Runs entirely in your browser — no uploads, no saved snippets, no public links.

Paste a file, inspect the issues, export reviewed output.

Import workflow chooser

CSV import checkers by destination platform

Start with the system that will receive the file, then use generic CSV checks for cleanup, duplicate review and final export.

User problem

Start with Shopify CSV Validator

My Shopify product CSV needs a preflight

Start with Shopify-specific product, variant, handle and price rules before generic cleanup.

Best first tool

Shopify CSV Validator

Check product headers, duplicate handles, required fields and invalid variant prices.

What it checks

  • Required Shopify headers
  • Duplicate handles
  • Variant prices
  • Option value gaps

User problem

Start with WooCommerce CSV Validator

My WooCommerce product CSV needs SKU and price review

Use WooCommerce-specific checks when SKU identity, product status, stock and price fields matter.

Best first tool

WooCommerce CSV Validator

Check WooCommerce product import fields, SKUs and product values.

What it checks

  • Required product fields
  • Duplicate SKUs
  • Numeric prices
  • Image URL and status values

User problem

Start with HubSpot CSV Import Checker

I am importing contacts to a CRM or email platform

Choose a contact checker before upload so email identity, duplicates and invalid addresses are visible.

Best first tool

HubSpot CSV Import Checker

Check email columns, duplicate contacts and invalid addresses before CRM import.

What it checks

  • Email column presence
  • Duplicate email addresses
  • Invalid contact methods
  • Missing identity values

User problem

Start with QuickBooks CSV Checker

I am importing bank transactions into QuickBooks

Check accounting-friendly Date, Description and Amount columns before the mapping screen.

Best first tool

QuickBooks CSV Checker

Validate Date, Description and Amount columns plus duplicate transaction keys.

What it checks

  • Required transaction fields
  • Date parsing
  • Numeric amounts
  • Duplicate transactions

User problem

Start with CSV Data Quality Checker

I do not know why the import failed

Start with a broad CSV quality report when the destination error message is vague.

Best first tool

CSV Data Quality Checker

Best first pass for missing values, duplicate rows, mixed types and invalid formats.

Tool directory

Browse import checkers

Choose the checker that matches the destination platform first. After platform blockers are visible, use generic CSV tools for structure, missing values, duplicates and clean export steps.

Import

Shopify CSV Validator

Check Shopify product CSV files for required fields, duplicate handles, prices and image URLs.

Best for

checking Shopify product CSV files before product import or catalog updates.

Required Shopify headersDuplicate product handles
Open tool
Import

WooCommerce CSV Validator

Validate WooCommerce product CSV files for required fields, duplicate SKUs and import problems.

Best for

checking WooCommerce product CSV files for product identity, pricing and import-ready fields.

Required columnsDuplicate SKUs
Open tool
Import

HubSpot CSV Import Checker

Check HubSpot contact CSV files for email columns, duplicates and invalid values.

Best for

checking HubSpot contact CSV files before a CRM import creates bad or duplicate contacts.

Email column presenceMissing email values
Open tool
Import

Mailchimp CSV Checker

Validate Mailchimp contact CSV files for email columns, duplicates and invalid email addresses.

Best for

checking Mailchimp audience CSV files for contact-level issues before list import.

Email Address columnDuplicate emails
Open tool
Import

Google Contacts CSV Cleaner

Clean Google Contacts CSV files by checking duplicates, names, emails and phone numbers.

Best for

cleaning Google Contacts CSV exports before reimporting or merging address books.

Contact identityDuplicate email, phone or name keys
Open tool
Import

QuickBooks CSV Checker

Check bank transaction CSV files before importing into QuickBooks.

Best for

checking bank transaction CSV files before importing them into QuickBooks.

Required Date, Description and Amount columnsDuplicate transaction keys
Open tool
CSV

CSV Data Quality Checker

Profile CSV data for missing values, duplicates, invalid formats, mixed types, outliers and more.

Best for

profiling a CSV for import readiness before uploading it to a CRM, store, database or API.

Missing cellsDuplicate rows
Open tool
CSV

CSV Cleaner

Clean CSV files by removing duplicates and optionally dropping incomplete rows.

Best for

removing duplicate rows and optionally dropping incomplete rows before downstream checks.

Header detectionDuplicate key column
Open tool