File Format Converter

Convert files client-side: CSV ↔ JSON, JSON ↔ YAML, JSON ↔ XML, CSV → Markdown, and more with instant preview.

Capabilities

Key Features

  • 10 Essential Conversion Modes: CSV ↔ JSON, JSON ↔ YAML, JSON ↔ XML, CSV → Markdown Table, JSON → SQL, Markdown → HTML, and TXT → Markdown
  • YAML conversion powered by industry-standard js-yaml parser
  • High-performance CSV parsing and unparsing powered by Papa Parse
  • Native in-browser XML DOM serializer and parser
  • Dynamic SQL INSERT statement generator with custom table naming
  • GitHub-Flavored Markdown table generator from spreadsheets and CSV files
  • Configurable CSV delimiters: Comma (,), Semicolon (;), Tab (\t), and Pipe (|)
  • Drag-and-drop file upload with automatic extension detection and instant downloads
  • 100% private and offline: zero server transmissions or data logging
Quick Guide

How to use

1

Choose your conversion path

Select your source and target formats from the toolbar (e.g., CSV to JSON, JSON to YAML, XML to JSON, or CSV to Markdown Table).

2

Paste your data or upload a file

Paste your raw text, click 'Sample' to load an example, or drag and drop a file from your device.

3

Adjust conversion parameters

Customize delimiters for CSVs, table names for SQL statements, or root tags for XML outputs.

4

Download or copy the converted file

Inspect the live preview on the right, then click 'Download File' or 'Copy' to use your formatted result.

Technical Guide

About File Format Converter

File Format Converter is a high-speed, privacy-first multi-format data transformer for developers and data analysts. Effortlessly convert between CSV, JSON, YAML, XML, SQL INSERT statements, Markdown tables, and HTML. Featuring custom delimiter detection, schema options, syntax diagnostics, and one-click file downloads, all conversions execute 100% locally inside your browser with zero server uploads.

FAQ

Frequently Asked Questions

No. All parsing, serialization, and conversions execute 100% locally inside your web browser. Your private customer records, financial datasets, API configs, and proprietary code never leave your device.