10 Oct. 2026, https://tools.milunir.com/social-media/youtube-tools/youtube-tag-generator/. Accessed 27 Oct. 2026.
Tools Directory Editorial Team. “YouTube Tag Generator.” Tools Directory. Last modified October 10, 2026. Accessed October 27, 2026. https://tools.milunir.com/social-media/youtube-tools/youtube-tag-generator/.
<a href="https://tools.milunir.com/social-media/youtube-tools/youtube-tag-generator/">YouTube Tag Generator – Tools Directory</a>