Regex Editor & Tester

Matches any sequence of characters outside a whitelist of ASCII letters, digits, spaces, common punctuation, and Latin-1 accented letters (covering Portuguese/Spanish characters like ã, ç, é, ñ). It effectively detects 'special characters' not permitted in the allowed set, such as control codes, emoji, or exotic symbols. With the global flag, it finds every occurrence, making it ideal for input validation and text sanitization in Latin-language applications.