Free Multi-Platform Writing Tool

Social Media
Character Counter

Check Instagram captions, LinkedIn posts, X posts, Threads posts, and YouTube descriptions against the right limit before the best part of the message gets buried.

Platform Presets

5 live counters

X Counting

URL aware

Preview Focus

Opening lines first

1. Start Here

Paste or write the text you want to check, then switch platform presets below if you need to compare how it fits in different places.

2. Platform Preset

Instagram Caption

Hard limit

2200

First window

125

Best practice

Put the main hook in the first sentence and move heavier context or hashtags further down.

Effective characters

0

Characters remaining

2,200

Words

0

Hashtags

0

Mentions

0

Lines

0

Start writing for Instagram

Track Instagram captions, opening lines, and hashtag volume before the feed preview folds.

Effective: 0/2200Remaining: 2200
Preview Windows

Common Feed Preview

Instagram often folds long captions quickly in the feed.

125 chars

Your text preview will appear here.

Fits in this window

Opening Line

The first line should make sense on its own.

55 chars

Your text preview will appear here.

Fits in this window

Full Caption Limit

The full caption can be much longer than the preview.

2200 chars

Your text preview will appear here.

Fits in this window

What to change next

Use the Instagram preset to draft directly against the right limit.

Platform note

Put the main hook in the first sentence and move heavier context or hashtags further down.

Write to the Limit

Character limits shape the way every platform reads.

A post can be technically valid and still fail the moment its best line lands after the fold. Social writing is not only about the maximum field size. It is about the amount of text people actually see before they decide whether to keep reading.

This social media character counter helps you draft against the right platform limit, compare common preview windows, and spot pressure points early for Instagram captions, LinkedIn posts, X (formerly Twitter), Threads, and YouTube descriptions.

Best practice: optimize the visible opening first, then use the remaining space for detail, links, hashtags, or structure.

1. Choose the platform

Switch between Instagram, LinkedIn, X, Threads, and YouTube description presets instead of guessing from memory.

2. Watch the preview windows

See how quickly the opening crosses the common feed fold even when the full post still fits the hard limit.

3. Tighten the opener

Move the hook earlier, leave room for links or hashtags, and publish with fewer last-minute trims.

Social Media Character Counter FAQ

What platforms does the social media character counter support?

The tool currently checks Instagram captions, LinkedIn posts, X posts, Threads posts, and YouTube descriptions so you can draft against the right limit before publishing.

Does X count URLs differently?

Yes. The X preset uses URL-aware counting, so each detected URL is treated as a 23-character link when the effective character total is calculated.

How long should an Instagram caption be?

Instagram captions can be much longer than the visible feed preview, so the practical goal is usually to make the opening sentence work before the caption folds, not simply to stay under the maximum.

What is the LinkedIn post character limit?

LinkedIn posts support up to 3,000 characters, but longer posts often collapse behind a See more action, so the opening block still needs to do the persuading.

What is the X (Twitter) character limit?

Standard X posts have a 280-character limit. X Premium subscribers can post up to 25,000 characters. URLs always count as 23 characters regardless of actual length. The X preset in this tool handles URL-aware counting automatically so you can see the effective character total before publishing.

Can I use this tool without an account?

Yes. The counter runs free in the browser, so you can check copy length, preview windows, and counts instantly without signing up.