Tabalyst Report

Tabalyst Report analyzes a CSV, JSON, JSONL or Excel file and produces an interactive, self-contained HTML report and a JSON profile of the same analysis. It reads the file once, as a stream, on your computer.

tabalyst report customers.csv

This creates customers.html (the report), customers.json (the profile) and executions.json (the run history) beside the source. Your data is never modified or sent anywhere.

Commands at a glance

Use case	Command	Destination
One file, automatic name	tabalyst report data.csv	data.html beside the source
One file, custom name	tabalyst report data.csv -o report.html	The file report.html
Several files, automatic names	tabalyst report *.csv	Beside each source
Several files, one directory	tabalyst report *.csv -d reports/	The directory reports/
One JSON file	tabalyst report data.json	data.report.html beside the source
One JSONL file	tabalyst report events.jsonl	events.report.html beside the source
One Excel workbook	tabalyst report sales.xlsx	sales.report.html beside the source
One page per column	tabalyst report data.csv --details	The folder data/ beside the report
From a scan document	tabalyst report --scan data.scan.json	data.html beside the scan

What the report shows

• Dataset dimensions, missing cells, duplicates and quality observations.
• Physical and semantic types, with confidence and error rates.
• Numeric, date and string-length analysis, normalization and value distributions.
• Distinct values, representative examples, date formats and detected meanings such as enumerations, email addresses, phone numbers and postal codes.
• CSV record widths, quoting, encoding and delimiter configuration.
• A bounded raw-data preview, while every record is analyzed.

The report is built on Tabalyst Scan. Values of sensitive fields, such as email addresses, are masked by default. Ambiguous dates stay ambiguous: the report shows the evidence without applying it. The HTML works without a network connection or a CDN.

Pages

• Create your first report: a five-minute tutorial on a small CSV file.
• Report CSV files: names, batches, safe behavior and options.
• Report JSON and JSONL files: JSON and JSONL sources, one collection of records per report.
• Report Excel workbooks: .xlsx and .xlsm sources, one table per report.
• JSON profile: the structure of the generated .json file, and its changelog.
• Execution history: the executions.json file.
• Configuration: adapt the analysis and the presentation.