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YouTube Tag Extractor
See the hidden tags, hashtags, and stats of any YouTube video. Copy competitor tags in one click.
This tiny magnetic blob could change how we treat brain tumors forever...
Veritasium · Jun 18, 2026
Thumbnails, embed code & more tools →- 8.7M
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Tags (11 tags · 110/500 characters)
Click a tag to copy it. Green tags also appear in the title (3 of 11), which is where keywords count most.
Title (73/100 characters)
This tiny magnetic blob could change how we treat brain tumors forever...
Description (848/5,000 characters)
Scientists have developed a new way to provide treatment for brain tumours. Currently we use chemotherapy, but that's like throwing a grenade at a mosquito, you end up damaging a lot more than you mean to. This magnetic blob will help change that. References: Microrobots: https://www.science.org/stoken/author-tokens/ST-3054/full https://www.nature.com/articles/d41586-025-03754-6 https://www.washingtonpost.com/science/2025/11/19/robot-drugs-side-effects-magnets/ Catheters: https://www.science.org/doi/full/10.1126/scirobotics.adh0298 Telesurgery: https://www.science.org/doi/10.1126/scirobotics.ado3187 https://www.science.org/doi/full/10.1126/scirobotics.adq0192 Electromagnetic Navigation Systems: https://advanced.onlinelibrary.wiley.com/doi/10.1002/adma.202310701 Magnetic Levitation: https://www.youtube.com/watch?v=WT8129liuQc
Frequently Asked Questions
Where do YouTube tags come from?
Tags are keywords the creator adds when uploading. They are hidden on the YouTube page, but the official YouTube Data API returns them, which is what this tool uses.
Do tags still matter for YouTube SEO?
Tags play a small role. YouTube says they mostly help with common misspellings. The title, description, and thumbnail matter far more, but competitor tags are still a quick way to discover keyword ideas.
What is the tag character limit?
YouTube allows up to 500 characters of tags per video, counted including the commas between tags.
Why does a video show no tags?
Many creators leave tags empty. Private and deleted videos cannot be looked up at all.
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