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 messy spreadsheet exports, validate file structure, remove duplicates, sort rows, filter records, merge files, split files, and prepare CSV data for imports, reporting, analysis, and automation workflows.
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, validate, and prepare CSV data before imports, reporting, analytics, or automation workflows. Use these tools to remove duplicates, validate CSV structure, filter rows, organize columns, delete empty fields, and fix common formatting issues.
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.