SocialAgentSocial media character counter
Live character, word and line counts against every platform limit — plus what gets cut off in the feed.
Paste your text once and see it measured against every limit at the same time: the Instagram caption cap, the X post cap, the Threads cap, bio limits, and the point at which each feed truncates your text behind a "more" link.
The truncation preview is the useful part. Staying under the hard limit is easy; keeping the meaning inside the first visible line is what decides whether anyone reads the rest.
How to use it
- Paste or type your caption. Counts update as you type — nothing is sent anywhere.
- Check the truncation preview to see exactly where each feed cuts your text.
- Move anything essential above the cut. That includes the hook and any offer.
- Watch the line count too. Walls of text get scrolled past regardless of length.
Tips that actually change results
- Instagram shows roughly 125 characters before "more". Write the first sentence as if it is the whole post.
- X counts most emoji as two characters and shortens every link to 23 characters regardless of its real length.
- Line breaks cost you nothing in character count and buy a lot of readability.
- If your text is within 10 characters of a limit, cut a word. Platforms occasionally count differently than you expect.
Also useful here
AI Caption Generator
Turn a topic into caption variants shaped for Instagram, Threads or X — with the right length and a real call to action.
Open tool →Hook Generator
Twelve opening lines for your topic, grouped by the mechanism that makes each one work.
Open tool →Hashtag Generator
A balanced hashtag set from your keyword — broad, mid-size and niche tags, sized per platform.
Open tool →Questions about this tool
What are the current character limits?
Instagram captions allow 2,200 characters and about 30 hashtags; X allows 280 characters on a standard account; Threads allows 500 characters. Bios: Instagram 150, X 160, Threads 255. This tool measures your text against all of them at once.
How many characters show before Instagram truncates a caption?
Roughly 125 characters, depending on the device and whether your first line wraps. The tool marks the cut so you can see what a reader sees before tapping "more".
Do emoji count as one character?
Not always. Many emoji are two UTF-16 units and count as two characters on X, and skin-tone or family emoji can count for several. The counter uses the same unit counting the platforms use.
Is my text sent to a server?
No. The counter runs entirely in your browser. Nothing you paste leaves the page.
Schedule this with SocialAgent
Take the output, start a free workspace, and turn it into a reviewed, scheduled post on Instagram, Threads or X.