Dataset coverage matrix
See which CSV sources contain each required field and how many values are filled.
Accepted files: .csv,.tsv,text/csv. Multiple files supported. Up to 4 MB in total.
A header-only source has a present field with 0/0 values. Only the empty string counts as empty; spaces and zero are values. This checks field coverage, not the accuracy of source records. Up to 1,000,000 characters, 10,000 data records, 100 columns and 100,000 cells across the sources. Files for multi-source tools are limited to 4,000,000 bytes total. Reports retain at most 500 diagnostic findings and state any omitted count. CSV and JSON outputs are limited to 4,000,000 characters. Up to 1,000,000 characters. Review the settings before running.
Your result
How to use Dataset coverage matrix
- Choose CSV files with distinct filenames.
- List the required field names in JSON.
- Download a source-by-field matrix of missing headers and nonempty counts.
Useful next steps
Prepare the source
Choose CSV files with distinct filenames.
Choose the matching rules
List the required field names in JSON.
Review and keep the result
Download a source-by-field matrix of missing headers and nonempty counts. A header-only source has a present field with 0/0 values. Only the empty string counts as empty; spaces and zero are values. This checks field coverage, not the accuracy of source records.