CSV Profiler

Local inspection of CSV and TSV structure, column quality, and schema shape.

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Dataset Profile

Upload a delimited text file to inspect structure, infer column types, preview rows, and generate SQL and JSON summaries.

Drop a CSV or TSV file here

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Hard limit: 20 MB Profiles up to 200,000 data rows Blocks rows above 250,000 chars
All parsing stays in the browser.

dataset.csv

0 KB

Rows Profiled 0
Columns 0
Duplicate Rows 0
Inconsistent Rows 0
Blank Rows Skipped 0
Parse Time 0 ms

Quality Notes

High-level findings from the current profiled rows.

Numeric Distributions

Approximate bins based on sampled numeric values from profiled rows.

0 columns shown
Column Type Nulls Distinct Profile Sample

Preview Rows

First profiled rows after any detected or selected header row.

CREATE TABLE

Generated from inferred column types.

JSON Summary

Profile output and inferred structure in JSON format.

Reading file...