Excel Column Profiler

What is Excel Column Profiler?

Excel Column Profiler Analyzer is a free, browser-based tool that helps you understand a dataset at a glance. Per-column types, nulls, and uniqueness for every sheet. It's built for speed and privacy: Everything runs locally in your browser — your data is never uploaded to a server. No sign-up, no installs, and no daily limits.

Used by

• Data analysts
• Finance teams
• Operations teams
• Students
• Analysts
• Researchers

Recommended workflow

1. 1

   Prepare the input

   Profile the data first so missing values, types, duplicates, and outliers are visible before you edit it.

2. 2

   Run Excel Column Profiler

   Review the preview, copy or download the result, and keep everything local in your browser.

3. 3

   Next recommended tool

   Excel Workspace: Open multi-sheet Excel — browse, profile, visualize, and export each sheet.

   Open tool
4. 4

   Then continue with

   CSV Column Analyzer: Per-column types, ranges, uniques, nulls.

   Open tool
5. 5

   Then continue with

   Excel Sheet Viewer: Open .xlsx files directly in the browser — sortable, searchable.

   Open tool

Frequently asked questions

How do I use Excel Column Profiler?

Paste or drop your data into the workspace, adjust the options to fit your data, then copy or download the result. Per-column types, nulls, and uniqueness for every sheet.

Is my data uploaded or stored anywhere?

No. Everything runs locally in your browser — your data is never uploaded to a server. Nothing is sent to a server, so it's safe to use with private or sensitive data.

Is Excel Column Profiler Analyzer free?

Yes — it's completely free with no account, no sign-up, no watermark, and no daily usage limits.

What's the maximum file size?

There's no hard limit imposed by the tool. Because processing happens in your browser, the practical ceiling is your device's available memory — most everyday files work instantly.

Do I need to install anything?

No installs and no extensions — it runs entirely in your web browser and even works offline once the page has loaded.