WORKLAZY TOOLS

CSV, JSON & HTML Table Converter

Freely convert between CSV files, JSON arrays, and HTML table data directly in your browser environment.

Use this tool directly in your browser without installing software or signing in.

CSV

Uses the first row as column names, and interprets cells with quotes, commas, and line breaks using standard CSV quote rules.

JSON / HTML

This is a basic structural example using string values. For number or date formats included in your files, run the converter and check the preview to see how they are inferred and displayed.

How are column names determined when converting JSON to CSV?

Use this to turn a CSV saved in Excel into JSON to pass to a program, or to create an HTML table to embed in a webpage. This tool does not rewrite the table's content; it simply converts the same data into a different display format.

Ensure that the column names in the first row, like 'Name' or 'Quantity', are clear. Since some cells might contain commas or line breaks, it is better to check the number of rows/columns and cell contents in the conversion result rather than simply splitting the CSV by commas in Notepad.

Examples and Selection Help

In this example, values are shown as strings. Check the converted output before using it in another program.

Frequently asked questions

Are large CSV files supported?

Processed as a separate task within the browser's memory limit. Hundreds of thousands of rows may take time depending on file size and device memory.

Are scripts inside HTML executed?

No. It only extracts text from table cells and does not insert or execute the input HTML on the screen.

Are Excel's colors and formulas transferred too?

This is a data conversion between CSV, JSON, and HTML tables. Do not use it as a tool to transfer the cell formatting, formulas, or charts of an Excel workbook exactly as they are.

What should I check if Korean characters are garbled?

Check the character encoding settings used to read the CSV and how the original file was saved. First, look at the preview before conversion to see if the Korean characters and delimiters are read correctly.