CSV to Excel
Convert a CSV file to Excel (.xlsx) in your browser. Download a real spreadsheet — nothing is uploaded.
Free web browser tools
CSV
Open a CSV on your device to convert formats, clean rows, filter columns, or export to Excel and other formats locally.
Excel to CSV
Convert Excel .xlsx or .xls to CSV in your browser. Choose a sheet and delimiter, then download.
CSV viewer
Open and browse a CSV in a paginated table in your browser. No upload — view large files locally.
Merge CSV files
Combine multiple CSV files into one in your browser. Rows are stacked and headers aligned by name.
CSV to XML
Convert CSV rows into structured XML in your browser. Each row becomes an element — nothing is uploaded.
CSV to SQL
Generate SQL INSERT statements from a CSV file in your browser. Set a table name and download .sql.
CSV to HTML table
Turn a CSV into a styled HTML table in your browser. Preview the markup and download an .html file.
CSV to Markdown table
Convert CSV data into a Markdown table for READMEs and docs. Runs locally in your browser.
CSV to PDF
Convert a CSV to a print-ready PDF table in your browser. Large files include the first 500 rows.
CSV to vCard
Convert a contact CSV to vCard (.vcf) in your browser. Map name, email, and phone columns, then export.
CSV editor
Edit CSV cells in a spreadsheet grid in your browser. Add or delete rows, then download CSV or Excel.
CSV analyzer
Inspect a CSV for row and column counts, inferred types, and file size — entirely in your browser.
CSV validator
Check a CSV for uneven columns and quoting errors in your browser. Review issues before using the file.
Split CSV
Split a large CSV into smaller files by row count. Download a ZIP of chunks from your browser.
Remove duplicate CSV rows
Remove duplicate rows from a CSV in your browser. Optionally dedupe on selected columns only.
Change CSV delimiter
Change a CSV delimiter between comma, semicolon, and tab in your browser, then re-export the file.
Sort CSV
Sort CSV rows by any column, ascending or descending, in your browser — then download the sorted file.
Filter CSV with SQL
Run SQL SELECT queries on a CSV in your browser (table name data). Export matching rows locally.
Extract CSV columns
Extract selected columns from a CSV into a new file in your browser. Keep only the fields you need.
Compare CSV files
Compare two CSV files by full row and see counts only in A, only in B, or in both — in your browser.
TSV to CSV
Convert TSV or other delimited text to clean CSV in your browser. Paste text or open a file.
Excel to CSV with delimiter
Export an Excel sheet to CSV with a comma, semicolon, or tab delimiter — entirely in your browser.
TSV to Excel
Convert TSV or other delimited text to Excel (.xlsx) in your browser. Paste text or open a file.
CSV FAQs
How are tags used on ReallyUseful.Tools?
Tags group tools by shared traits such as file converter, in browser, or privacy friendly so you can filter the directory by feature.