Why do Shopify product CSV imports fail?

Shopify product imports commonly fail due to missing 'Handle' or 'Title' headers, duplicate variant option combinations across the same handle, currency symbols (like '$') inside price columns, missing image protocol prefixes (http:// or https://), and UTF-8 encoding issues.

Is my product CSV data uploaded to any server?

No. This validator operates 100% client-side inside your web browser. Your product catalogs, pricing, and vendor details never leave your computer.

How should product variants be structured in a Shopify CSV?

The first row of a product must contain the Handle, Title, Description (Body HTML), Vendor, and Type. Subsequent variant rows sharing the same Handle must only provide Option values, SKU, Price, and Inventory, leaving the Title and Description blank.

100% Client-Side Engine • Zero Server Upload • 100% Private

Shopify CSV Import Pre-Validator & Error Fixer

Scan your Shopify product CSV files for common formatting errors, duplicate variant keys, invalid prices, and missing image URLs before uploading to avoid failed imports.

Upload or Paste Shopify Product CSV

Client-Side Only

Click to browse or drag & drop your .csv file

Supports standard Shopify product export & vendor feed files

Or Paste Raw CSV Data

Detailed Diagnostic Report (0 issues)

0 Errors 0 Warnings

Row	Severity	Field / Column	Diagnostic Message

Shopify Import Readiness 0 Rows • 0 Cols

Import Health Score

Waiting for CSV input...

Required Shopify Headers: Pending

Handle Slug Formatting: Pending

Duplicate Variant Combinations: Pending

Price & Numeric Formatting: Pending

Image URL Protocols: Pending

Quick Tip

Upload a CSV or try the sample buttons above to run diagnostic checks.

Common Shopify CSV Import Errors & How to Fix Them

A comprehensive reference guide for e-commerce developers, store owners, and catalog managers.

"Line X-Y: Option values are not unique"

This occurs when multiple rows sharing the same Handle have identical values for Option1 Value, Option2 Value, and Option3 Value (for example, two rows listing "Size: Small" and "Color: Black"). Every variant must have a unique combination of option attributes.

"Validation failed: Price is not a number"

Exporting from Excel often inserts currency symbols like $24.99 or comma decimal separators (24,99). Shopify strictly requires clean floats with periods (e.g. 24.99) and no letters or currency signs.

"Illegal characters in Handle"

The Handle becomes your product's URL slug (e.g. /products/my-cool-shirt). It should contain only lowercase alphanumeric letters and hyphens. Spaces, apostrophes, and symbols trigger import rejections.

"Image Src cannot be downloaded"

Shopify downloads images from external URLs during import. Ensure all image links start with https://, are publicly accessible (not behind Google Drive passwords), and point directly to image extensions (.jpg, .png, .webp).