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Hashtag Counter Validator

It counts the hashtags in a piece of text and validates them against each platform's rules: Instagram (30 max on posts, 10 on Stories), LinkedIn (3 to 5 recommended), TikTok (no hard cap, 3 to 5 best), X (any number but 1 to 2 typical), Threads (1 max), and Pinterest (deprioritiz

Social Media Tools

It counts the hashtags in a piece of text and validates them against each platform's rules: Instagram (30 max on posts, 10 on Stories), LinkedIn (3 to 5 recommended), TikTok (no hard cap, 3 to 5 best), X (any number but 1 to 2 typical), Threads (1 max), and Pinterest (deprioritiz

This free Hashtag Counter Validator from KX Toolkit is part of our all-in-one online toolkit. It runs entirely in your browser, so your data never leaves your device for client-side operations. 100% free, forever - no paywall, no credit card, no trial.

How to use the Hashtag Counter Validator

  1. Pick the platform you're posting to.
  2. Paste or write your copy.
  3. Run the tool - it shows the count, suggestions or formatted text.
  4. Copy the result and paste it into the platform composer.

What you can do with the Hashtag Counter Validator

  • Hit Twitter's 280-character limit while keeping links intact.
  • Generate relevant hashtags for Instagram and TikTok.
  • Turn plain text into Unicode bold/italic for LinkedIn posts.
  • Find the right caption length for each platform.

Why use KX Toolkit's Hashtag Counter Validator

  • Browser-based: Works on Windows, macOS, Linux, iOS and Android - no install, no extension.
  • Privacy-first: Client-side tools never upload your data; server-side tools delete files right after processing.
  • Mobile-friendly: Full feature parity on phones and tablets - not a stripped-down view.
  • Fast: Optimised for instant feedback. No artificial waiting screens, no email-gated downloads.
  • One hub for everything: 300+ tools across SEO, text, image, PDF, code, color, calculators and more - skip switching between sites.

Tips for the best results

Schedule batches of posts using the character counter side-by-side with your scheduling tool - saves a lot of editing later.

Related Social Media Tools

If you find this tool useful, explore the full Social Media Tools collection or browse our complete tool directory. KX Toolkit is built for marketers, developers, designers, students and anyone who needs a quick utility without signing up for yet another SaaS.

What does a hashtag counter validator do?
It counts the hashtags in a piece of text and validates them against each platform's rules: Instagram (30 max on posts, 10 on Stories), LinkedIn (3 to 5 recommended), TikTok (no hard cap, 3 to 5 best), X (any number but 1 to 2 typical), Threads (1 max), and Pinterest (deprioritized). It flags banned, broken, or invisible characters too.
Are there banned hashtags I should avoid?
Yes. Each platform maintains a list of "shadowbanned" hashtags (often related to spam, adult content, or community-flagged terms). Posting them can suppress reach. Reputable validators check your tags against current shadowban lists. When in doubt, search a hashtag inside the platform: if recent posts are missing or activity looks frozen, treat it as banned.
How many hashtags should I use per platform?
Instagram: 3 to 5 focused tags (per platform guidance). TikTok: 3 to 5 tags blended with trending sounds. LinkedIn: 3 to 5 specific industry tags. X: 1 to 2 relevant tags. Threads: 1 tag (limit). Pinterest: 0 to 3, descriptive keywords matter more. Facebook: 1 to 2.
Why do my hashtags sometimes appear broken?
Common breakers include accented characters in some platforms, punctuation immediately after a hashtag (#hello,world), special characters like dashes or apostrophes, and emoji embedded mid-tag. A validator highlights tags that contain illegal characters or that exceed per-tag character limits (most platforms allow up to 100 characters per hashtag).
Can I reuse the same hashtag set on every post?
Repeating identical hashtag blocks across posts can trigger Instagram's spam detection and reduce reach over time. Vary at least 30% of your tags per post and tailor a portion to the specific content. Tools that suggest variant mixes save time while keeping your tagging fresh.
Do hashtag counts in captions and first comments work the same?
On Instagram, hashtags in the first comment count toward the same 30-tag cap as caption hashtags and are weighted equally for discovery. The choice is mostly cosmetic. Other platforms (LinkedIn, X, TikTok) only meaningfully recognize hashtags in the post body itself, not in comments.

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