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Social Media Character Counter

Count characters against 15 social network limits — X/Twitter, Instagram, TikTok, LinkedIn, YouTube, Threads and more — with X's weighted rules (URLs = 23, CJK = 2) and a thread estimate.

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This free social media character counter checks your text against 15 network limits at once — X/Twitter (280), Instagram, TikTok, LinkedIn, YouTube, Threads, Bluesky, Mastodon, Pinterest, Reddit and Discord. Pick your primary network for the remaining-characters readout and watch every platform at a glance. For X the count follows the official rules: a link is worth 23 characters and a CJK character (Chinese, Japanese, Korean) or emoji counts as 2 — so the effective limit drops to about 140 for those scripts.

How to use it

  1. Paste or type your post text.
  2. Choose your primary network (X, Instagram, LinkedIn…).
  3. Read the remaining characters and every platform's bar.
  4. Trim until you're under each limit you need.

Frequently asked questions

How many characters can you post on X/Twitter?

280 weighted characters in the Latin alphabet. CJK characters and emoji count as 2 (so ~140 for those scripts), and each link counts as 23. X Premium raises the limit to 25,000.

What is the Instagram caption limit?

2,200 characters for a caption and about 30 hashtags; the profile bio is capped at 150 characters.

Is the count accurate for every network?

X applies official weighting (links = 23, CJK/emoji = 2), which the tool mirrors. The other networks count by Unicode character, which is what the bars show.

What does Social Media Character Counter do?

Count characters against 15 social network limits — X/Twitter, Instagram, TikTok, LinkedIn, YouTube, Threads and more — with X's weighted rules (URLs = 23, CJK = 2) and a thread estimate.

What does it take into account?

It factors in URLs = 23, CJK = 2. Change any of them and the output follows immediately.

When would I actually use this?

Planning a post that fits: staying inside the character limit, exporting an image at the right size, and picking a slot when the audience is actually there.

What is the most common mistake?

Counting characters the way a text editor does. Emoji, accents and links are counted differently by each network — a link is often a fixed cost regardless of its real length.

How is Social Media Character Counter different from Social Media Image Size Guide?

They sit next to each other but answer different questions: Social Media Image Size Guide is the one to open when you need it to recommended image dimensions for Instagram, Facebook, X, YouTube, TikTok, LinkedIn and Pinterest, each flagged as documented by the platform or as a usage convention — plus a checker that tells you what your own image loses to the crop. Pick whichever matches what you're starting from — both are free.

Is there a tool for the next step?

Social Media Post Time Optimizer is the closest one after this: The conventional posting days for Instagram, Facebook, X, TikTok, LinkedIn, YouTube and six content niches, each with a cadence tip — flagged as a convention, not a measurement: replace it with what your own analytics say.

What else is worth having open alongside it?

Social post preview and Social image resizer — they come up in the same task often enough to be worth a second tab.

Further reading

All guides →
GuideCharacter Limits That Actually Bite: Code Units, Code Points and GraphemesA character is three different things at once. One emoji with a skin tone is 1 grapheme, 2 code points and 4 UTF-16 units. Every count in this guide was measured in Node, plus why an SMS drops from 160 to 70 and why VARCHAR(255) is not 255 of anything in particular.GuideSocial Image Sizes, and the One Crop That Survives EverywherePlatforms crop rather than letterbox, so an image is only safe if its subject sits inside the intersection of every ratio it will be shown at. That intersection has a closed form — the narrowest ratio divided by the widest — and it works out at 29.45% of the source for a realistic set. Geometry that does not expire, plus the pixel counts that do.ExplainerWhat Readability Scores Actually Measure (and the Three Things They Cannot See)Flesch Reading Ease and Flesch-Kincaid Grade Level count syllables and sentence length. Nothing else. Both formulas in full, one passage scored end to end, and the comma trick that buys 3.9 grade levels without changing a word.ExplainerHashtags Are a Search Index, Not a MegaphoneA hashtag makes a post findable in a query, which is a different job from making it spread. Model the visibility a tag actually buys and the answer falls out: a tag's worth is its viewers-per-post-published, not its volume — so a very popular tag returns almost nothing and a specific one returns twenty-five times more.ExplainerWhen to Post, and Why the Answer Is Mostly Not the TimePublished best-time tables average over audiences that are not yours, and on a ranked feed posting time matters far less than it did on a chronological one. Compute your own audience's activity across time zones instead — six zones flatten the timing lever from a 94% swing to a 22% one — and see how many posts a real timing test needs.ExplainerWhat an Influencer Earnings Calculator Is Really EstimatingThese tools multiply followers by an assumed rate per thousand, which makes them a CPM model under another name — and every input behind that rate is an assumption they never show you.