✨Text Cleanup
Clean Email List
Remove invalid formats and lowercase all emails in a list.
Explanation
Standardizing email lists prevents duplicate entries in CRM systems and improves deliverability.
Examples
Messy Emails
Input
JOHN@ME.COM jane@me.com Invalid-Email
Output
john@me.com jane@me.com
Code Examples
JavaScript
const cleanEmails = input.split('\n')
.map(e => e.trim().toLowerCase())
.filter(e => /^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(e));Try it Now
💡 Tips
- Lowercase is critical as emails are usually case-insensitive
- Combine with deduplication for a clean mailing list
- Check for common typos like .con instead of .com
⚠️ Common Pitfalls
- Strict regex might reject some valid but unusual email formats