Online Converters
Transform data between different formats instantly. Convert units, timestamps, dates, colors, images, and data formats with precision. Free tools for developers, scientists, designers, and everyone who needs accurate conversions without complex calculations.
Unix Timestamp
Convert Epoch time to readable dates and vice versa
Unit Converter
Length, weight, temperature, volume, and more
Date Format
ISO, RFC 2822, SQL, and custom date formats
Time Units
Seconds, minutes, hours, days, weeks, years
Color Converter
RGB, HEX, HSL, CMYK color conversions
Angle Converter
Degrees, radians, gradians, turns
JSON to CSV
Convert JSON arrays to CSV spreadsheet format
PNG to JPG
Convert between PNG and JPG image formats
Image to WebP
Convert images to modern WebP format
Why Use Online Converters?
Converters transform data from one format or unit to another. In a world of diverse standards — metric vs imperial, RGB vs HEX, Unix timestamps vs readable dates — conversions are essential for communication, programming, and everyday tasks.
Manual conversions are error-prone and time-consuming. Remembering that 1 mile equals 1.609344 kilometers, or calculating a Unix timestamp for "December 25, 2025 at 3:00 PM EST" requires either memorization or complex calculations. Our converters handle this instantly.
Types of Converters We Offer
- Unit Converters: Length, weight, temperature, volume, speed, and area conversions between metric, imperial, and other systems
- Time & Date Converters: Unix timestamps, date formats, time zones, and duration calculations
- Color Converters: Transform between HEX, RGB, HSL, CMYK, and other color models
- Data Format Converters: JSON to CSV, image format conversions, and encoding transformations
- Mathematical Converters: Angles, number bases, and scientific notation
Key Benefits
- Accuracy: Precise calculations without rounding errors or estimation
- Speed: Instant results — no manual calculations needed
- Convenience: All common conversions in one place
- Privacy: All processing happens in your browser
Who Uses Converters?
Developers & Engineers
Developers constantly work with Unix timestamps, JSON data, color codes, and different date formats. Converting between API timestamp formats, debugging time-related bugs, or transforming data for different systems are daily tasks.
- • Convert Unix timestamps to debug logs
- • Transform JSON to CSV for analysis
- • Convert HEX colors to RGB for CSS
- • Calculate epoch times for API calls
Designers & Creatives
Designers work across tools with different color format requirements. Photoshop might give you RGB, but CSS needs HEX. Print requires CMYK. Image format conversions help optimize assets for web and print.
- • Convert design tool colors to CSS
- • Transform images to web-optimized WebP
- • Convert between RGB and CMYK for print
- • Resize and reformat images for platforms
Scientists & Researchers
Scientific work involves constant unit conversions — converting measurements between systems, calculating angles for experiments, or transforming data between formats for analysis in different software.
- • Convert between metric and imperial units
- • Transform angle measurements for calculations
- • Convert temperature between Celsius, Fahrenheit, Kelvin
- • Export data between different formats
International Teams
Teams working across countries deal with different measurement systems, date formats, and time zones. Converting between DD/MM/YYYY and MM/DD/YYYY, or understanding when "5 PM EST" is in your local time, is crucial for coordination.
- • Convert date formats for international documents
- • Calculate timezone differences
- • Convert weights and measures for shipping
- • Standardize data formats across regions
Converter Categories
📏 Unit Conversions
Convert between measurement systems with precision. Our unit converter supports length (meters, feet, inches), weight (kilograms, pounds, ounces), temperature (Celsius, Fahrenheit, Kelvin), volume (liters, gallons), and more.
⏰ Time & Date Conversions
Work with timestamps, date formats, and time zones. Unix timestamps (seconds since January 1, 1970) are standard in programming but unreadable to humans. Convert between epoch time and readable dates, transform date formats (ISO 8601, RFC 2822, SQL), and calculate time durations.
🎨 Color Conversions
Colors can be represented in multiple formats. HEX codes are common in web development, RGB is standard in digital displays, HSL is intuitive for adjusting hue and saturation, and CMYK is required for print. Convert between all formats instantly.
Frequently Asked Questions
How accurate are the conversions?
Our converters use high-precision floating-point arithmetic. Unit conversions are exact to at least 10 decimal places. For most practical purposes, the accuracy exceeds what you'd need for real-world applications.
What is a Unix timestamp?
A Unix timestamp is the number of seconds (or milliseconds) since January 1, 1970, 00:00:00 UTC (the "Unix epoch"). It's the standard way computers represent time internally. For example, 1703505600 represents December 25, 2023, at noon UTC.
Why convert images to WebP?
WebP is a modern image format developed by Google that provides superior compression. WebP images are typically 25-35% smaller than equivalent JPEG/PNG images at the same visual quality. This means faster page loads and lower bandwidth costs.
Can I convert between metric and imperial?
Yes! Our unit converter supports both metric (SI) and imperial/US customary units. Convert meters to feet, kilograms to pounds, liters to gallons, and vice versa. We also support less common units like nautical miles, troy ounces, and stones.
Start Converting
Choose a converter and transform your data instantly. Free, accurate, and completely private.