Free · Local · Browser-based

Open, inspect, and convert CSV files

Open a CSV on this page to inspect every row, or choose a focused tool to merge or convert your file. Local viewing and conversion stay in your browser.

Drop a .csv file hereOr choose a file up to 50 MB. Its contents are read in this browser tab and are not uploaded to the site.Choose CSV

CSV tools

Choose the job you need to do

CSV file viewerInspect, filter, sort, and export every parsed row.Sample CSV filesDownload or inspect three documented fictional datasets.Compress CSV filesCreate a byte-exact .csv.gz file locally with native gzip.Merge CSV filesCombine matching files or explicitly union different headers.CSV to JSONCreate an indented array of objects with stable keys.CSV to TSVCreate safe tab-separated text with correct quoting.CSV to ExcelCreate a real .xlsx workbook while preserving text values.CSV to ParquetCreate a real columnar Parquet file with string columns.