NamelessNameSanitizerBot

See the Official Website

To be able to use this bot you must request for NamelessNanashi make you a bot admin in the server in question or self-host it.

NamelessNameSanitizerBot is a Unicode-aware Discord moderation bot that keeps member nicknames clean, readable, and consistent with your server’s policy. It enforces per-guild rules for length, spacing, and emoji while respecting grapheme clusters, ensuring combined characters aren’t broken. Designated Bot Admins can enable or disable the bot per server, configure a bypass role and logging channel, run on-demand sweeps, and sanitize specific users. Built for reliability with PostgreSQL and Docker, it stores minimal data and offers owner/admin commands for precise, auditable control.