All Commands


Compute summary statistics & infer data types for each column in a CSV.

View on GitHub



Some options may override others.

Please do not input/upload sensitive data.
This site is for demo purposes of the qsv CLI tool.
Larger files? More customization? Click here!
Explore the qsv pro desktop app!

Prefer the terminal? Try the qsv CLI tool!

Disabled Options

  • -j, --jobs <arg>
    The number of jobs to run in parallel. This works only when the given CSV has an index. Note that a file handle is opened for each job. When not set, the number of jobs is set to the number of CPUs detected.
  • --stats-binout <file>
    Write the stats to <file> in binary format. This is used internally by other qsv commands (currently `schema` and `tojsonl`) to load cached stats into memory without having to process/parse the CSV again. If <file> is "NONE", the stats cache will not be written.
  • -o, --output <file>
    Write output to <file> instead of stdout.

Data Table Preview

Preview is limited to 1MB.

Raw Output Preview

Preview is limited to 1MB.