Shopify product CSV preflight

Check your Shopify CSV before you import

Find detectable structure, header, product, variant, price, and image URL issues before they reach your store.

Processed locally in your browserOne UTF-8 CSV, up to 15 MiB

Local file check

Check my CSV

Choose or drop your Shopify product CSV / XLSX

CSV / XLSX · Up to 15 MiB · Processed in your browser

What are you importing?

New products

I am adding products.

Update existing

I am editing products.

Not sure

Check without an import assumption.

This public practice file adds a BOM and mixed line endings to an official sample subset. Apply the safe fixes, download the copy, then review it in Compare. Product values stay unchanged.

Local file check

What is checked

CSV structure, supported headers, product and variant patterns, price and image URL syntax, and selected-worksheet XLSX formula and numeric risks.

Critical

F003

CSV quoting is malformed or left unclosed.

Critical

H001

The required Title column is missing.

Critical

V001

Variants under one handle repeat the same option combination.

Warning

I001

An image URL is not absolute HTTP(S) or is an obvious local path.

Review supported rules

Processed locally

Review findings

See the record, field, evidence, severity, and next step for each finding.

CSV recordFieldRule evidence

broken-products.csv

Do not import yet

18 CSV

Critical

H001

The required Title column is missing.

Record 1 · Title

Warning

V003

One non-empty SKU maps to multiple products or variants.

Record 18 · Variant SKU

Info

F006

The file starts with a UTF-8 byte order mark.

Record 1 · CSV

How it works

A careful check in three steps

Choose a CSV

Select a Shopify product CSV from your device.

Review findings

See the record, field, evidence, severity, and next step for each finding.

Keep control

Download a report or a separately generated copy after reviewing any safe format fixes.

TikTok Shop US template precheck

Check a native women’s T-shirt workbook and download a complete findings report.

TikTok Shop US template precheck

Wix legacy CSV precheck

Check products, explicit variants and basic prices in the legacy 50-column Wix CSV.

Wix legacy CSV precheck

Import Risk Compare

Compare an original Shopify export with an edited CSV before import. This pilot checks exact matches and selected fields; it does not predict the actual store outcome.

Compare

Prepare a Shopify price update

Preview a percentage or fixed-amount adjustment to the base Price column, create a CSV copy, and review the import impact with Compare.

Prepare a Shopify price update

Convert WooCommerce products to Shopify

Preview simple products or opt into explicitly defined variations, review omitted fields, then generate Shopify drafts.

Convert WooCommerce products to Shopify

BigCommerce CSV Validator

Compare a target-store export with the CSV you plan to import. Both files stay in this browser tab.

Open BigCommerce CSV Validator Practice a baseline check with public files

Clear checks, clear limits

Catalog Precheck checks the file you provide. It cannot see your store settings, existing catalog, or guarantee a future import outcome.

View rules

Check your Shopify CSV before you import

Find detectable structure, header, product, variant, price, and image URL issues before they reach your store.

Check a CSV

Live check preview

See every catalog check happen.

The checker reads each row, applies marketplace rules, and turns every finding into a clear next action.

01 Parse the catalog

02 Validate every rule

03 Prioritize the fixes