Category
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.
Tools in this category
Browse the main tools related to csv tools and open the one that best matches your workflow.
CSV to JSON
Convert CSV files into formatted JSON.
JSON to CSV
Convert JSON arrays into CSV files.
CSV Cleaner
Clean CSV files by removing empty rows and preparing data for imports, reports, and automation workflows.
Remove Duplicates CSV
Remove duplicate rows from CSV files.
Merge CSV Files
Merge multiple CSV files into one.
Split CSV File
Split a CSV file into smaller parts.
CSV Column Remover
Remove the last column from a CSV file.
Remove Empty Columns CSV
Remove columns that contain only empty values from your CSV file.
CSV Column Selector
Select specific columns from your CSV file and remove the rest.
CSV Header Renamer
Rename one or more CSV headers using a simple mapping format.
CSV Row Counter
Count how many data rows your CSV file contains.
CSV Sorter
Sort your CSV rows by a selected column.
CSV Filter Rows
Filter CSV rows by a column and value.
CSV Add Column
Add a new column with the same value to all CSV rows.
CSV Remove Column
Remove a specific column from your CSV file.
CSV Column Merger
Merge two CSV columns into a new one.
CSV Validator
Validate CSV files online, detect malformed rows, check structure, and find formatting issues before imports or automation workflows.
Guides in this category
Read step-by-step guides connected to csv tools to learn common workflows, cleanup steps, conversions, and validation tasks.
How to Convert CSV to JSON
Learn how to convert CSV to JSON step by step using a simple online tool.
How to Clean a CSV File
Learn how to clean a CSV file by fixing messy data, removing extra spaces, and preparing rows and columns for analysis or import.
How to Remove Duplicates in CSV
Learn how to remove duplicate rows from a CSV file quickly and prepare cleaner data for reports, imports, or analysis.
How to Sort a CSV File
Learn how to sort a CSV file by a selected column for easier review, reporting, and analysis.
How to Validate a CSV File
Learn how to validate a CSV file, check structure, detect malformed rows, and find formatting issues before imports, reports, or automation workflows.
How to Prepare a CSV File for Import
Learn how to prepare CSV files before importing them into systems, databases, or reporting tools.
How to Fix an Invalid CSV File
Learn how to fix invalid CSV files by detecting structural issues, correcting formatting problems, and validating data.
How to Clean Large CSV Files Without Errors
Learn how to clean large CSV files safely by removing duplicates, deleting empty columns, validating structure, sorting rows, and filtering records before import or analysis.
Explore csv tools
This category groups together tools and guides related to csv tools. It helps you find the most relevant workflows faster, whether you need to convert files, validate structure, clean datasets, organize rows and columns, or prepare data for analysis, reporting, imports, and automation tasks.
Browsing by category makes it easier to move between related tools and step-by-step guides, so you can solve data tasks with a more complete workflow instead of using isolated tools one by one. This is especially useful when a task involves multiple steps such as cleaning a file, validating it, and converting it into another format.
Recommended next step
Start with one of the tools listed above if you already know what you need to do. If you want more context first, open one of the guides in this category and follow the workflow step by step.