SNSユーザー名空き確認
Instagram・Twitter/X・TikTok・YouTube・Redditでのユーザー名使用可否をクライアント側でシミュレーション確認。
100% client-side · no API calls
How to use
- Enter the username you want to claim in the input box above.
- Click Check to validate it against each platform's rules.
- Green means the username format is valid for that platform. Visit the platform to check real-time availability.
Related social media tools
- Social Bio Builder — craft a bio to go with your new username
- YouTube Thumbnail Preview — preview your YouTube channel thumbnail
- Instagram Hashtag Counter — plan your first Instagram post
よくある質問
- Is this tool free?
- Yes, completely free with no signup and no usage limits.
- Are the results real availability checks?
- No. This tool simulates availability checks client-side based on username formatting rules (length, allowed characters). For real availability, visit each platform directly.
- Does it work on mobile?
- Yes. The tool is mobile-first and works on iPhone Safari and Android Chrome.
Last updated: By jarvisbox