Free Social Media Character Counter

Check post length against every platform.

Runs locallyNo uploadPrivate

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What is the Social Media Character Counter?

Every platform has a different limit — 280 here, 2,200 there, 150 for a bio — and nothing kills a good post like discovering it's cut off after you hit publish. Writing once and checking it against every platform's limit saves the reformatting scramble.

This counter shows your character count against every major platform at once, emoji included. It runs in your browser.

Last updated: Sep 1, 2026

What does this tool do?

You paste your caption or post and it counts characters (counting each emoji as one, the way the platforms do), words, hashtags and mentions. A table shows the limit for each platform and field — X, Instagram caption and bio, Facebook, LinkedIn post and headline, TikTok, YouTube title and description, Threads, Bluesky and Pinterest — with how much room you have left, turning red when you're over.

Write once, publish everywhere, without surprises.

Key features

Every platform

A dozen platforms and fields at once.

Emoji-aware

Counts by code point, like the platforms.

Over-limit flags

Rows turn red when you exceed a limit.

Extra counts

Words, hashtags and mentions too.

Private

Runs in your browser.

Example

Input

A 300-character caption with three hashtags.

Processing

It compares the length to each platform's limit.

Output

Green for Instagram, red 'over' for X and Bluesky.

Common use cases

Social managers — Fit one post to every channel.
Creators — Keep captions under the limit.
Copywriters — Write tight bios and headlines.
Marketers — Repurpose a post across platforms.
Small businesses — Post confidently without cut-offs.
Anyone — Check length before publishing.

Benefits

See every platform's limit in one view.
Emoji counted correctly.
Instant over-limit warnings.
Free and private.

Tips

Front-load the important words — most platforms truncate the preview well before the hard limit.
Bios are the tightest fields (Instagram 150) — write those first, then expand for captions.
On X, links and some characters count specially, so leave a little headroom under 280.
Keep hashtags in a block at the end so the caption reads cleanly and stays countable.
For a repurposed post, trim to the strictest platform you'll use so one version fits all.

Common mistakes to avoid

Writing to the hard limit

Fix: Previews cut off earlier — front-load key words and leave headroom.

Assuming emoji count as one everywhere

Fix: Most platforms do, but some count certain emoji as more; leave a little slack.

Ignoring the bio limit

Fix: Bios are far shorter than captions — check them separately.

Treating limits as exact for X

Fix: Links and special characters shift the real count; keep a buffer.

How it works

1
Paste your post
Caption, bio or description.
2
See the counts
Characters, words, hashtags, mentions.
3
Check each platform
Remaining room, red when over.

Frequently asked questions

X/Twitter, Instagram (caption and bio), Facebook, LinkedIn (post and headline), TikTok, YouTube (title and description), Threads, Bluesky and Pinterest.

Yes — it counts by Unicode code points, so an emoji counts as one character rather than several, matching how the platforms display length.

They're the current published limits and a close guide. Some platforms (like X) count links and certain characters specially, so treat those as approximate.

X/Twitter, Instagram (caption and bio), Facebook, LinkedIn (post and headline), TikTok, YouTube (title and description), Threads, Bluesky and Pinterest.

Yes — it counts by Unicode code point, so an emoji is one character, matching how platforms display length.

They're the current published limits and a close guide; some platforms count links and certain characters specially.

Yes — free, no sign-up.

Conclusion

Write your post once and see instantly where it fits and where it's over, across every major platform, emoji and all. Front-load the important words, mind the tight bio fields, and keep a little headroom on X for links.