Categories
All categories
Explore tool collections by topic, including CSV tools, Excel tools, file conversion tools, and data cleaning tools.
CSV Tools
Explore free online CSV tools to clean data, remove duplicates, validate file structure, sort rows, filter records, merge files, split files, and more.
Excel Tools
Use these free Excel tools to convert spreadsheet files into CSV or JSON formats and prepare Excel data for other workflows.
File Conversion Tools
Convert data files between common formats like CSV, JSON, and Excel using simple online tools.
Data Cleaning Tools
Clean and prepare your data with tools for removing duplicates, deleting empty columns, validating file structure, filtering rows, and organizing CSV files.
Browse tools and guides by category
Categories make it easier to explore related tools and guides across the site. Instead of browsing every page individually, you can focus on CSV tools, Excel tools, file conversion workflows, or data cleaning tasks depending on what you need to solve.
This category structure also helps connect tools with guides, making it easier to find practical workflows for converting files, validating data, cleaning datasets, and preparing structured information for imports, reports, and automation.