Data Utilities
Data Tools
Free browser-based tools for converting, cleaning, viewing, recoding and preparing CSV, JSON and other structured data.
Available tools
Choose a tool to get started.
CSV to JSON Converter
Convert CSV data into structured JSON directly in your browser.
JSON to CSV Converter
Convert JSON arrays and objects into clean CSV output for spreadsheets and analysis.
CSV Viewer
Open and inspect CSV files in a clean table without spreadsheet software.
CSV Data Cleaner
Clean CSV data by trimming spaces, removing blank rows, standardizing headers and fixing common issues.
Remove Duplicate Rows
Detect and remove duplicate records from CSV or pasted tabular data.
CSV Merger
Combine multiple CSV files with matching columns into a single dataset.
CSV Splitter
Split large CSV files into smaller files by row count or selected grouping fields.
Custom Group Generator
Create grouped categories from numeric data using custom ranges, such as age groups, income bands, score ranges or other classifications.
Binary Variable Generator
Create a new 0/1 or Yes/No variable from one or more conditions in your data.
Date to Age Calculator
Calculate age from date of birth using a selected reference date.
Value Label Mapper
Map coded values such as 1, 2 and 3 to descriptive labels in a dataset.
Quantile Group Generator
Create percentile, quartile, quintile or other quantile-based groups from numeric data.
About Data Tools
Free browser-based tools for converting, cleaning, viewing, recoding and preparing CSV, JSON and other structured data. New utilities will be added as the collection grows.