CSV

These tools are for when you want to look inside a CSV file, or move it to another format. Alongside an in-browser preview, they convert to and from JSON and JSON Lines, Excel (xlsx), SQL INSERT statements, Markdown tables, HTML tables, and XML, and diff two CSV files. Files are processed in your browser and never uploaded.

CSV Viewer

Format and show selected CSV file on display.

Convert JSON to CSV

Convert array of object in JSON format to CSV.

CSV to JSON Converter

Convert a CSV file into a JSON array of objects. Choose the delimiter and whether the first row is a header, then copy or download the result. Everything runs in your browser — nothing is sent to a server.

CSV to SQL Converter (INSERT Statement Generator)

Convert CSV files into SQL INSERT and CREATE TABLE statements. Supports MySQL, PostgreSQL, and SQLite dialects with automatic column type detection (integer, decimal, string). Conversion runs entirely in your browser; no...

CSV to Markdown Table Converter

Convert CSV files into Markdown table syntax (`| col1 | col2 |`). Choose the delimiter, whether to use the first line as a header, and column alignment (left, center, right). The result can be copied or downloaded. Conve...

Markdown Table to CSV Converter

Convert a Markdown table (`| col1 | col2 |`) into CSV or TSV. Handy for pulling tables exported from GitHub Wiki, Notion, or Confluence into Excel or a spreadsheet. Conversion runs entirely in your browser; no data is se...

CSV to HTML Table Converter

Convert CSV files into an HTML snippet using <code>&lt;table&gt;&lt;tr&gt;&lt;td&gt;</code> markup. Choose the delimiter, whether to use the first line as a header, and whether to wrap the rows in <code>&lt;thead&gt;</co...

HTML Table to CSV Converter

Paste a source containing an HTML <code>&lt;table&gt;</code> tag to convert it into CSV/TSV. Handy when you want to copy a table from another site into a spreadsheet. Header rows inside thead are automatically recognized...

CSV to XML Converter

Paste CSV/TSV data to convert it into XML, where each row becomes a <row> element (format: <row><column1>value</column1>...</row>).

CSV to Excel Converter

Convert CSV/TSV files to Excel (.xlsx) format. Files are processed entirely in your browser and never sent to a server.

Excel to CSV Converter

Convert an Excel (.xlsx) file to CSV format. The file is processed entirely in your browser and is never sent to a server.

CSV Diff Checker

Compare two CSV files and instantly see added rows, removed rows, and changed cells. Pick any column as the row key to match rows, view before/after values side by side, and compare CSVs with different column layouts. Ev...

XML to CSV Converter

Paste XML text with repeating <row><column1>value</column1>...</row> records and convert it to CSV/TSV.

CSV ⇔ JSON Lines (JSONL) Converter

Convert between CSV files and JSON Lines (JSONL, one JSON object per line). Choose your delimiter, and rows with inconsistent keys are merged automatically. Conversion runs entirely in your browser; nothing is sent to a...