Does it support hexadecimal prefixes like '0x'?
Yes, prefixes like 0x (hex), 0b (binary), and 0o (octal) are accepted and stripped cleanly during calculation.
Converters
Convert between decimal, hex, octal and binary.
Add an input and run this tool to see the output.
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Number Base Converter Developer Guide
100% Client-Side & PrivateTranslate a number between common bases while working with bitmasks, colors, permissions, encodings, and low-level data.
Key capabilities
- Simultaneous bidirectional conversion between Decimal, Hexadecimal, Octal, and Binary
- Supports large integers and standard bit representations
- Live updating as you type into any base field
- Pure client-side calculation with zero network latency
Common use cases
- Debugging low-level bitmasks, flags, and memory addresses in systems programming
- Translating Unix file permissions between octal and binary representations
- Inspecting byte values and network packet headers
How to use Number Base Converter
- Type a value into any input field (Decimal, Hex, Octal, or Binary)
- Watch the other three fields update immediately with corresponding values
- Copy the required representation to your clipboard