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Character Counter with Platform Limits

Track your character count live against the limits of every major platform — X, Bluesky, Mastodon, Threads, Instagram, LinkedIn, YouTube, Reddit, Facebook, TikTok, Discord, Slack, SMS, and SEO meta tags. Pin the limits you care about, see remaining or over-budget characters at a glance, and write copy that fits the first time.

Tool Summary Answer Block

This tool accepts structured input and returns deterministic output in the browser with no server upload.

Tool name: Character Counter with Platform Limits
Input intent: Provide source content to transform, validate, or analyze.
Output intent: Receive normalized output suitable for copy, reuse, or debugging.
Example input: Just shipped a new character counter that knows the limits for X, Bluesky, SMS, and SEO meta tags. One paste, every platform, live progress bars.
Example output: Pinned: X 144/280, Bluesky 144/300, meta-title 144/60 (over), SMS-unicode 144/70 (over).

Your textDrop file

Recent inputs0

Your last 5 inputs will appear here.

Characters97

Visual characters97

UTF-8 bytes97

Words18

Lines1

Sentences2

Pinned limits

X (Twitter) post

97 / 280 chars183 left

Bluesky post

97 / 300 graphemes203 left

SMS (single message GSM-7)

97 / 160 bytes63 left

SEO meta title (pixel-safe)

Google truncates around 60 characters in desktop search.

97 / 60 chars+37 over

SEO meta description

Google generally truncates near 160 characters.

97 / 160 chars63 left

More platforms (18)

X Premium long post

97 / 25000 chars24903 left

Mastodon toot

97 / 500 chars403 left

Threads post

97 / 500 chars403 left

LinkedIn post

97 / 3000 chars2903 left

LinkedIn headline

97 / 220 chars123 left

LinkedIn summary

97 / 2600 chars2503 left

Instagram caption

97 / 2200 chars2103 left

Instagram bio

97 / 150 chars53 left

TikTok caption

97 / 2200 chars2103 left

YouTube title

97 / 100 chars3 left

YouTube description

97 / 5000 chars4903 left

Reddit post title

97 / 300 chars203 left

Facebook post

97 / 63206 chars63109 left

SMS (single message UCS-2)

97 / 70 chars+27 over

Open Graph title

97 / 60 chars+37 over

Open Graph description

97 / 200 chars103 left

Discord message

97 / 2000 chars1903 left

Slack message

97 / 4000 chars3903 left

Tool Introduction

Tool Overview

Most character counters only show one number. This one shows the right number for the right place: 280 for an X post, 300 for Bluesky (graphemes, not chars), 160 for an SMS (bytes, not chars), 60 for an SEO meta title, and so on. Pinned platforms surface at the top with progress bars; the rest live in an expandable section. Counts include UTF-8 bytes (for SMS payloads), grapheme clusters (for emoji-aware platforms), characters, words, lines, and sentences.

Use Cases

Draft a post that fits both X and Bluesky without rewriting
Check that an SEO meta title won't be truncated in Google
Confirm an SMS marketing message fits in one segment
Make sure a LinkedIn headline doesn't exceed 220 characters
Balance an Instagram caption against the 2,200 character cap

Input/Output Examples

Same text, very different fit depending on the destination.

Input Intent

Just shipped a new character counter that knows the limits for X, Bluesky, SMS, and SEO meta tags. One paste, every platform, live progress bars.

Output Intent

Pinned: X 144/280, Bluesky 144/300, meta-title 144/60 (over), SMS-unicode 144/70 (over).

FAQ

Why does the grapheme count differ from the character count?+

Emoji and some scripts use multiple Unicode code points to render a single visual character. Platforms like Bluesky count graphemes; this counter shows both so you don't get blindsided.

Why are SMS limits in bytes?+

SMS uses GSM-7 (160 bytes per segment) or UCS-2 (70 chars per segment) encoding. Special characters can push a message into a second segment, costing more. The byte count reflects the actual SMS payload.

Are these limits up to date?+

Limits track each platform's documented caps as of the tool's last update. Some platforms cap visible characters in the timeline differently from the actual post body — see the per-platform hints.

Is my text uploaded?+

No. Counting happens entirely in your browser.