Convert between hexadecimal, decimal, binary, and octal number systems with our free Hex Converter. Supports conversion of hex color codes, memory addresses, and large numbers. Essential for web developers working with CSS colors, programmers debugging memory dumps, and network engineers analyzing packet data.
Enter a hexadecimal value (e.g., FF, 1A2B, #FF5733).
Or enter a decimal, binary, or octal number to convert to hex.
View instant conversions to all number bases.
Copy results with one click.
Hexadecimal (hex) is a base-16 number system using digits 0-9 and letters A-F. Each hex digit represents 4 binary bits, making it a compact way to represent binary data. For example, hex FF = decimal 255 = binary 11111111.
Hex color codes (#RRGGBB) represent colors using three pairs of hex digits: Red (00-FF), Green (00-FF), Blue (00-FF). For example, #FF0000 is pure red, #00FF00 is green, #0000FF is blue, #FFFFFF is white.
The 0x prefix indicates a hexadecimal number in programming languages like C, Java, JavaScript, and Python. For example, 0xFF represents the decimal value 255.
Hex Converter is a high-performance online utility engineered for developers, designers, and digital professionals. Whether managing complex data transformations or routine file processing, having fast, client-side tools saves time and enhances productivity.
By taking advantage of modern browser V8 execution engines and Web APIs, PKTools delivers instant results without server queues, API limits, or mandatory user registration.
Portable Document Format (PDF) files store vector graphics, font descriptors, cross-reference tables (XRef), and binary streams inside an object hierarchy. When manipulating PDF documents in web applications, browser memory efficiency and DOM canvas rendering performance are paramount.
Client-side PDF utilities utilize WebAssembly (WASM) and HTML5 Canvas contexts to parse document streams without requiring server-side rendering engines. By utilizing linear memory allocations and asynchronous Web Workers, multi-page PDFs can be processed efficiently even on mobile hardware.
In enterprise software workflows, documents often contain confidential financial records, personally identifiable information (PII), or proprietary contracts. Transmitting sensitive documents to third-party conversion servers exposes organizations to severe data compliance risks under GDPR and HIPAA regulations.
Explore our comprehensive engineering guide and technical tutorial for Hex Converter.