Data Conversion Tools
20 free browser-based conversion tools for JSON, CSV, YAML, HTML, Markdown, Base64, Unicode, and more. All processing happens locally — your data never leaves your browser.
JSON to CSV
Convert JSON arrays to CSV format
CSV to JSON
Convert CSV data to JSON format
JSON to YAML
Convert JSON to YAML format
YAML to JSON
Convert YAML to JSON format
JSON to TypeScript
Generate TS interfaces from JSON
Markdown to HTML
Convert Markdown to raw HTML
HTML to Markdown
Convert HTML to Markdown syntax
Base64 Codec
Encode & decode Base64 strings
Image to Base64
Encode images to Base64 strings
Base64 Image Previewer
Preview Base64 encoded images
URL Encoder / Decoder
Encode & decode URL components
Unicode Converter
Text to Unicode code points & UTF-8
ASCII Converter
Convert between text & ASCII codes
HTML Entity Decoder
Encode & decode HTML entities
Text to Binary
Convert text to binary, hex & octal
Number Base Converter
Binary, octal, decimal & hex
Hex to RGB
Convert HEX colors to RGB & HSL
Px to Rem
Convert pixels to rem & em units
Temperature Converter
Convert Celsius, Fahrenheit & Kelvin
File Size Converter
Convert KB, MB, GB, TB & more