Why do platforms show different character counts for the same caption?

Because they count differently. Bluesky, Threads, and Mastodon count grapheme clusters (what you see), while Instagram, TikTok, LinkedIn, and YouTube use UTF-16 code units — so an emoji or other astral character counts as 2. X/Twitter uses a weighted model where each link counts as 23 and CJK characters and emoji count as 2. This tool applies each platform’s own method to its bar, and the “Count by” toggle lets you see your text under any of the three.

What is the “… more” feed preview?

Most feeds show only the first part of a caption and hide the rest behind “… more”. The preview shows where that cut falls — about 125 characters on Instagram, 210 on LinkedIn, 280 on X, and 477 on Facebook — so you can front-load your hook.

How many hashtags should I use?

Instagram allows up to 30 hashtags per post; the tool warns you if you exceed that. Other networks are more lenient, but 3–8 focused tags usually perform best.

Caption & Hashtag Character Counter

Count the characters in your caption against every major 2026 platform limit — Instagram caption and bio, X/Twitter, TikTok (4,000), YouTube, LinkedIn, Threads, Bluesky, Mastodon, and Pinterest — and tally hashtags, mentions, emoji, and links live as you type. Each platform bar counts the way that platform actually counts, and a feed preview shows exactly where your caption gets cut to “… more”.

How to use Caption & Hashtag Counter

Write or paste your caption.
Watch the per-platform limit bars turn red if you go over — each uses that platform’s own counting method.
Use the feed preview to see where Instagram, LinkedIn, X, or Facebook trims your text to “… more”.
Check the hashtag count (Instagram caps at 30) and copy your hashtags.

Frequently asked questions

Why do platforms show different character counts for the same caption?: Because they count differently. Bluesky, Threads, and Mastodon count grapheme clusters (what you see), while Instagram, TikTok, LinkedIn, and YouTube use UTF-16 code units — so an emoji or other astral character counts as 2. X/Twitter uses a weighted model where each link counts as 23 and CJK characters and emoji count as 2. This tool applies each platform’s own method to its bar, and the “Count by” toggle lets you see your text under any of the three.
What is the “… more” feed preview?: Most feeds show only the first part of a caption and hide the rest behind “… more”. The preview shows where that cut falls — about 125 characters on Instagram, 210 on LinkedIn, 280 on X, and 477 on Facebook — so you can front-load your hook.
How many hashtags should I use?: Instagram allows up to 30 hashtags per post; the tool warns you if you exceed that. Other networks are more lenient, but 3–8 focused tags usually perform best.

More Text & Content Utilities

Slugify (URL Slug Generator) — Turn any text into clean, URL-safe slugs — strip accents, pick a separator, set a max length — processing each line live in your browser.
Word & Character Counter — Count words, characters, sentences, paragraphs, and estimate reading time.
Case Converter — Toggle between camelCase, PascalCase, snake_case, and kebab-case instantly.
Find & Replace (Regex) — Find and replace text in bulk — plain or regular-expression search with capture groups, case-insensitive, whole-word, and multiline options, plus a live match count and highlighted preview.
Whitespace & Line Cleaner — Tidy messy text — trim lines, collapse extra spaces, remove blank lines or all line breaks, and convert tabs to spaces — with stackable options applied live.
Diff Checker — Compare two blocks of text to find additions, deletions, and subtle changes.
Fancy Text & Font Generator — Turn your text into 𝓯𝓪𝓷𝓬𝔂 Unicode fonts — bold, script, bubble, glitch/zalgo — plus decorative borders and an invisible blank-space character for Instagram, TikTok & X bios. Tap to copy.
Emoji Picker & Search — Search emoji, kaomoji text faces (◕‿◕), aesthetic symbols (stars, hearts, dividers), and ready-made emoji combos — pick a skin tone and tap to copy. Recently used are remembered.