CSV or TSV data files
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CSV Column Selector
Keep only the columns you need from a CSV or TSV file.
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No uploadsYour files stay on this device.
Local engineYour browser does the work.
Auto cleanupTemporary memory is released.
About this tool
Use csv column selector without uploading files
Keep only the columns you need from a CSV or TSV file. CSV Column Selector runs in the current browser session, giving you a direct result without sending the source to a Filemazing processing server.
Processing takes place in your browser tab. Temporary working data is released when you leave or reload the page.
Three steps
- Choose or paste the structured input for CSV Column Selector.
- Select the columns, keys, order, or transformation rules to apply.
- Review a sample of the transformed result before downloading it.
Useful for
Common select csv columns tasks
- Using select csv columns without an upload queue
- Cleaning private exports
- Preparing structured data imports
Practical details
What to know before you start
A transformed data file from CSV Column Selector
- Keep an untouched source export so transformed rows can be audited.
- Inspect identifiers, dates, delimiters, and blank values before importing the result.
- Review the CSV Column Selector result before using it in an important workflow.