Data Governance Tool
Generate audit-ready data dictionaries with schema, data types, sample values, and compliance metadata. Master GDPR Article 30, SOC 2, and ISO 27001 requirements.
Private by design
For file-based tools, processing is designed to happen in your browser. Avoid uploading confidential files to any website unless you are comfortable with the workflow and have permission to use the data.
Use responsibly
Use the result as a practical first pass, then verify any important decision with the appropriate source or professional.
Free access
ToolDox tools are free to use, require no signup, and are supported by clear navigation, guides, templates, and related tools.
Related Tools
What is a data dictionary?
A data dictionary is a reference document that describes every column in a dataset — its name, data type, what it means, example values, and quality metrics. It is the first document a new analyst should create when working with an unfamiliar dataset.
Why generate one automatically?
Writing a data dictionary manually for a 50-column dataset takes hours. This tool does it in seconds by scanning your CSV and extracting type, completeness, uniqueness, and sample values for every column automatically. You can then add your own descriptions before exporting.
What gets exported?
The CSV export contains one row per column: name, detected type, row count, null count, null percentage, unique count, unique percentage, min, max, and three sample values. The Markdown export formats everything as a table ready to paste into a README, Notion page, or Confluence doc.
Frequently asked questions
Can I edit the descriptions before exporting? Yes — click the description field on any row to add your own notes before downloading.
Is my data uploaded anywhere? No. All processing happens in your browser. Your file never leaves your device.