Username Checker for Social Media Handle Availability

    Check whether a username or social media handle may be 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.

    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.

    Social media handle checker use cases

    This username checker is built for the messy middle of choosing a handle: you have a brand name, creator name, product name, or newsletter title, but you still need to see where it works. Check the same name across social networks first, then use the platform-specific checkers when one network matters most.

    • •Run an X handle check before printing a short @username anywhere public.
    • • Check Instagram and Threads together because Threads uses the Instagram username.
    • • Compare TikTok, Pinterest, LinkedIn, and Bluesky before settling on a cross-platform brand handle.

    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

    X
    BlueskyBluesky
    Threads
    Instagram
    Pinterest
    LinkedIn
    TikTok

    How the Username Checker Works

    1

    Enter Username

    Type your desired username in the input field

    2

    Check Validity

    We show which platforms support your username format

    3

    Check the platform

    Click each link to see whether the username may be available

    Frequently Asked Questions

    About TheBlue.social

    TheBlue.social helps solo creators follow back and clean up their Bluesky network, then connect supported accounts to schedule posts. Username checking is a separate first step; it does not connect or reserve an account.

    Keep the handle active after you claim it

    Cross-platform username checking opens profile links so you can check whether a handle may be available. It does not reserve the name. After you claim it, TheBlue.social can publish to Bluesky, X, Threads, Instagram, LinkedIn, Pinterest, Mastodon, and TikTok. YouTube video uploads support an explicit Private, Unlisted, or Public visibility choice.

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