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Know These Character Limits Before You Draft Your Next Social Post

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Published on September 8, 2025

As you grow your business on social media, it’s important to stay aware of the unique character limits on each platform. Every character counts when talking to your target audience online, so you need to make sure that your copy fits the limit and still delivers a clear message.

Below, I’ve identified the social media counts on commonly used social media platforms, helping your business effectively plan future posts.

What Is Each Social Media’s Character Count?

The choices below represent the most popular social media platforms:

Social Media Platform	Character Limit
Facebook	•Posts: 63,206 characters •Business page intro: 255 characters
YouTube	•Video titles: 100 characters •Video description: 5,000 characters •Channel description: 1,000 characters
Instagram	•Post caption: 2,200 characters •Bio: 150 characters •Direct messages: 1,000 characters
TikTok	•Video title: 90 characters •Video captions: 4,000 characters •Bio: 80 characters
Reddit	•Post titles: 300 characters •Posts: 40,000 characters
Pinterest	•Pin titles: 100 characters •Pin descriptions: 500 characters •Bio: 500 characters
X	•Posts: 280 characters (25,000 with premium account) •Bio: 160 characters
Threads	•Posts: 500 characters (10,000 with text attachment) •Bio: 150 characters
LinkedIn	•Posts: 3000 characters •Articles: 125,000 characters •Business name: 100 characters •Business page overview: 2,000 characters •Business page tagline: 120 characters
Bluesky	•Posts: 300 characters

You’ll know when you’ve reached the character limit on each platform, since you won’t be able to add any more content. You might be cut off mid-sentence, or you might be able to view a character count that shows you once you’ve hit that limit.

How Do I Draft an Effective Social Media Post?

As you write your social media drafts with these character limits in mind, the following advice will ensure that you’re creating content with strong messaging:

Create a strong hook: When you publish a post, most social media platforms will cut off the text after the first few sentences. So, your copy needs to lead with a strong hook that entices your audience to read on. You begin with an interesting statistic or fact, ask a question that your audience might be thinking, or share an industry hot take.
Stick to the point: Even if a platform like Facebook or LinkedIn has a large character limit, this doesn’t mean you should create a post that’s as long as possible. Instead, make sure that your post is long enough to deliver a clear, consistent message, and only contains key information that your audience will be interested in — don’t waffle!
Think about additional content: I don’t recommend sticking to text posts only, since creating engaging visual content like videos or infographics can enhance your copy and increase audience engagement.

💡 Top Tip!

If you’re thinking of using AI to write social posts, remember to specify the character limit you’d like the AI to adhere to in your prompt. For best results, add details about the tone of voice you want and the audience you’re targeting.

With a clearer understanding of each social media’s character limits, you can strategically create content that’s suitable for each platform and conveys clear messages to your customers.

Written by:

Holly Choules Writer

Holly Choules is a Writer at Website Builder Expert with a background in researching and crafting engaging content for digital platforms. In previous roles, she has demonstrated her wordsmith skills by writing for public facing brands in a range of industries. After gaining hands-on experience using leading website builders, like Wix and WordPress, she is now keen to share her findings through informative, easy-to-follow articles that help small business owners get online and grow their presence. Since joining the team in 2024 and transitioning into the tech sphere, Holly is passionate about applying her three years of content writing experience and upholding Website Builder Expert’s position as an authoritative source on website builders, ecommerce, and digital marketing.