Unlimited Use
Username Checker
Check if your desired username is available across all major social media platforms instantly.
@
Username Best Practices
Do
- Keep it short and memorable (under 15 chars)
- Use the same username across all platforms
- Make it easy to spell and pronounce
- Include your name or brand if possible
- Consider SEO keywords for discoverability
Don't
- Use too many numbers or special characters
- Pick something that's hard to remember
- Use trademarked names (legal issues)
- Choose something you might outgrow
- Use random letter combinations
Platform Username Limits
| Platform | Min | Max | Allowed Characters |
|---|---|---|---|
| 1 | 30 | Letters, numbers, periods, underscores | |
| Twitter/X | 4 | 15 | Letters, numbers, underscores only |
| TikTok | 2 | 24 | Letters, numbers, underscores, periods |
| YouTube | 3 | 30 | Letters, numbers, underscores, hyphens |
| 3 | 100 | Letters, numbers, hyphens |
Solutions
© 2026 OutReply. All rights reserved.