Free · No signup · Browser-based
Validate your CSV.
Check headers, row shape and common structural problems first. Then move to CSV Profiler when you need reusable business rules, composite keys and an auditable pass or fail.
Check headers, row shape and common structural problems first. Then move to CSV Profiler when you need reusable business rules, composite keys and an auditable pass or fail.
Before you load a CSV into a database or send it to a colleague, confirm that its table structure is readable. This validator scans for common structural and inferred issues — missing cells, apparent type mismatches, duplicate rows, entirely empty columns, and blank or auto-named headers. For an explicit pass/fail against your own required, unique, range, pattern, allowed-value and business-key rules, continue to the CSV Data Profiler after this check.
Drag from Finder, click to choose, or paste data directly into the input pane.
Tool controls appear above the output. Tune them and watch the result update live.
Download the cleaned-up file, or click 'Build dashboard' to see what's actually in your data.
Every other CSV utility online makes you upload your file and wait. Ours runs in your browser, instantly, and surfaces what's interesting in the data while it's at it.
Parsed locally — open DevTools → Network and you'll see zero requests when you drop a file.
Tool runs as you change parameters. No 'Convert' button to wait on.
Below the output, a strip tells you what's actually in the data — concentrations, outliers, suggested chart.
If the data made you curious, hit 'Build full dashboard' and it opens in our visualization tool.