Spreadsheet & CSV Tools
Work with tables without opening a spreadsheet program. Turn CSV into Excel workbooks and back, export sheets as JSON, preview large files, combine or split them, remove duplicates and blank rows, and convert column letters to numbers.
CSV to Excel
Turn CSV files into proper Excel workbooks without the usual import problems. The…
Excel to CSV
Export spreadsheets to clean CSV files. Each sheet of a workbook becomes its own…
Excel to JSON
Turn a spreadsheet into JSON that code can use straight away. Pick a sheet, decide…
Excel Formula Generator
Get the formula you need without memorising syntax. Choose a task, such as looking…
Excel Column Converter
Find out which number a column letter stands for, or which letters belong to a…
TSV to CSV
Change tab-separated data into comma-separated data, or the other way round. Paste…
CSV Viewer
Look inside a CSV file without a spreadsheet program. Drop the file to see it as a…
CSV Merger
Stack several CSV files into one. The merger lines up columns by their header…
CSV Splitter
Break a large CSV file into manageable pieces. Split it into files of a fixed…
CSV Cleaner
Tidy a messy CSV before it causes an import error. Tick the problems you want…
JSON Lines Formatter
Tidy up JSON Lines files such as logs, event streams and machine-learning…
JSON Lines Validator
Check a JSON Lines file before a pipeline or training job chokes on it. Every line…
JSON Lines to CSV
Turn a JSON Lines file into a spreadsheet-ready CSV. The columns are the union of…
CSV to JSON Lines
Turn a CSV file into JSON Lines, one object per row with the header row as keys.…
TSV to JSON
Convert tab-separated data, including what you get when copying cells from Excel…
JSON to TSV
Turn JSON records into tab-separated values that paste straight into a spreadsheet…
CSV to Markdown Table
Paste CSV, or copy cells from a spreadsheet, and get a GitHub-flavoured Markdown…
Markdown Table to CSV
Paste a Markdown document and get its tables as CSV for a spreadsheet or database.…
CSV to SQL
Turn a CSV file into a SQL script you can run. The header row gives the column…
SQL to CSV
Get table data out of a SQL dump without restoring it into a database. Paste the…
SQL to XML
Turn the data in a SQL dump into XML. Every table with INSERT rows becomes an…
XML to CSV
Turn an XML document into a table. The converter finds the repeating elements that…
XML to YAML
Turn XML into clean, readable YAML. Elements become keys, elements that repeat…
YAML to XML
Turn YAML into XML that any parser accepts. Mappings become nested elements, lists…
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