Convert Data Tools
Browse all 22 free in-browser convert utilities. Your rows never leave your browser.
CSV to JSON
Transform tabular CSV spreadsheets into structured JSON arrays of objects in your browser.
Launch Tool →JSON to CSV
Transform complex JSON arrays and nested API responses into clean, spreadsheet-ready CSV tables.
Launch Tool →CSV to TSV
Convert CSV data into tab-delimited values (TSV) for seamless copy-pasting directly into Excel, Sheets, and bioinformatics tools.
Launch Tool →TSV to CSV
Convert tab-separated datasets (TSV) into standardized comma-separated (CSV) spreadsheets compatible with all platforms.
Launch Tool →TSV to JSON
Transform tab-delimited records (TSV) into structured JSON arrays of objects for web APIs and NoSQL databases.
Launch Tool →JSON to TSV
Convert JSON documents and API arrays into tab-delimited values (TSV) for seamless copy-pasting directly into spreadsheet cells.
Launch Tool →CSV to Markdown Table
Transform CSV files and spreadsheets into clean, padded GitHub-Flavored Markdown tables for documentation and READMEs.
Launch Tool →JSON to Markdown Table
Transform JSON API payloads and data objects into clean, formatted Markdown tables for technical documentation and READMEs.
Launch Tool →CSV to SQL INSERT
Transform spreadsheet rows into clean, batched SQL INSERT statements with proper string escaping and NULL detection.
Launch Tool →JSON to SQL INSERT
Transform JSON API payloads and arrays of objects into structured SQL INSERT statements ready for database migration.
Launch Tool →CSV to TypeScript Interface
Generate strongly-typed TypeScript interfaces, types, and JSDoc comments directly from CSV column headers and sample data rows.
Launch Tool →JSON to TypeScript Interface
Convert JSON payloads and API responses into strongly-typed TypeScript interfaces with recursive sub-type generation.
Launch Tool →Excel to CSV
Convert Excel workbooks (.xlsx, .xls) into clean, standard CSV files with date repair and multi-sheet selection.
Launch Tool →CSV to Excel
Transform CSV files into native Excel workbooks (.xlsx) with preserved leading zeros and styled header rows.
Launch Tool →Excel to JSON
Transform Microsoft Excel workbooks (.xlsx, .xls) directly into clean, structured JSON arrays and objects.
Launch Tool →JSON to Excel
Transform complex JSON documents and API responses into styled, auto-fitted Microsoft Excel workbooks (.xlsx).
Launch Tool →CSV to JSON for Postman
Format CSV test cases and parameters into Postman collection runner JSON data files for automated API testing.
Launch Tool →CSV to JSON Lines
Transform CSV spreadsheets into newline-delimited JSON Lines (JSONL / NDJSON) for BigQuery, Elasticsearch, and AI training datasets.
Launch Tool →JSON Lines to CSV
Transform newline-delimited JSON Lines (JSONL / NDJSON) log files and datasets into clean, tabular CSV spreadsheets.
Launch Tool →JSON Array to CSV with Nested Columns
Export hierarchical JSON arrays into clean CSV tables with flattened dot-notated columns.
Launch Tool →