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Hashtag Formatter

Turn a list of words or phrases into deduplicated, CamelCase hashtags, with a combined character-count check.

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Tool guide

What this tool does

Hashtag Formatter converts a plain list of words or phrases, one per line or comma-separated, into properly formatted CamelCase hashtags (spaces and punctuation stripped, since hashtags can’t contain them), deduplicating the result and showing the combined character count against common platform hashtag limits.

A hashtag can’t contain spaces or most punctuation, so turning a brainstormed list of topic phrases like "web design" and "small business" into proper hashtags means manually removing spaces and capitalising each word, repetitive for anything beyond a handful of tags.

This tool automates that: paste a list of phrases (one per line or comma-separated), and it CamelCases and hash-prefixes each one, removes duplicates, and shows you the combined character count so you can check it against a platform’s practical hashtag limits before posting.

How to use Hashtag Formatter

  1. Enter your phrases, one per line or separated by commas.
  2. Set a maximum number of hashtags to include if you want to cap the list.
  3. Review the generated hashtags and combined character count.
  4. Copy all hashtags at once.

Tips for better results

  • CamelCasing (capitalising the first letter of each word within a hashtag, like #SmallBusinessTips) makes multi-word hashtags readable, since hashtags themselves can’t contain spaces to separate the words visually.
  • Instagram technically allows up to 30 hashtags per post; using the full 30 isn’t always optimal for engagement, many creators find a smaller, more targeted set performs better, this is a strategy choice beyond what this tool enforces.
  • Duplicate phrases (even with different capitalisation or spacing in your original list) are automatically deduplicated in the final output.
  • All hashtag character counts still count toward whatever platform’s overall caption character limit applies, check the combined count here against that platform’s limit in the Character Counter tool if you’re close to it.

Common use cases

  • Quickly converting a brainstormed list of topic keywords into ready-to-paste hashtags.
  • Building a consistent hashtag set to reuse across multiple posts.
  • Checking how much of your caption’s character budget a planned hashtag set will consume.
  • Cleaning up an existing messy hashtag list by deduplicating and reformatting it consistently.

Common mistakes to avoid

  • Including punctuation-heavy phrases and expecting it to be preserved; hashtags strip anything that isn’t a letter, number or underscore, since those characters simply aren’t valid within a hashtag.
  • Not checking the combined hashtag character count against the specific platform’s overall caption limit, since hashtags count toward that total just like any other text.
  • Assuming more hashtags is always better; platform algorithms and audience engagement patterns vary, a focused, relevant set often performs better than the maximum allowed count.

Frequently asked questions

Why CamelCase instead of lowercase?

A hashtag has no spaces, so capitalising each word within it (CamelCase) is the standard way to keep a multi-word hashtag like #SmallBusinessTips readable at a glance.

Does this remove duplicate hashtags?

Yes, phrases that produce the same hashtag (even if entered with different spacing or capitalisation) are automatically deduplicated in the final list.

What characters get stripped from my phrases?

Anything that isn’t a letter, number or underscore, since those are the only characters a valid hashtag can contain on any major platform.

Is my phrase list uploaded anywhere?

No, hashtag generation happens entirely in your browser using plain string operations; nothing is transmitted anywhere.

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