Data Profiler

Understand your datasets instantly. ChatDB profiles CSV, Parquet, and JSON files directly in the browser, surfacing missing values, distributions, and the most common entries — no uploads required.

Why profile your data first?

A quick profile reveals hidden quality issues before you build dashboards, train models, or ship data pipelines. Catch missing values, unexpected formats, and skewed distributions early.

What you get in a profile

  • Null counts and missing-value percentages per column.
  • Distinct value counts to spot duplicates quickly.
  • Min, max, and average values for numeric fields.
  • Top values and distributions for a fast sense check.
  • Downloadable JSON and Markdown reports for sharing.

Explore other tools

CSV Editor

Clean, filter, and export CSVs locally in the browser.

Parquet Reader

Explore Parquet datasets with fast, in-browser previews.

JSON Formatter

Validate and format JSON before exporting or sharing.