Guide
Character limits by platform
Character limits shape whether your bio, caption, or title gets truncated—or rejected outright. Paste drafts into a counter that tracks Instagram, X, TikTok, LinkedIn, and YouTube caps side by side before you schedule posts.
Common platform limits (check apps for updates)
Instagram bio ~150 characters; captions up to 2,200. X posts 280 (longer for premium tiers). LinkedIn posts thousands but front-load hooks. YouTube titles ~100 characters for clean display. Limits change—verify in-app before major launches.
Why the first line matters
Mobile feeds hide caption tails behind “more”. Put the hook in line one; hashtags and CTAs can move below the fold. Bios should lead with what you do, not clever filler that gets cut off.
Workflow with captions and bios
Draft in the caption generator, paste into the character counter, then open the Instagram bio tool if you are refreshing profile copy the same week. Keep one doc of approved lengths per campaign.
Best practices for character limits by platform
Write for skimmers: first line carries the hook. Align CTA with your link-in-bio or shop goal for the week. Start from the search intent on this page—not a generic template—so your profile, post, or plan matches what people expect when they land here.
Examples and patterns
Hook in line one, value in line two, CTA in line three. Reels benefit from curiosity gaps; carousels can tease slide 2 in the caption.
FAQ
Do emojis count as one character?
Often yes, but some emojis use multiple code units. The counter reflects what platforms typically count—still preview on device.
Are hashtags included in caption limits?
Yes on Instagram—they live inside the caption block. Some creators put tags in the first comment to save space.
Does X count links differently?
t.co links shorten to a fixed length on X. Paste the final URL you will publish when testing.
Is live limit data guaranteed?
We document common caps; platforms update rules. Always confirm in the native app before you publish.
Related guides
Suggested tools
Free tools that pair with this workflow—same recommendations as on tool pages.