Converters
Convert between data formats, units, and encodings with precision. Transform JSON to CSV, Markdown to HTML, units of measurement, and much more -- all in your browser.
No sign-up · No data sent to servers · Instant results
Color Converter
Convert colors between HEX, RGB, HSL, and more
Use tool →Timestamp Converter
Convert between Unix timestamps and dates
Use tool →YAML/JSON Converter
Convert between YAML and JSON formats
Use tool →Number Base Converter
Convert between binary, octal, decimal, and hexadecimal
Use tool →CSS Unit Converter
Convert between px, rem, em, pt, and other CSS units
Use tool →Age Calculator
Calculate exact age in years, months, and days
Use tool →Markdown to HTML Converter
Convert Markdown to clean HTML code
Use tool →Text to Binary Converter
Convert text to binary and binary to text
Use tool →JSON to CSV Converter
Convert between JSON and CSV formats
Use tool →Percentage Calculator
Calculate percentages, increases, decreases, and changes
Use tool →Unit Converter
Convert between length, weight, temperature, speed, and more
Use tool →Currency Converter
Convert between 30+ world currencies with multi-currency comparison
Use tool →Cooking Converter
Convert between cooking measurements with ingredient-specific densities
Use tool →Related Guides
How to Calculate and Reduce Your Carbon Footprint
Calculate your personal carbon footprint and discover the most effective ways to reduce it. Data-driven strategies ranked by actual impact.
Read guide →How to Create a Wedding Budget: Complete Planning Guide
Create a realistic wedding budget with our complete breakdown. Average costs by category, money-saving tips, and a free wedding budget calculator.
Read guide →How to Save Money on Electricity: Practical Tips That Work
Reduce your electricity bill with proven strategies. Learn which appliances cost the most, smart thermostat savings, and how to calculate your energy usage.
Read guide →How to Calculate Concrete for a Project: DIY Guide
Learn how to calculate the right amount of concrete for slabs, footings, and posts. Includes formulas, waste factors, and tips to avoid ordering too much or too little.
Read guide →Frequently Asked Questions
What types of converters are available?▾
NexTool offers converters for data formats (JSON to CSV, YAML to JSON, Markdown to HTML), encoding (Base64, HTML entities, text to binary), and unit conversions (currency, length, weight, temperature, and more).
How accurate are the unit converters?▾
Our converters use precise conversion factors and formulas. All calculations happen in your browser with full floating-point precision, giving you reliable results every time.
Can I convert multiple values at once?▾
Many of our converters support batch conversion. For unit conversions, you can also visit our dedicated conversion pages at /convert for quick, purpose-built tools.
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