Post length checker
for every platform.
Paste your text and instantly see whether it fits Instagram, Facebook, LinkedIn, X, Threads, TikTok, and Bluesky. Everything happens in your browser.
Runs entirely in your browser. Your text is never sent to a server or tracked.
Platform fit
Start typing above to see how your post fits each platform.
Ready to schedule that post?
Picmim lets you draft, schedule, and publish to all these platforms from one calendar. Start with a plan that fits your workflow.
Get started with Picmim →Frequently asked questions
Is this tool really free?
Yes. The social media post checker is completely free, requires no account, and has no usage limits. It is one of Picmim's free tools designed to help you work faster.
Does Picmim see or store what I type?
No. The entire tool runs in your browser. Your text is never sent to Picmim's servers, stored, or included in any analytics. We only track that the tool was viewed and used — never the content you enter.
Are the character limits up to date?
The limits reflect the character counts that Picmim enforces when scheduling posts through each platform's official API. Instagram allows 2,200, Facebook 5,000, LinkedIn 3,000, X 280, Threads 500, TikTok 2,200, and Bluesky 300 characters.
Why does the count differ from what the platform shows?
Most platforms count the visible characters, which is what the main counter shows. X is the exception: it counts every link as 23 characters no matter how long the link is, and counts Chinese, Japanese, Korean, and emoji characters as two. The checker applies those rules to the X row, so it can report a different number from the one next to your text.