CSV Column Filter & Slicer
Pick specific columns, rename headers, and apply row filters to trim bloated datasets down to exactly what you need.
1. Load Source CSV
Drag & drop your CSV file here, or browse
2. Select & Rename Columns
3. Conditional Row Filter (Optional)
Live Filtered Table
What is a CSV Column Filter & Slicer?
A CSV column filter is an analytical data preparation utility that extracts a subset of columns and rows from multi-column tabular spreadsheets. It allows data engineers, marketers, and analysts to strip proprietary or non-essential fields (such as internal database IDs or PII), rename headers, apply threshold filters, and generate lightweight, purpose-built data exports.
How to filter and slice CSV columns
- Import your spreadsheet: Drop your CSV into the upload box or paste raw delimited text.
- Select columns to include: Uncheck the checkboxes for any columns you want to omit from the export.
- Apply conditional row filters: Choose a column and define a criteria condition (such as values containing a keyword or exceeding a numeric threshold).
- Download clean dataset: Export the sliced table directly as a CSV or Microsoft Excel workbook.
Need to combine multiple datasets after filtering? Try our CSV Merge & Combiner, or clean duplicate entries with our CSV Cleaner & Formatter.
Frequently asked questions
How do I select which columns to keep or remove?
Once your CSV is loaded, the tool extracts all headers and displays interactive checkboxes. Simply uncheck any unwanted columns (such as internal IDs or private phone numbers), and they will be instantly purged from the exported dataset.
Can I filter rows based on specific conditions?
Yes. You can filter rows using conditions such as "Contains", "Equals", "Does Not Equal", "Greater Than", or "Less Than" on any column in your spreadsheet.
Can I rename column headers before exporting?
Yes. Each active column features an editable rename field so you can standardize column names before downloading or importing into another system.
Is my spreadsheet sent over the internet?
No. All column slicing, row filtering, and file reconstruction execute entirely in your web browser using client-side JavaScript. Your confidential records never leave your machine.
Can I download the filtered result as both CSV and Excel?
Yes. You can export as a clean comma-separated .csv file or download an OpenXML .xlsx Microsoft Excel workbook with one click.