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Online CSV Tools is the CSV-specific arm of the OnlineTools.com family with 30+ tools for converting, encoding, manipulating columns, and validating CSV files.
Wraps all CSV fields in double quotes.
Adds a new column at the end of a CSV file.
Transposes CSV columns into rows.
Transposes CSV rows into columns.
Swaps the column separator (comma → tab, semicolon, pipe, etc.).
Swaps the field-quoting character to a different one.
Removes a column from a CSV file.
Pulls specific columns out of a CSV file.
Replaces missing CSV values with chosen placeholder data.
Identifies rows in a CSV that have missing values.
Inserts a column at a chosen position in a CSV file.
Adds a new column at the start of a CSV file.
Strips double-quote characters from all CSV fields.
Substitutes a column with new values.
Sorts rows by the values in one or more CSV columns.
Exchanges the positions of two CSV columns.
Flips rows and columns of a CSV table.
Removes leading and trailing whitespace from CSV values.
Shortens values in chosen CSV columns to a maximum length.
Converts JSON arrays into CSV with automatic column detection.