Free social mediacharacter counter.
Check your caption against every platform's limit at once. Paste your text and see live character counts for X, Bluesky, Threads, Instagram, TikTok, LinkedIn, and YouTube — and exactly how much room is left on each. Free, instant, and runs entirely in your browser.
LIVE COUNTER
Count your caption against every platform
Type or paste below. Each platform card updates live with your character count, the documented limit, and how much room you have left.
X / Twitter
0 / 280Bluesky
0 / 300Threads
0 / 500TikTok
0 / 2,200YouTube
0 / 5,000Why per-platform limits matter
The same caption that fits an Instagram post gets truncated on X and cut off on Bluesky. AnySync solves this automatically — it writes a native-length caption per platform from one upload, so you never hand-trim again.
Check any caption in three steps.
Paste your caption
Drop your draft into the counter. Nothing is uploaded — it runs entirely in your browser.
Scan every platform
See your live character count against X, Bluesky, Threads, Instagram, TikTok, LinkedIn, and YouTube limits at once.
Trim or let AnySync handle it
Cut where you're over, or let AnySync write a native-length caption per platform from one upload.
Stop counting characters by hand.
This tool tells you where you're over. AnySync writes a correctly-sized caption for each platform automatically.
AnySync drafts a native-length caption for every network from a single upload — no manual trimming.
Captions are generated to fit each platform's format, so posts never get truncated unexpectedly.
Write once; AnySync adapts length, tone, and hashtags per platform and publishes for you.
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In the product
Character counter questions
Is this character counter free?
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Yes. It's completely free, needs no sign-up, and runs entirely in your browser — your text never leaves your device.
What platform limits does it check?
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It checks X/Twitter (280), Bluesky (300), Threads (500), Instagram and TikTok captions (2,200), LinkedIn posts (3,000), and YouTube descriptions (5,000). Platforms occasionally change these, so confirm against the network's current docs.
Do emojis count as one character?
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The counter counts by Unicode code point, so most emoji count as one. Note that some platforms count certain emoji or links differently in their own editors.
Can AnySync write captions that fit automatically?
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Yes. AnySync's AI assistant generates a platform-native caption for each network from one upload, sized to fit that platform, so you don't hand-trim.