100% free · no app · no sign-up
Roblox Username Generator
Get cool Roblox username ideas that follow Roblox rules: letters, numbers and at most one underscore, 3–20 characters.
Tap any result to copy it, then paste it into Instagram, WhatsApp, TikTok, Free Fire, PUBG, BGMI or Discord. The number under each name is its character count — games limit nickname length. Fonts change English letters (A–Z); symbols and flags work with names in any language, including Urdu, Hindi and Arabic.
Roblox username rules
- 3–20 characters long.
- Only letters (A–Z), numbers (0–9) and one underscore (_).
- An underscore cannot be at the start or end.
- No spaces and no fancy symbols.
Our generator follows these rules, so every idea is ready to try on the Roblox sign-up or username change screen. Your display name is separate from your username and has its own rules.
How to use it
- Type your name or favourite word. The Games → Roblox category opens automatically.
- Copy an idea and check if it’s available on Roblox.
- If it’s taken, try another idea or add a number.
Frequently Asked Questions
Why can’t I use fancy fonts on Roblox?
Roblox usernames only allow plain letters, numbers and one underscore, so fancy Unicode letters are rejected.
Is this the same as a Minecraft username?
Not quite. Minecraft Java usernames allow 3–16 characters. Use the Games → Minecraft category for shorter ideas.