Data Minimization Checker

Check whether you collect too much data

Data protection principles say you should collect only the data you actually need, and checking against that is good practice. This tool helps you check data collection against the minimisation principle, so you can identify data you gather but do not need.

Why data minimisation matters

Collecting only the personal data you genuinely need for a purpose is a core data protection principle, and it is also simply good security, since data you do not hold cannot be breached. Yet organisations tend to collect more than they need, out of habit or just in case, which increases both compliance risk and the damage of any breach. Checking your data collection against the minimisation principle surfaces the fields you gather without a clear need, which are candidates to stop collecting. It reframes data from an asset to hoard into a liability to minimise, which is the modern, defensible position.

Collect less, safely

It runs entirely in your browser, so nothing you paste is uploaded, which matters when the input is your own code, configuration or security-sensitive data.

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