Question 1

What does the caption length checker do?

Accepted Answer

As you type, it shows your character and word count and checks your caption against the limits for TikTok, Instagram, YouTube, X, Facebook, and LinkedIn — both the hard maximum and the point where each platform hides the rest behind a 'more' link.

Question 2

Is it free?

Accepted Answer

Yes, it's free, instant, and needs no sign-up. It runs in your browser, so your caption is never sent anywhere.

Question 3

Why does the visible cutoff matter more than the maximum?

Accepted Answer

Most platforms hide everything after the first 100 to 150 characters behind a 'more' link. Even if your caption fits the hard limit, the part that matters needs to land in those first few words, or most people will never read it.

Question 4

What are the caption limits for each platform?

Accepted Answer

Limits vary widely — for example, X allows 280 characters while Facebook allows tens of thousands. The tool shows the current limit for each platform live, so you don't have to memorize them.

Question 5

What happens if my caption is too long?

Accepted Answer

Platforms either truncate it behind a 'more' link or, if you exceed the hard maximum, won't let you post it. The checker flags both cases so you can trim before you publish.

Question 6

How can I write a stronger caption?

Accepted Answer

Front-load the most important words, keep it concise, and put your call-to-action where it will be seen. If you need help writing one, try our free Caption and CTA generator.

Question 7

How do I make the video for my caption?

Accepted Answer

GenFlik handles the hard part — turning your script into a finished talking-avatar video ad in minutes. Pair it with a tight caption and you're ready to post. Start free with credits included.

Free Caption Length Checker