Email Address Validator
Validate email addresses with 7 format checks. Detects disposable emails and free providers. Bulk validator accepts up to 100 emails at once — paste one per line.
✅ 7 Checks 📋 Bulk Validate 🚫 Disposable Detection ⚡ Live
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Email Address Validator📋
Bulk Email Validator✅
7 Format Checks
Luhn, @ presence, local part, domain, TLD, consecutive dots, start/end checks.
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Bulk Validation
Paste up to 100 emails one per line — valid/invalid count with per-email status.
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Disposable Detection
Identifies 20+ disposable email domains like mailinator and guerrillamail.
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Private
All validation runs locally in your browser. No emails sent anywhere.
⭐ User Reviews
A
Alex T.
Yesterday
⭐⭐⭐⭐⭐
Exactly what I needed — fast, accurate and no sign-up required. Bookmarked for daily use.
Validator ToolsS
Sara K.
2 days ago
⭐⭐⭐⭐⭐
The detailed breakdown is excellent. Tells me not just pass/fail but exactly why. Very useful.
Validator ToolsD
Dan M.
1 week ago
⭐⭐⭐⭐⭐
Clean and reliable. I use this in my development workflow every day. Highly recommend.
Validator ToolsL
Laura B.
2 weeks ago
⭐⭐⭐⭐⭐
Saved me hours. The output is professional and ready to use without any editing needed.
Validator Tools📖 How to Use
1
Enter an email
Type or paste a single email for instant format checking.
2
Read the checks
Each of the 7 validation steps shows pass or fail with explanation.
3
Bulk validate
Scroll down and paste multiple emails one per line.
4
Copy valid emails
Use results to filter your list — valid count shown at top.
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❓ FAQ
What makes an email address valid?+
A valid email must have: one @ symbol, a local part (1–64 chars, allowed special chars), a domain with at least one dot, a valid TLD (2–13 alpha chars), no consecutive dots, and no leading/trailing dots in the local part. RFC 5321 defines the full specification.
Does this check if an email actually exists?+
No. Format validation only checks if the email is correctly formatted. Verifying if an address actually exists requires an SMTP handshake or sending a test email. This tool detects format errors and common invalid patterns.
What is a disposable email?+
Disposable email services provide temporary addresses that expire after minutes or hours. They're used to avoid spam but are also used to circumvent registration restrictions. This tool detects 20+ known disposable email domains.
What are the valid special characters in email addresses?+
The local part (before @) allows: letters (a-z, A-Z), numbers (0-9), and these special characters: . ! # $ % & ' * + / = ? ^ _ ` { | } ~ -. However, many email systems are more restrictive in practice.
Why would a valid-format email still bounce?+
Format validity doesn't guarantee deliverability. Emails can bounce if: the domain has no MX record, the mailbox doesn't exist, the mailbox is full, the server rejects your IP, or the address is a role account (noreply@).