Local data comparison for Windows

Windows desktop software

Compare your data.
Before the next step.

DataPreflight is Windows desktop software for comparing two tabular data files before import, analysis or handoff. Files are processed locally on your computer.

Lite is free. Standard is a one-time purchase for one Windows computer.

01 / Product overview

What is
DataPreflight?

DataPreflight compares two CSV, TSV, XLSX or XLSM data files. You choose the record key and fields to compare, then review matches, value differences and records found on only one side.

The comparison runs on the Windows computer. DataPreflight does not upload the source-file contents or send telemetry. This website provides product information and does not accept data-file uploads.

Both editions produce an HTML report and CSV differences. Standard also produces structured JSON evidence and an XLSX audit workbook, and includes managed profiles and batch reporting.

02 / Intended uses

Before import. Before analysis.
Before handoff.

DataPreflight is intended for people and small teams who need to compare tabular business data before the next processing step.

01

Prepare for an import

Compare current and incoming data before loading it into another application or business system.

02

Review before analysis

Identify changed or missing records before reporting, aggregation or analysis.

03

Check a data handoff

Create reviewable output before passing data to a colleague or another workflow.

A comparison does not guarantee that data is complete, correct or suitable for every downstream use. Results require review in the context of your own workflow.

03 / Pricing

One-time pricing.
No subscription.

Lite is free. Standard is a one-time purchase for one Windows computer. The final amount, including any applicable tax, is shown at checkout.

Lite

Free

Free edition

  • Single data-set comparison
  • GUI rule builder and saved JSON rules
  • HTML report and CSV differences

Download Lite

04 / Availability

Download
and start.

Lite and Standard
Product type
Downloadable Windows desktop software.
Input formats
CSV, TSV, XLSX and XLSM tabular data files.
Delivery
Digital software download with a software license. No physical shipment.
Standard license
A license key is delivered after purchase. Verify it in the app to receive a signed license file for one computer.
Refunds
Refund requests are accepted within 14 days after purchase. See the Refund Policy.
Purchase terms
Review the Terms and Privacy Policy before purchase.

See the current product.

The demo uses sample data and shows the Standard edition.

Watch the demo