Check your supplier CSVs. Free.

Select a supplier file and Shopify export. Map the fields, see the overlap, and review a few findings before opening the full report.

CSV → Comparison → Review reportRead-onlyFiles stay on this device

Source files

01 / Setup

01Supplier catalogThe raw product list you received.Choose a CSV file ＋UTF-8, comma-separated · 2 MB · 5,000 rows02Current Shopify exportYour baseline for SKU, labels, and prices.Choose a CSV file ＋Product CSV · legacy and current header names

Column mapping

02 / Configure

Select the fields to compare.

SUPPLIER COLUMN

SKU / referenceBrandFirst option, e.g. sizeSecond option, e.g. colourAmount

SHOPIFY COLUMN

SKU / referenceBrand / vendorCorresponding first optionCorresponding second optionCorresponding amount

Comparison rules

0 rules

Confirm equivalent option labels for one exact brand per rule. Values are case-sensitive; surrounding spaces are ignored.

Field	Supplier value	Catalog value	Exact brand	Confirmation	Rule actions
No rules yet. Option labels are compared exactly. Add a rule here or beside a mismatch after scanning.

Rules affect comparisons only. They do not change source files, rename SKUs, adjust prices, or edit your store. New files clear the rule list; changing mapped columns requires confirmation again.

Price assumptions Confirm your interpretation

Supplier decimal format

Both amount columns use the same currency, price type (retail or cost), and tax basis. No conversion is needed.

No currency symbols, thousands separators, discounts, exchange rates, or automatic size conversions. Mapping only one price or option column is not supported.

Uncertain rows stay blocked. Decisions reset when inputs change.

⇄

No comparison yet

Select two CSV files to begin, or use the synthetic sample.

Your free scan

03 / Findings

No payment required

A few findings from your files

Up to 3 examples · full report includes every row

See every finding, with its original rows.

Planned paid report

Get supplier and catalog brands, original and mapped size/colour values, applied rules, source lines, amounts, decisions, and findings in one review CSV.

Full reports are free during the current beta. Paid checkout has not launched.

—Proposed / report

What will my CSV contain? Compare the sample input and output files

This synthetic example shows the download format. It is separate from your files and findings above.

SUPPLIER → CATALOG → REVIEWSynthetic sample

supplier.csv5 of 12 rows shownDownload sample CSV ↓

Supplier catalog excerpt, synthetic data
CSV line	Item code	Product	Brand	Size	Colour	Retail EUR
2	00101	Everyday tee	Northline	M	NVY	29,00
5	00104	Canvas overshirt	Northline	L	Olive	89,00
6	00105	Utility trouser	Northline	32	Black	69,00
7	00105	Utility trouser second delivery	Northline	32	Black	69,00
13	00110	New season tote	Northline	One size	Ecru	19,00

Original supplier labels and comma-decimal retail amounts. Values are shown as they appear in the CSV. Scroll horizontally to see more columns.

shopify.csv3 of 10 rows shownDownload sample CSV ↓

Shopify export excerpt, synthetic data
CSV line	URL handle	Title	Vendor	Option1 name	Option1 value	Option2 name	Option2 value	SKU	Price
2	everyday-tee	Everyday tee	Northline	Size	Medium	Colour	Navy	00101	29.00
5	canvas-overshirt	Canvas overshirt	Northline	Size	Large	Colour	Olive	00104	79.00
6	utility-trouser	Utility trouser	Northline	Size	32	Colour	Black	00105	69.00

The same references in the existing Shopify catalog. Supplier SKU 00110 has no catalog row in this example. Scroll horizontally to see more columns.

report.csv5 of 12 rows shownDownload sample CSV ↓

Review CSV excerpt, synthetic data
CSV line	SKU	Result	Supplier brand	Supplier option 1	Mapped supplier option 1	Catalog option 1	Option 1 applied rule	Supplier option 2	Mapped supplier option 2	Catalog option 2	Supplier amount	Catalog amount
2	00101	matched	Northline	M	Medium	Medium	M => Medium	NVY	Navy	Navy	29.00	29.00
5	00104	review	Northline	L	Large	Large	L => Large	Olive	Olive	Olive	89.00	79.00
6	00105	blocked	Northline	32	32	32	—	Black	Black	Black	69.00	69.00
7	00105	blocked	Northline	32	32	32	—	Black	Black	Black	69.00	69.00
13	00110	outside_catalog	Northline	One size	—	—	—	Ecru	—	—	—	—

Selected 12 of 29 report columns. Download includes brand pairs, original and mapped option values, rules, brand scope, original amounts, row references, decisions, and findings. Scroll horizontally to see more columns.

Example only: size and colour rules are explicitly confirmed for Northline; both amount columns are assumed to be EUR retail prices on the same tax basis. Your own scan requires your confirmation. The review CSV is not a Shopify import file. Import SKU columns as text in your spreadsheet to preserve leading zeros.

Complete review report

04 / Review

Supplier row / SKU	Labels & amount	Finding	Decision	Inspect source

Comparison report only. Inventory, images, delivery splits, taxes, and unmapped fields are not verified. Decisions do not approve a Shopify import.

Need help with your files?

UTF-8 CSV only · up to 2 MB / 5,000 rows each · comparison report, no store changes

Contact support ↗