Tool World

Data Tools

Free online Data tools on Tool World. Browse every Data utility by subcategory — no signup required.

CSV

CSV Cleaner
Trim cells, drop empty rows, and normalize CSV whitespace.
CSV Column Extractor
Extract selected columns from a CSV into a new file.
CSV Deduplicator
Remove duplicate rows from a CSV by chosen key columns.
CSV Formatter
Clean and reformat CSV (trim, drop empty rows).
CSV Merger
Merge multiple CSV files into one.
CSV Splitter
Split a CSV into multiple files by row count.
CSV to HTML
Convert a CSV into an HTML table.
CSV to Markdown
Convert a CSV into a Markdown table.
CSV to PDF
Convert a CSV file into a printable PDF table.
TSV to JSON
Convert tab-separated values to JSON.

Excel

CSV to Excel
Convert CSV files to Excel XLSX spreadsheets.
Excel to CSV
Convert XLSX spreadsheets to CSV.
Excel to JSON
Convert an Excel sheet into a JSON array of objects.
JSON to Excel
Convert JSON arrays or objects into an Excel (.xlsx) spreadsheet.

JSON

JSON Diff
Compare two JSON documents and highlight added, removed, and changed paths.
JSON Flattener
Flatten nested JSON into dotted keys for spreadsheets and APIs.
JSON Schema Validator
Validate JSON against a JSON Schema (draft-07 subset).
JSONPath Tester
Query JSON with JSONPath expressions and inspect matching values.

SQL

SQL Formatter
Pretty-print SQL queries.