Anonymize data to protect privacy -- for free

Sharrifah Lorenz
5 March 2025

Working with sensitive data is always a pain (we've all been there). Whether you're prepping data for AI, sharing customer info with marketing, or building test environments, the PII struggle is real.

And while we offer PII protection via Census, we recognize that this is a challenge that impacts data teams and consumers far beyond our own product. 

That's why we've built Census Data Anonymizer: a standalone tool that removes sensitive information from your datasets with just a click. It’s completely free to use and operates separately from Census’ core platform.

The goal is simple: empower data and ops teams to work more securely and efficiently--no strings attached. 

The Privacy Problem

Let's face it, working with data containing personal information is a minefield of compliance risks, security vulnerabilities, and manual processes. Whether you're preparing datasets for AI analysis, sharing customer information with your marketing platforms, or creating test environments for your engineering team, the risk of exposing personally identifiable information (PII) is ever-present.

Many teams resort to complex, time-consuming processes to protect sensitive data—often sacrificing data utility in the process or, worse, skipping anonymization altogether due to resource constraints.

Census Data Anonymizer: Privacy Made Simple

Our new Data Anonymizer eliminates these challenges with a solution that's both powerful and refreshingly simple. You can instantly detect and anonymize sensitive information without writing a single line of code, and your data never leaves your device—everything happens locally, with nothing stored or accessed by Census. The best part? It's completely free to use. Check it out below:

Let’s say you’re a marketing team at a highly regulated financial enterprise, and you would like to create segments of customers to share with advertising platforms. With Data Anonymizer, you can remove PII before sharing customer segments ensuring compliance while preserving your ability to effectively reach your potential customers.

Data and Analytics teams can also create anonymized datasets for machine learning models and BI tools while maintaining statistical relevance, and Compliance and Security teams can meet regulatory requirements like GDPR, CCPA, and HIPAA without implementing complex workflows or expensive tools.

How It Works

Using Census Data Anonymizer couldn't be easier. Upload your dataset (CSV, Excel, etc.), select which types of PII to anonymize (names, emails, phone numbers, addresses, etc.), and download your anonymized data. Census automatically detects which columns contain PII  to make getting started even easier. That's it! No complex configurations, no coding knowledge required, and absolutely no data leaving your device.

Privacy by Design

What makes our anonymizer different is our commitment to privacy at the foundation. We've built the tool with 100% client-side processing, zero data storage or transmission of uploaded data, simple anonymization techniques, and careful preservation of your data format and structure.

Get Started Today

The Census Data Anonymizer is available now, completely free. No sign-ups, no credit cards, no commitments.

Try Census Data Anonymizer →


At Census, we're on a mission to help businesses use data responsibly and effectively. Our new Data Anonymizer is just one more way we're making that possible. We can't wait to see how you use it to protect privacy while unlocking the value of your data.