Check & prepare data
Review CSV exports and JSON without quietly changing your identifiers.
Compare two CSV exportsMatch unique identifiers across exports and review added, removed and changed records with per-field differences.Validate & format JSONCheck JSON syntax and create readable or compact output without rounding numeric identifiers.Clean a CSV for importReview a CSV, tidy its cells and headers, and remove exact duplicate rows without converting identifiers.
Supporting tools & optional helpers (8)
Experimental helpers are functional, but their individual demand has not yet been established.
CSV file previewExperimental helperPreview the header and first records of a CSV using quoted-field parsing.CSV column selectorExperimental helperKeep selected CSV columns and arrange them in the order you specify.CSV row filterExperimental helperKeep CSV rows whose chosen column contains a search string.Merge compatible CSV filesExperimental helperAppend the records of a second CSV to a first file with the same headers.Split CSV into filesExperimental helperSplit a CSV into smaller files by row count and download them together in a ZIP.CSV to JSONExperimental helperTurn CSV records into a JSON array using the first row as property names.JSON diffExperimental helperCompare two JSON objects and show changed values grouped by top-level key.JSON to CSVConvert a JSON array of objects into a CSV with columns from their combined keys.