Social Media Character Counter

It is a free tool that counts the characters in your caption and instantly checks it against every social platform's limit at once, so you know before you post whether it fits on Instagram, X, TikTok, LinkedIn, and more. You paste or type your text and each platform shows a live count, how many characters remain, and whether you are over the limit.

The current published limits are: X (Twitter) 280, Instagram caption 2,200, TikTok caption 2,200, LinkedIn post 3,000, Facebook post 63,206, YouTube description 5,000, Pinterest description 500, Threads 500, Bluesky 300, Mastodon 500 (default instance), and Google Business post 1,500. Platforms change these from time to time, so always confirm against the live app.

X counts every link as 23 characters no matter how long the URL actually is. This counter applies that rule for the X limit, so a long link only adds 23 to your X count while it adds its full length everywhere else. That is why the same caption can show a different count on X than on Instagram.

No. The counting happens entirely in your browser, and your draft is saved only to your own device via local storage so it is still there when you come back. Nothing is uploaded to a server.

Yes. Once your caption fits the platforms you care about, OmniSocials lets you publish or schedule it across all 11 platforms at once, with per-platform tweaks where you need them, for a flat $10/mo. You can also do it from the API, the CLI, or an AI assistant through the MCP server.