LIVE DEMONSTRATION / LOCAL BROWSER EXECUTION

Run the check.
Inspect the evidence.

Use the synthetic sample or select two CSV exports. This browser demonstration applies exact key matching and exact field equality. Files are processed locally and are not uploaded.

MIGRAVEN / REVIEW WORKSPACE

Comparison setup

01
Source exportBaseline dataset
Sample loaded
accounts_source.csv
02
Target exportPost-migration dataset
Sample loaded
accounts_target.csv
03
Define the comparisonOne unique key · up to 32 selected fields
Fields to compare
Load datasets to choose fields.
04 / COMPARISON RESULT

Review summary

NOT RUN
PAIRED KEYS—
VALUE DIFFERENCES—
SOURCE ONLY—
TARGET ONLY—
Observed findingsRun a comparison to populate the register.
KEYFIELDSOURCETARGETROWSSTATUS
No comparison has been run yet.
A difference is an observation, not proof of a migration defect. A one-sided key may reflect extraction scope, timing or filtering. PASS applies only to the selected key and fields.
⌑

Local by design. The demo reads files in this browser tab. It does not upload, save or transmit them. Closing or refreshing this page clears the session.

NO SERVER UPLOAD
WHAT THIS DEMO PROVES

A working comparison.
Not a certification.

The website demo demonstrates the comparison workflow with browser-side JavaScript. The downloadable production engine is implemented in C17 and has its own CLI, tests and evidence utilities.

INCLUDED

CSV parsing, unique-key validation, exact field comparison, one-sided key detection and JSON export.

NOT INCLUDED

JSONL upload, normalization, schema mapping, transformation checks, database connectors or full migration assurance.

Read the method and trust boundaries →