Free social media tool
Social media post length checker
Check the length of a post before you publish it or paste it into a reply.
Check your post length
Compare your draft with the limit for each supported platform.
X
Ready to check
Suggested range: 71–100 characters.
- Words
- 0
- Hashtags
- 0
X works best with up to 2 focused hashtags.
About this tool
Each platform has its own limit and its own reading rhythm. Check the hard limit first, then use the suggested range as a useful starting point.
Frequently asked questions
How does the post length checker work?
Choose a platform and enter your post. The tool counts characters, words, and hashtags against that platform’s limit.
Which platforms are supported?
The checker covers X, LinkedIn, Reddit, Threads, and Bluesky.
Does the tool save my draft?
No. The count runs in your browser. Your text is not uploaded or stored.
Keep the conversation moving
Add ReplytoSocial to Chrome — free.
Draft useful replies in the feed, keep your voice, and review every reply before you post.