CSV Email Extractor
Email addresses scattered across multiple columns, mixed in with other data? Our extractor scans every cell, validates each address, deduplicates the results, and hands you a clean list — ready for your email tool.
CSV Email Extractor
Extract email addresses from CSV with domain filtering and validation
Drag and drop a CSV file here, or click to browse
or paste CSV data below
Remove duplicate email addresses
Check if emails match standard format
Only extract emails from this domain
Comma-separated list of domains to exclude
What This Tool Does
This tool scans all columns in your CSV file and extracts valid email addresses. It validates email format using regex, optionally deduplicates results, filters by domain, and provides statistics on extracted emails. Export as a simple list or CSV format.
Extraction Options
Deduplicate emails: Remove duplicate email addresses. Each unique email appears only once.
Validate email format: Only extract emails matching standard email format ([email protected]).
Include only specific domain: Extract only emails from a specific domain (e.g., "@gmail.com", "@company.com").
Exclude domains: Filter out emails from specific domains (e.g., exclude "@gmail.com, @yahoo.com" to get only business emails).
Output format: Choose between simple list (one email per line) or CSV with metadata.
Example Extraction
Input CSV:
name,contact,notes Alice,[email protected],Primary contact Bob,[email protected],Secondary Charlie,invalid-email,Not valid Diana,[email protected],CEO Eve,[email protected],CTO
Extract with validation, deduplication:
Output (list format):
[email protected] [email protected] [email protected] [email protected]
"invalid-email" was excluded (invalid format). 4 valid emails extracted.
Example: Domain Filtering
Same input, include only "@example.com":
[email protected] [email protected] [email protected]
Gmail address excluded. Only company domain emails extracted.
When to Use This
Marketing list building: Extract email addresses from customer databases for campaign targeting.
Contact consolidation: Gather all emails from scattered data into a single mailing list.
Lead qualification: Filter emails by domain to separate business leads from personal emails.
Data cleaning: Identify and extract valid emails from messy contact data.
Compliance auditing: Review what email addresses are stored in your databases.
Email Validation
The tool validates emails against standard format:
Valid formats:
[email protected] [email protected] [email protected] [email protected]
Invalid formats:
invalid-email (no @) @domain.com (no local part) user@ (no domain) user@domain (no TLD) user [email protected] (space in local part)
Note: Validation checks format only, not whether the email actually exists.
Statistics Provided
After extraction, see:
Extraction Results: - Total emails found: 1,247 - Valid emails: 1,180 - Invalid emails: 67 - Unique emails: 1,053 - Duplicate emails removed: 127 Top domains: - gmail.com: 423 (36%) - yahoo.com: 215 (18%) - company.com: 180 (15%) - outlook.com: 142 (12%) - Other: 220 (19%)
Domain Filtering Tips
Include single domain: Enter "@company.com" to get only company emails.
Exclude free providers: Enter "@gmail.com, @yahoo.com, @hotmail.com, @outlook.com" to get only business emails.
Multiple domains: Separate multiple domains with commas.
Case insensitive: Domain matching is case-insensitive. "@Gmail.com" matches "@gmail.com".
Output Formats
List format: One email per line. Best for copying into email tools or simple text files.
[email protected] [email protected] [email protected]
CSV format: Includes metadata like source row and validation status.
email,valid,source_row [email protected],true,5 [email protected],true,12 [email protected],true,18
Limitations
Format validation only: This tool checks email format, not whether addresses actually exist or can receive mail.
Large files: Works best with files under 50MB. Very large files may cause slow performance.
Embedded emails: Emails must be in recognizable format. Obfuscated emails (e.g., "alice at example dot com") won't be detected.
Frequently Asked Questions
Does this verify if emails are real?
No. This tool only validates email format. It doesn't check if the email address actually exists or can receive mail.
Can I extract emails from specific columns only?
This tool scans all columns. For specific columns, extract them first using CSV Column Extractor.
How do I handle international email addresses?
The validator supports standard ASCII email addresses. International domains (IDN) with non-ASCII characters may not be fully supported.
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