Hashtag & Mention Counter — free online
You write a caption, sprinkle in some hashtags and a few @mentions, and then you wonder: is this too many? Instagram, X, and the rest each have their own caps, and going over can get a post hidden or rejected. We added a free tool that checks it for you — @Mention & Hashtag Counter — right in your browser.
What it does
Paste your caption and it instantly counts every hashtag and every @mention. Then it shows you, at a glance, which platform caps you've gone over — so you can trim before you post instead of finding out the hard way.
Nothing leaves your device
The whole thing runs inside your browser. Your caption is never uploaded and never saved anywhere. Close the tab and it's gone — nothing stays behind.
How to use it
- Open @Mention & Hashtag Counter.
- Paste your caption into the box.
- Read the counts and see which platform limits you're over, then fix your caption and post.
It's free with no limit. There are more small tools on the Apps page.