CSV & Data Tools

Inspect and transform structured records with quoted-field-aware parsing.

Choose the operation that matches your task. Each tool explains its limits, accepts local input and lets you copy or download the result. Your original files remain unchanged.

CSV Viewer

Inspect quoted CSV data as a readable table.

CSV Cleaner

Clean whitespace, capitalization, empty rows and repeated rows in CSV data.

CSV Duplicate Remover

Keep the first copy of each exact CSV row while preserving headers and order.

CSV to JSON

Convert CSV records into a JSON array with named fields.

JSON to CSV

Convert an array of JSON objects to CSV with a union of object keys.

CSV to TSV

Convert comma-separated records to quoted tab-separated data.

TSV to CSV

Convert tab-separated records into correctly quoted CSV.

CSV Column Extractor

Extract one numbered column from each CSV record.

CSV Column Merger

Append a combined column made from the selected CSV fields.

CSV Column Splitter

Split a chosen CSV column using a literal separator and pad short records.

CSV Row Filter

Keep rows whose chosen column contains a literal text value.

CSV Validator

Check CSV quoting and confirm consistent column counts.

CSV Formatter

Normalize CSV quoting and record separators without changing field values.

CSV Column Reorder

Rearrange columns using an explicit sequence of column numbers.

CSV Row/Column Transposer

Swap CSV rows and columns while preserving field contents.

Choosing a tool

Use one operation at a time and check the result before replacing important source data. CSV utilities parse structured records; text tools work on physical lines. Those are different when quoted CSV fields contain line breaks.

Where is processing performed?

Tool input and file contents are processed locally in your browser. Opening a page still sends ordinary page requests to the hosting provider.