Format your social media posts perfectly, every time
5 free tools to format posts perfectly for LinkedIn, Twitter/X, and Instagram. Everything runs in your browser — no signup, no data leaves your device.
Bold, italic, and bullet-style LinkedIn posts with Unicode. Includes a 3,000-character counter.
Open toolSplit long posts into numbered tweets under 280 characters. Copy individually or all at once.
Open toolClean line breaks, 2,200-char counter, and 70+ curated hashtags across 7 niches.
Open toolConvert any text into 11 Unicode styles: bold, italic, script, fraktur, small caps, and more.
Open tool13+ ready-to-use post templates for LinkedIn, Twitter, and Instagram.
Open toolEvery tool processes your input in real time. No loading spinners, no server round-trips.
All processing happens in your browser. Your text never touches a server. No accounts, no tracking.
Responsive design for desktop, tablet, and phone. Copy-to-clipboard on every output.
Most major social platforms — LinkedIn, Twitter/X, Instagram, Facebook, Discord, Slack, WhatsApp — strip traditional formatting like <b> tags or Markdown syntax from the text you paste. So how do creators make posts with bold or italic text? They use Unicode.
Unicode includes a Mathematical Alphanumeric Symbols block that defines separate codepoints for bold A-Z (U+1D400–U+1D419), italic A-Z (U+1D434+), double-struck, fraktur, script, and more. These are technically characters in their own right — not formatting — so they survive any copy-paste anywhere. The platform sees "𝗵𝗲𝗹𝗹𝗼" as exactly those Unicode characters and renders them as bold-looking text even though the post itself has no formatting markup.
Our LinkedIn Formatter, Unicode Text Styler, and Instagram Caption Formatter all use these mappings. One caveat: screen readers don't always handle these characters well, so use Unicode styling for emphasis, not for core content.
LinkedIn posts: 3,000 characters. Comments: 1,250. URLs count their actual length — LinkedIn doesn't shorten them.
Twitter/X tweets: 280 characters (free), 25,000 (premium). URLs are always counted as 23 characters (t.co wraps them). A Unicode bold character may count as 1 or 2 depending on the codepoint.
Instagram captions: 2,200 characters (only first ~125 are visible before the "more"). Up to 30 hashtags per post (Instagram demotes "banned" or overused tags).
Use our Twitter Thread Composer to auto-split long content into 280-char tweets, or the Instagram Caption Formatter to pack hashtags without breaking the 30-tag rule.