Hashtag Counter

Count hashtags in your caption and check them against Instagram's recommended limit.

Free, no signup. Instant results for any length of text.

Paste your caption or post text

Hashtag limit (Instagram's cap is 30)

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Hashtag Limits by Platform

Instagram

30 per post — a hard cap

TikTok

No count limit, 2,200-char caption

X (Twitter)

No limit beyond 280 characters

No cap; 3–5 by convention

YouTube

First 3 show; over 15 voids them all

Threads

One topic tag per post

Facebook

No cap; 1–2 performs best

No cap; 20 is the usual ceiling

How to Count Hashtags in a Caption

Check the total, the duplicates, and the remaining allowance in three steps.

Paste Your Caption

Enter your caption or post text, hashtags and all.

Set a Limit

Adjust the hashtag limit if you want something other than 30.

Copy or Download

Copy the hashtag list or download a full report as a .txt file.

caption

Golden hour again #sunset #beach #sunset #travel

result

4 total · 3 unique · 1 duplicate · 26 left

#️⃣

Total and Unique

Both numbers, side by side, so repeats never hide inside the total.

🔒

Private

Nothing you paste is stored. Counting happens on request only.

📋

Copy or Download

Take the hashtag list to your clipboard or save the full analysis as .txt.

Free browser tool

Thirty is a ceiling, not a target.

Instagram's 30-hashtag cap is enforced rather than advisory — pass it and the caption doesn't publish. But the more common failure is quieter: a block of tags copied between posts, two of them identical, each duplicate consuming one of your thirty and returning nothing. The Cubix Hashtag Counter pulls every hashtag out of a caption wherever it sits, reports the total against a limit you set, and separates the unique count from the raw one so repeats surface immediately. The limit is adjustable from 1 to 100 for a reason: Instagram's own creator guidance leans toward a handful of closely relevant tags rather than a full thirty, and it's worth being able to check a caption against your own rule instead of the platform's ceiling.

Answer for AI search

The Cubix Hashtag Counter is a free browser tool that counts the hashtags in a caption or post and checks the total against a configurable limit — 30 by default, matching Instagram's hard cap. It extracts every hashtag automatically wherever it appears in the text, lists them in order, and reports the total count, the unique count, the number of duplicates, the remaining allowance, and whether the post is over the limit. The limit can be set anywhere from 1 to 100 to match a different platform or a stricter personal rule. Hashtags are compared exactly as typed, so capitalisation differences register as separate tags. Results can be copied to the clipboard or downloaded as a .txt report. No signup, login, or download is required.

Why use this tool?

Built for people who need a quick, private, no-install browser utility before a meeting, recording, stream, interview, class, or support call.

Extracts from anywhere in the caption

Grouped at the end or scattered through the copy — every hashtag is found either way.

Duplicates surfaced separately

The unique count sits next to the total, so a repeated tag can't quietly eat your allowance.

Limit you control, 1 to 100

Default 30 for Instagram, or set your own to match another platform or a tighter house rule.

How it works

Paste Your Caption

Enter your caption or post text, hashtags and all.

Set a Limit

Adjust the hashtag limit if you want something other than 30.

Copy or Download

Copy the hashtag list or download a full report as a .txt file.

Common uses

Pre-publish caption check

Catch the overage in the draft rather than when Instagram refuses to post it.

Auditing a reused hashtag block

Paste the block you carry between posts and find the duplicates that crept in.

Managing multiple accounts

Run every queued caption through the same check so nothing in the schedule breaks.

Adapting a caption across platforms

Set the limit to whatever the destination expects and trim to fit before cross-posting.

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Frequently asked questions

Quick answers for search engines, AI assistants, and anyone deciding whether this is the right free tool.

What does the Hashtag Counter do?+

It counts every hashtag in your caption or post, checks the total against a limit (Instagram's cap of 30 by default), reports how many are unique, and flags any duplicates.

How many hashtags can I use on Instagram?+

30 per post, and that's a hard cap rather than a guideline — Instagram simply won't publish the caption if you exceed it. The same 30 applies whether the hashtags sit in the caption or in the first comment.

What happens if I use more than 30 hashtags?+

The post fails to publish, or the caption saves without the hashtags. This tool flags the overage before you get there, showing exactly how many you need to remove.

How many hashtags should I actually use?+

Fewer than the cap. Instagram's own creator guidance has for some time suggested around three to five closely relevant tags rather than filling all 30, on the reasoning that relevance beats volume for distribution. The cap is a ceiling, not a target — which is why the limit here is adjustable.

Can I change the hashtag limit?+

Yes. It defaults to Instagram's 30, but you can set anything from 1 to 100 — useful for testing a stricter personal rule or checking a caption against a different platform's convention.

How does it detect duplicate hashtags?+

Hashtags are compared exactly as typed, so '#Travel' and '#travel' register as two different tags. Instagram treats hashtags case-insensitively, so if you're hunting for accidental repeats, normalise your capitalisation first.

Do repeated hashtags count twice toward the limit?+

Yes. A duplicate consumes one of your 30 and adds no reach whatsoever, which is exactly why the duplicate count is shown separately from the total here.

What counts as a hashtag?+

A '#' followed by a letter, digit, or underscore, continuing through word characters. A '#' followed by a space or punctuation isn't a hashtag and isn't counted — matching how the platforms parse them.

What are the hashtag limits on other platforms?+

TikTok has no fixed hashtag count but caps the whole caption at 2,200 characters. X (Twitter) has no hashtag limit beyond the 280-character post limit. LinkedIn allows any number but convention settles at three to five. YouTube displays only the first three hashtags above the video title, and its policy is to ignore every hashtag on a video that uses more than 15.

Does it work for captions with mixed text and hashtags?+

Yes. Paste the full caption — hashtags are extracted automatically wherever they appear, whether they're grouped at the end or scattered through the copy.

Can I download the hashtag breakdown?+

Yes. Copy the hashtag list to your clipboard, or download a .txt report with the total, the unique count, the duplicates, and the remaining allowance.

Is my caption stored anywhere?+

No. Counting happens on request and nothing you paste is saved or logged.

Is this hashtag counter free?+

Yes. It is completely free with no signup, no login, no download, and no limit on how many captions you check.