Username Availability Checker for Social Media Handles

Check if a username or social media handle is available across X, Instagram, TikTok, Threads, Pinterest, LinkedIn, and Bluesky. Open direct profile checks, compare platform rules, mark each result, and save your handle search in this browser.

Username

Enter a single username to check its availability across all platforms

Social Media Username Requirements by Platform

X:1-15 chars, letters/numbers/underscores only
Instagram:1-30 chars, letters/numbers/periods/underscores
Threads:Same as Instagram (uses your Instagram username)
TikTok:2-24 chars, cannot start/end with period
Pinterest:3-30 chars, letters/numbers/underscores only
LinkedIn:3-100 chars, must start/end with letter or number
Bluesky:1-253 chars, letters/numbers/periods/hyphens, or custom domain

Username checker tips

💡Keep it under 15 characters if you want the same username to work on X.
💡Avoid periods and hyphens for broad username availability across social networks.
💡Check Instagram, TikTok, Pinterest, and X before announcing a new handle.
💡Avoid numbers unless they are part of your brand name.

Username availability checker workflow

Use this as a first-pass social media username availability checker before you commit to a brand name, newsletter handle, creator account, or product launch. It validates the username against each network's rules, opens the direct profile checks, and lets you mark each result as available, taken, unclear, or already yours.

•Start with the shortest version of the name so it fits X, Instagram, and Pinterest.
•Open each platform profile URL and record the result before creating new accounts.
• Use the dedicated Instagram, TikTok, and Pinterest checkers when you need bulk handle checks for those networks.

Dedicated username checkers

Need platform-specific rules or bulk checks? Use dedicated username checkers for Instagram username checker, X username checker, TikTok username checker, or Pinterest username checker.

Get Started with Cross-Posting

How to Pick a Social Media Username

•Start under 15 characters if you want the same handle to work on X.
•Use letters, numbers, and underscores for broad compatibility.
•Check close variants before changing a public brand or creator name.

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Supported Platforms

Bluesky

Threads

Instagram

TikTok

How the Username Checker Works

Enter Username

Type your desired username in the input field

Check Validity

We show which platforms support your username format

Verify Availability

Click each link to check if the username is available

Frequently Asked Questions

About TheBlue.social

TheBlue.social is a comprehensive social media management platform that helps creators and businesses manage their presence across multiple platforms. From scheduling posts to analyzing engagement, we provide the tools you need to grow your audience and maximize your social media impact.

Keep the handle active after you claim it

cross-platform username checking helps with the first decision. TheBlue.social helps after that: schedule posts, compare engagement, and keep Bluesky, X, Threads, Instagram, LinkedIn, Pinterest, and Mastodon moving from one place.

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