X (Twitter) Character Limits Guide (2026)

X (Twitter) Character Limits Quick Reference

Tweet Character Limit

Standard X accounts have a 280-character limit per tweet. This limit applies to all text content, including spaces and punctuation. URLs are automatically shortened to 23 characters regardless of their actual length, counting toward your character total.

X Premium subscribers can post long-form content up to 25,000 characters. These extended posts display a preview in the feed with a "Show more" prompt, and the full content is visible on the post detail page.

X Premium Character Limit

X Premium (formerly Twitter Blue) unlocks long-form posts with a 25,000-character limit. This makes X a viable platform for newsletters, essays, and detailed threads without needing to break content into multiple posts.

X Premium also provides access to longer video uploads, reduced ads, and other features. The 280-character limit still applies to non-Premium accounts posting replies or quotes to Premium long-form posts.

Bio Character Limit

X profile bios are limited to 160 characters for all account types, including X Premium. This limit encourages concise, punchy descriptions. You can include hashtags, mentions, and emojis in your bio, each counted at their character length.

Emojis typically count as 2 characters in X's character counter, so a bio heavy with emojis will fill up faster than plain text.

Display Name and Username Limits

Your display name (the name shown prominently on your profile) has a 50-character limit. Your username -- also called your handle, preceded by the @ symbol -- is limited to 15 characters and can only contain letters, numbers, and underscores.

Usernames are unique across X and cannot be changed to one already in use. Unlike the display name, username length directly affects how you are mentioned in tweets, as the @username counts toward the 280-character limit.

Direct Message Character Limit

X Direct Messages support up to 10,000 characters per message, far more than a standard tweet. This applies to all account types, including free accounts. DMs also support media attachments, links, and emoji without separate restrictions beyond the character count.

Group DMs share the same 10,000-character limit per message, making them suitable for longer private conversations.

Thread Character Limits

X does not impose a limit on the number of tweets in a thread. Each individual tweet in a thread follows the same 280-character limit (or 25,000 for X Premium). You can add tweets to an existing thread at any time by replying to your own posts.

For standard accounts, breaking content across a thread of multiple 280-character tweets is the primary way to share longer narratives without an X Premium subscription.

Key X Character Limits at a Glance

Tips for Writing Within X Character Limits