Free tools · Hashtags Hashtag counter
Hashtag counter
and generator.
Count your hashtags, stay under the platform limit, and spin up fresh tag ideas from any keyword.
Counter
Count, check and generate
How the hashtag counter works
Pick your platform and paste in your caption. The counter finds every hashtag, tells you how many you have used, removes duplicates and highlights anything past the recommended count for that network. Then use the generator to top up your list with related tags from a keyword.
How many hashtags per platform
- Instagram: up to 30 allowed, 3 to 8 relevant tags recommended.
- TikTok: 3 to 5, mixing one broad and a few specific tags.
- X (Twitter): 1 to 3, woven into the post.
- LinkedIn: 3 to 5 professional, topic-level tags.
- Threads and Facebook: a small handful of focused tags.
Tips for hashtags that actually help
- Mix sizes: pair a few large tags with smaller, niche ones you can rank in.
- Stay relevant: tags should describe the post, not chase unrelated trends.
- Avoid banned or spammy tags that can quietly suppress reach.
- Save sets you reuse. PostSider lets you store hashtag snippets and drop them into any post in one click.
FAQ
Hashtags, answered.
How many hashtags should I use?
It depends on the platform. Instagram allows up to 30 but most accounts do best with 3 to 8 relevant tags. TikTok works well with 3 to 5. X and Threads favour 1 to 3. LinkedIn does best with 3 to 5. More is not better. A few relevant hashtags beat a wall of generic ones.
What is the hashtag limit on each platform?
Instagram caps a post at 30 hashtags. TikTok captions share a character limit with the text, so tags compete for space. X allows hashtags within the 280 character post. LinkedIn has no hard cap but 3 to 5 is the sweet spot. This tool flags when you go over the recommended count for the platform you pick.
Does this tool generate hashtags automatically?
Yes. Type a keyword or topic and it builds a list of related hashtag variations and popular formats you can copy straight into your post. It runs entirely in your browser, so nothing you type is uploaded anywhere.
Do hashtags still work in 2026?
They help discovery and categorisation, but they are not magic. Treat hashtags as one signal that tells the platform what your content is about. A handful of specific, relevant tags outperforms a long list of broad ones.