Data Tools – Small Tools. Big Help.
Welcome to SmallToolsOnline.com — your go-to toolkit for working with data quickly and efficiently. Our collection of smart browser-based data tools helps you analyze, convert, clean, and format data instantly — all without installing any software or sending your data anywhere.
From simple JSON formatters and CSV converters to advanced data encoders, hash generators, and data validators, every tool runs directly in your browser using fast JavaScript processing.
Whether you're a developer processing files, an analyst cleaning datasets, or a student learning about structured data — Small Tools Online helps you do it faster, smarter, and safer.
All Data Tools
Merge, split, rotate, and reorder PDF files.
Convert JSON data structure into CSV format.
Convert Excel spreadsheets into JSON data client-side.
Convert JSON data into downloadable Excel file on browser.
Convert comma separated values into XML format in browser.
Convert XML structured data into CSV via JavaScript.
Format JSON data with indentation for readability.
Remove whitespace from JSON to shrink size in browser.
Format XML for readability right in browser.
Remove whitespace and line-breaks from XML client-side.
Remove duplicate rows from CSV data in the browser.
Combine several CSV files into one dataset client-side.
Apply filters to JSON data arrays in browser.
Sort arrays of JSON objects by key or value in browser.
Count the number of rows or items in your data file.
Find unique values in one column of dataset client-side.
Generate pivot tables from data sets in browser.
Flatten nested JSON objects into a flat dataset client-side.
Convert flat key-value dataset into nested JSON in browser.
Merge two datasets (CSV/JSON) together in browser.