Features How It Works Pricing FAQ Contact Sign In Get Started Free
CSV & Google Sheet Contact Validation Platform

Validate Your Sheets
Before You Send.

Clean emails, normalize phone numbers, detect countries, split contact groups, and export CRM-ready CSV files.
Secure storage. Smarter filters. Cleaner campaigns.

Freefirst sheet
CSV + Sheetsimport options
Email + Phonevalidation
No cardto start
Export Ready

Works with your CRM and marketing stack.

Mailchimp HubSpot Salesforce Klaviyo GoHighLevel ActiveCampaign iTech CRM etellu CRM
Why Validate Sheets

Stop wasting money on bad contact data.

Dirty lists hurt deliverability, waste sales time, damage sender reputation, and make CRM imports messy. Validate Sheets fixes the data before it reaches your campaigns.

Start Cleaning Free
  • Import CSV files or public Google Sheets
  • Score valid, risky, invalid, and unknown emails
  • Remove duplicate contacts
  • Validate domains with DNS and MX checks
  • Normalize phone numbers with country codes
  • Filter by country, contact status, and data quality
  • Split sheets into focused export groups
  • Export ready-to-use CSV files for any CRM

Whether you manage 1,000 or 1,000,000 contacts, Validate Sheets keeps your database organized, searchable, and export-ready.

Features

Everything you need to clean and split contact lists.

A complete validation workflow for emails, phones, countries, filters, exports, and client-safe storage.

CSV And Google Sheet Import

Upload CSV files or import a public Google Sheet. Validate Sheets reads headers and helps detect the correct email column.

Email Score Validation

Normalize emails, extract domains, check DNS and MX records, cache results, and classify rows as high score, risky, invalid, or unknown.

Phone And Country Detection

Detect phone numbers, normalize them with a leading plus sign, add country codes, and filter records by country.

Export And Split Sheets

Create separate CSVs for email and phone, email only, phone only, rejected, risky, valid, no email, or no phone records.

Advanced Filtering

Search and filter by row status, validation score, duplicates, trash, country, and contact data quality.

Support Inbox

Users can report bugs and receive replies inside the app, so support messages stay visible even if email delivery fails.

Who It's For

Built for modern marketing teams.

Validate Sheets is used across every industry that manages contact databases.

Digital Marketing Agencies
Lead Generation Companies
CRM Administrators
Sales Teams
Medical Clinics
Educational Institutions
E-commerce Businesses
Event Organizers
Simple Process

Three steps from messy list to clean exports.

No complicated setup. Upload, validate, filter, split, and export the records you actually need.

1

Upload Or Import

Import a CSV file or public Google Sheet. Works with flexible column layouts and helps detect your email field.

2

Validate And Score

The system checks emails, domains, MX records, phone formats, duplicates, country data, and row quality.

3

Split And Export

Create focused files for valid records, risky rows, email-only contacts, phone-only contacts, rejected records, or country-specific lists.

The Problem

Dirty email lists are silently killing your campaigns.

Invalid contacts don't just waste money — they actively damage your business.

Increase bounce rates
Damage your domain reputation
Trigger spam filters
Lower campaign performance
Inflate your email platform costs
The Solution

Validate Sheets keeps your lists healthy.

Run every list through our validator before sending. Catch bad data at the source — not after your metrics tank.

Emails land in inboxes, not spam
Lower bounce rates & costs
Protect sender score
Higher open & click rates
More revenue from every send
Pricing

Simple, honest pricing.

No setup fees. No contracts. Cancel anytime.

Free
Free / 1 sheet

Try one sheet free

  • 1 lifetime upload
  • Unlimited rows
  • CSV export
  • Domain validation
Get Started
Business
$25/mo

No limits, full power

  • Unlimited sheets
  • Unlimited rows
  • CSV export
  • Domain validation
  • Phone Validation
  • Priority support
Get Started

Start Validating Your Contact Sheets Today

Clean emails, normalize phones, split useful groups, and keep your CRM data ready to import.

FAQ

Common questions.

What happens when I hit my sheet limit?

Free includes one lifetime upload. If you reach the limit, you will see an upgrade prompt before another upload. Existing sheets and data are not affected.

Does my data leave my browser?

Your sheet is uploaded to private storage for processing. Each client uses its own storage path. Data is not sold or shared with third parties, and you can delete sheets when needed.

Can I cancel anytime?

Yes. Cancelling stops the next billing cycle. You keep full access until the end of the period you have already paid for.

How does MX validation work?

After checking the email format, the app queries DNS to confirm the domain has an MX record — meaning it is set up to receive email. This catches many bad domains that pass a basic format check.

Can it validate phone numbers?

Yes. Validate Sheets can detect phone numbers, normalize them with a plus sign, identify country details, and add phone fields to exports.

Which CRM platforms are supported?

Exports are plain CSV files compatible with Mailchimp, GoHighLevel, HubSpot, Salesforce, ActiveCampaign, Klaviyo, iTech CRM, etellu CRM, and any system that accepts CSV imports.