What it fixes
| You paste | You get | Why |
|---|---|---|
| skincare routine | #skincareroutine | Hashtags stop at the first space |
| #SkinCare #skincare | #SkinCare | Hashtags aren't case-sensitive, so it's a duplicate |
| morning-routine | #morningroutine | Hyphens and punctuation end the tag |
| vitamin c serum (CamelCase) | #VitaminCSerum | Easier to read, and screen readers say the words |
How to use it
- 1
Paste your list
From notes, a spreadsheet, an old caption. Any separators.
- 2
Choose how spaces work
Join “vitamin c serum” into one tag, or split it into three.
- 3
Pick case and separator
Spaces for a caption, new lines for a notes file.
- 4
Cap it
5 for Instagram, 60 for YouTube, or no limit.
- 5
Copy
Paste into your caption or the caption counter to check the length.
Worked example
Input: skincare, #SkinCare #vitamin c serum / #glowingskin #skincare routine, #GlowingSkin, morning-routine
Output (deduped, joined, kept as typed): #skincare #vitamincserum #glowingskin #skincareroutine #morningroutine
7 tags found, 2 duplicates removed.
Sources
Questions
How many hashtags should I use on Instagram?
Plan for five. In December 2025 Instagram said it would gradually limit captions to five hashtags per post or reel; its Graph API documentation still lists 30.
How many hashtags can a YouTube video have?
YouTube ignores every hashtag on a video that has more than 60, per YouTube Help, and over-tagging can get a video removed from search.
Are hashtags case-sensitive?
No. #SkinCare and #skincare are the same tag, which is why the formatter treats them as duplicates.
Why CamelCase hashtags?
#VitaminCSerum is quicker to read than #vitamincserum, and screen readers can say the separate words.
Can hashtags have spaces or emoji?
Spaces and punctuation end a hashtag, so they're removed. Letters, numbers and underscores are kept.