Data Converters
Free online converters for JSON, CSV, YAML, XML, TypeScript, colors, timestamps, and number bases. Transform data from one format to another instantly — great for wrangling API responses, config files, and exports right in your browser.
12 tools in Converters
Color Contrast Checker
Check WCAG contrast ratio between any two colors online, instantly. Free accessibility checker showing Pass/Fail for WCAG AA and AAA levels.
Color Converter
Convert colors between HEX, RGB, and HSL instantly online with a live preview. Free color converter for CSS, Figma, and Tailwind workflows.
Cron Expression Parser
Decode any cron expression into plain English online, instantly. Free cron parser that shows the next scheduled run times — no more guessing.
CSV to JSON
Convert CSV data or spreadsheet files to a JSON array instantly online, for free. Perfect for importing data into APIs and databases — no sign-up.
JSON to CSV
Convert a JSON array to CSV format instantly online, for free. Ready to open in Excel or Google Sheets — great for exporting API data.
JSON to TypeScript
Generate TypeScript interfaces from any JSON object instantly online, for free. Great for typing API responses — nothing leaves your browser.
JSON to YAML
Convert JSON to YAML format instantly online, for free. Paste any valid JSON and get clean, readable YAML output for config file conversions.
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal instantly online. Free number base converter for bitwise ops and memory addresses.
SQL IN Generator
Turn a list of values into a ready-to-use SQL IN clause instantly online. Free tool that adds commas and quotes automatically — no sign-up.
Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and back, instantly online. Supports local time, UTC, and ISO 8601 — free, no sign-up required.
XML to JSON
Convert XML markup to a clean JSON object instantly online, for free. Perfect for parsing SOAP responses, RSS feeds, and legacy XML APIs.
YAML to JSON
Convert YAML configuration files to JSON format instantly online, for free. Perfect for docker-compose, GitHub Actions, and Kubernetes configs.