🔄 Data Conversion Tools

Developer Data Format Converters — All in One Place

Modern software development involves working across a wide range of data serialization formats. An API might return JSON, your configuration might be TOML, your CI/CD pipeline uses YAML, a legacy system expects XML, and your stakeholders need everything in Excel or a nicely formatted HTML table. Converting between these formats manually is tedious and error-prone. These tools automate the conversion completely in your browser — no server round-trip, no data leakage, no account required.

CSV Conversion Tools

The CSV to Excel converter transforms any CSV file into a fully formatted XLSX workbook with auto-detected delimiters, configurable sheet names, and column width optimization. The Excel to CSV converter handles multi-sheet XLSX workbooks and lets you pick any sheet to export with your choice of delimiter. The CSV to SQL converter generates ready-to-run INSERT statements for MySQL, PostgreSQL, SQLite, and SQL Server with auto-detected column types. The SQL to CSV converter parses INSERT statements, MySQL tabular output, and PostgreSQL COPY output back into clean CSV. The CSV to HTML Table tool creates styled tables with Bootstrap, Tailwind, plain CSS, or bare HTML — with a live preview and sortable columns option. The CSV to Markdown converter produces GFM-compatible Markdown tables with per-column alignment and auto-column-width padding.

JSON Converters

The JSON to XML converter maps JSON keys to XML element names, handles nested objects as child elements, and converts JSON arrays to repeated sibling elements. The JSON to TOML converter outputs TOML tables for nested objects and arrays of tables for object arrays. The JSON to JSON Schema generator infers a Draft-07 or 2020-12 schema from a sample. The JSON to HTML Table tool converts JSON arrays to styled tables with a live preview. The JSON to Markdown tool auto-detects the best Markdown format with a live rendered preview.

XML, YAML and TOML Converters

The XML to YAML converter parses the full XML DOM and rebuilds it as a YAML tree. The YAML to XML converter supports Docker Compose, Kubernetes, and GitHub Actions workflows. The TOML to JSON converter handles all TOML constructs including tables, array-of-tables, and all scalar types.