Data & CSV
Make structured data readable, useful and ready for the next step.
JSON formatter and validator
Tool: Data & CSVValidate and format JSON without rounding large integers.
Bar, line and pie chart maker
Tool: Data & CSVTurn labelled values into a bar chart, line graph or pie chart with a clear preview, SVG image and CSV download.
Bulk file renamer
Tool: Data & CSVPreview new filenames with prefixes, replacements and numbering, then download a renamed ZIP.
CSV and JSON converter
Tool: Data & CSVConvert CSV records to JSON and JSON records to quoted CSV.
CSV column organiser
Tool: Data & CSVSelect, reorder and rename CSV columns.
CSV deduplicator
Tool: Data & CSVRemove duplicate CSV records using all columns or selected key columns.
CSV joiner
Tool: Data & CSVJoin two CSV tables on a shared key using inner or left joins.
CSV merger
Tool: Data & CSVCombine two CSV tables, aligning columns by their headings.
CSV pivot and aggregation
Tool: Data & CSVGroup CSV records and calculate counts, sums, averages, minimums or maximums.
CSV row filter
Tool: Data & CSVKeep CSV records matching text or numeric conditions in a selected column.
CSV sorter
Tool: Data & CSVSort CSV records by a named column while retaining all row values.
CSV splitter
Tool: Data & CSVSplit CSV data into smaller files while repeating the original headings.
CSV transpose
Tool: Data & CSVSwap the rows and columns of a CSV table, including its heading row.
CSV viewer and editor
Tool: Data & CSVInspect CSV as a table and edit an individual cell by row and column.
Excel to CSV converter
Tool: Data & CSVRead an Excel XLSX workbook, preview a worksheet and export one or all sheets as CSV.
JSON and JSON Lines converter
Tool: Data & CSVConvert a JSON array to JSONL or combine JSON Lines into an array.
JSON and YAML converter
Tool: Data & CSVConvert between JSON and YAML while retaining large integer values.
JSON flatten and unflatten
Tool: Data & CSVFlatten JSON to JSON Pointer values and rebuild it without losing array types.
JSON Patch generator and applier
Tool: Data & CSVGenerate RFC 6902 patches or safely apply a local patch to JSON.
JSON Schema generator
Tool: Data & CSVInfer a draft-07 schema from an example JSON document.
JSON Schema validator
Tool: Data & CSVCheck JSON data against a local draft-07 JSON Schema.
JSON structural diff
Tool: Data & CSVCompare JSON values by structure and show changed JSON Pointer paths.
JSON to TypeScript types
Tool: Data & CSVInfer TypeScript types from a JSON example, including nested arrays and objects.
JSONPath query
Tool: Data & CSVSelect values from JSON using a JSONPath expression with code evaluation disabled.
Scatter plot maker
Tool: Data & CSVPlot numeric X and Y pairs on a scatter graph, with labelled axes, an SVG image and a downloadable data table.
TOML formatter and validator
Tool: Data & CSVValidate TOML configuration and produce consistent formatting.
Venn diagram maker
Tool: Data & CSVCompare two lists as sets and create a Venn diagram showing shared and unique items, with SVG and CSV downloads.
XML formatter and validator
Tool: Data & CSVCheck XML syntax and format element structure without fetching resources.
XPath tester
Tool: Data & CSVRun XPath 1.0 queries on local XML and inspect matching nodes.
YAML formatter and validator
Tool: Data & CSVParse and reformat a YAML document with safe alias limits.
ZIP file extractor
Tool: Data & CSVInspect and extract a supported ZIP archive locally, with limits on expanded files and sizes.
ZIP file maker
Tool: Data & CSVCombine selected files into a ZIP archive on your device, with duplicate-name checks.
Merge CSV files with different columns
Task guideAppend two CSV tables by matching their column headings, retaining extra columns and leaving missing values empty.
JSON formatter and validator
Validate and format JSON without rounding large integers.
Bar, line and pie chart maker
Turn labelled values into a bar chart, line graph or pie chart with a clear preview, SVG image and CSV download.
Bulk file renamer
Preview new filenames with prefixes, replacements and numbering, then download a renamed ZIP.
CSV and JSON converter
Convert CSV records to JSON and JSON records to quoted CSV.
CSV column organiser
Select, reorder and rename CSV columns.
CSV deduplicator
Remove duplicate CSV records using all columns or selected key columns.
CSV joiner
Join two CSV tables on a shared key using inner or left joins.
CSV merger
Combine two CSV tables, aligning columns by their headings.
CSV pivot and aggregation
Group CSV records and calculate counts, sums, averages, minimums or maximums.
CSV row filter
Keep CSV records matching text or numeric conditions in a selected column.
CSV sorter
Sort CSV records by a named column while retaining all row values.
CSV splitter
Split CSV data into smaller files while repeating the original headings.
CSV transpose
Swap the rows and columns of a CSV table, including its heading row.
CSV viewer and editor
Inspect CSV as a table and edit an individual cell by row and column.
Excel to CSV converter
Read an Excel XLSX workbook, preview a worksheet and export one or all sheets as CSV.
JSON and JSON Lines converter
Convert a JSON array to JSONL or combine JSON Lines into an array.
JSON and YAML converter
Convert between JSON and YAML while retaining large integer values.
JSON flatten and unflatten
Flatten JSON to JSON Pointer values and rebuild it without losing array types.
JSON Patch generator and applier
Generate RFC 6902 patches or safely apply a local patch to JSON.
JSON Schema generator
Infer a draft-07 schema from an example JSON document.
JSON Schema validator
Check JSON data against a local draft-07 JSON Schema.
JSON structural diff
Compare JSON values by structure and show changed JSON Pointer paths.
JSON to TypeScript types
Infer TypeScript types from a JSON example, including nested arrays and objects.
JSONPath query
Select values from JSON using a JSONPath expression with code evaluation disabled.
Scatter plot maker
Plot numeric X and Y pairs on a scatter graph, with labelled axes, an SVG image and a downloadable data table.
TOML formatter and validator
Validate TOML configuration and produce consistent formatting.
Venn diagram maker
Compare two lists as sets and create a Venn diagram showing shared and unique items, with SVG and CSV downloads.
XML formatter and validator
Check XML syntax and format element structure without fetching resources.
XPath tester
Run XPath 1.0 queries on local XML and inspect matching nodes.
YAML formatter and validator
Parse and reformat a YAML document with safe alias limits.
ZIP file extractor
Inspect and extract a supported ZIP archive locally, with limits on expanded files and sizes.
ZIP file maker
Combine selected files into a ZIP archive on your device, with duplicate-name checks.