Hashtag Counter
Paste your caption to count hashtags and check platform limits — Instagram, LinkedIn, X, TikTok, Mastodon and Bluesky.
Next step
Your tags are counted. Now they have to go somewhere.
Write the caption once in BarlaPost and publish it to every account at the same time, adjusting tags per platform before it goes out.
Free to start. No card, no trial timer.
Free online hashtag counter for social media managers and creators. Paste your caption to count every #hashtag in real time and check whether you're within Instagram's 30-tag hard limit, LinkedIn's recommended 5, X's recommended 2, and more — no account, no ads, no data sent to any server. Built by BarlaPost, a cross-platform social media scheduling app.
Hashtag limits by platform
What is a hashtag counter?
A hashtag counter scans your caption and counts every word that starts with #. It lets you check your total before posting so you don't accidentally exceed a platform's limit or go over the recommended number — especially useful when cross-posting the same caption to Instagram, LinkedIn and X at once.
Is this tool free?
Yes — completely free. No account, no sign-up, no ads. Paste your caption and the count updates instantly in your browser. Nothing is sent to any server.
How many hashtags can you use on Instagram?
Instagram allows a maximum of 30 hashtags per post. Going over this limit causes the post to fail entirely — not just silently truncate. Most creators get better results with 5–10 highly relevant hashtags rather than the full 30.
How many hashtags should you use on LinkedIn?
LinkedIn recommends 3–5 hashtags per post. There is no hard cap, but using more than 5 can look spammy and may reduce the post's organic reach in the feed algorithm.
How many hashtags should you use on X (Twitter)?
X recommends no more than 2 hashtags per post. Each hashtag eats into your 280-character limit and studies show 1–2 targeted tags drive better engagement than a longer string of them.
How many hashtags can you use on TikTok?
TikTok has no hard hashtag limit, but the total caption is capped at 2,200 characters. Best practice is 3–5 hashtags — one broad trending tag and 2–3 niche ones that match the video's content.
Do hashtags work on Bluesky and Mastodon?
Yes. Bluesky and Mastodon both support clickable hashtags. Mastodon's local search relies on them heavily. A few relevant tags are enough — there's no benefit to stacking them on either platform.
Can I use the same hashtags on every platform?
You can, but the ideal count differs. Instagram supports up to 30; X works best with 1–2. Cross-posting apps like BarlaPost let you write one caption and adjust hashtags per platform before publishing to all of them at once.
What is the Instagram hashtag limit?
Instagram's hard limit is 30 hashtags per post (and 10 per comment). If you include more than 30, the post fails to publish. The algorithm currently favours posts with 3–10 relevant hashtags over those that use all 30.
Does the number of hashtags affect reach?
Yes, especially on Instagram and LinkedIn. Using irrelevant or overly broad hashtags can limit distribution. The consensus among social media professionals is to use fewer, more targeted hashtags — typically 5–10 on Instagram and 3–5 on LinkedIn — rather than maxing out every slot.
Are hashtags still effective in 2025?
Yes — though their role varies by platform. On Instagram, hashtags remain a discovery mechanism for non-followers. On LinkedIn they help surface content in topic feeds. On Mastodon and Bluesky they power search and trending. On X their impact on reach is less clear, but they still categorise posts for search. The key is relevance: one precise hashtag outperforms ten generic ones.