Social Media

Character limits, hashtags, image sizes and engagement math, for posts that have to fit what each platform allows.

5 tools in 4 groups

Character Limits

1 tool

Twitter/X Character Counter

Count characters against the 280-character X limit, with URLs counted as 23 and a tweet-thread splitter.

Content Tools

2 tools

Hashtag Counter

Count total and unique hashtags in any caption, flag duplicates, and warn when you pass each platform limit.

YouTube Timestamp Link Generator

Build a YouTube link that starts at an exact moment, or a full list of timestamped chapters for your video description, all in your browser.

Sizing & Specs

1 tool

Aspect Ratio Calculator

Solve for a missing width or height from any aspect ratio, or reduce two dimensions to their simplest ratio.

Engagement

1 tool

Engagement Rate Calculator

Work out your social media engagement rate for one post or average it across several, then judge it against real Instagram, TikTok, X, and LinkedIn benchmark bands.