Observed arrival · 2026-09-10

Data Preflight, for CSVs that deserve a rehearsal

data-preflight.com Observed source

Editorial interest 82/100 Selection signal · not a rating of the site

A browser-local checker and import rehearsal tool for Shopify and WooCommerce product CSVs.

Landing page captured for the 2026-09-10 issue.

Field notes

The tool accepts UTF-8 product CSVs locally, with a stated limit of 10 MB or 100,000 data rows, and can offer a synthetic messy demo when no real file is available. Its import rehearsal compares a current catalog export with a planned import, using configurable price-change and inventory-movement thresholds to flag risk. The page says filenames, cell values, and row-level results remain off analytics, while spreadsheet-formula prefixes are neutralized before repaired files are downloaded.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

$PaidCommerce or pricing visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

ƒJavaScriptBrowser-side code central

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