Convert between Binary, Decimal, Hex, and ASCII
Convert between binary, decimal, hexadecimal, and octal number systems with our free Binary Converter. Whether you're a computer science student learning number bases, a programmer debugging low-level code, or working with digital electronics, this tool provides instant bidirectional conversions with step-by-step explanations.
Enter a number in any supported format (binary, decimal, hex, or octal).
Select the input number system from the dropdown.
View instant conversions to all other number systems.
Copy any result with one click.
Binary uses only 0 and 1. Each position represents a power of 2, starting from the right: 1, 2, 4, 8, 16, etc. For example, binary 1010 = 8+0+2+0 = decimal 10.
Computers use binary because their electronic circuits have two states: on (1) and off (0). This maps perfectly to the binary number system, making it the foundation of all digital computing.
Our converter supports very large numbers with up to 64-bit precision for integer values, and standard IEEE 754 precision for floating-point conversions.
Binary 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 Binary Converter.