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Base Converter

Base converter for binary, octal, decimal, and hexadecimal numbers with automatic 0b/0o/0x prefix detection, instant linked updates, and bitwise debugging workflows.

Binary

Octal

Decimal

Hexadecimal
Base Converter

Quick Start

1
Input field: type your number into the matching base
2
Enter number: type plain digits, or paste a prefixed value into the matching field (0b/0o/0x)
3
Instant results: the other fields update automatically and can be copied

Common Scenarios

Programming & debugging

quickly convert constants, bit masks, and flags

Permission bits

relate Unix permissions (octal 755) to binary/decimal

Networking & protocols

inspect/verify hexadecimal fields in frames

Bitwise learning

observe how shifts and AND/OR/NOT affect representations

Registers/bitfields

decompose and compose flag bits (e.g., 0xA5 → switches), handy for embedded and protocol debugging

Conversion Parameters & Range

Supported bases: binary, octal, decimal, hexadecimal
Digits: binary 0/1; octal 0–7; decimal 0–9; hex 0–9/A–F (case-insensitive)
Prefix tolerance: only the matching field accepts 0b/0o/0x; output is plain value
Separators: spaces/underscores/grouping are not supported
Leading zeros: outputs remove non-essential leading zeros

Usage Advice

Validate input: ensure the chosen base matches allowed digits; avoid illegal characters
Team convention: decide whether to keep prefixes in results to avoid ambiguity
Hex letter case: value is case-insensitive; for code, agree on a unified style (e.g., uppercase).
Readability with large numbers: for manual checks, segment before pasting (input accepts contiguous digits only)
Signedness: results are treated as unsigned; consider two’s‑complement/sign bits as needed

Limitations & Compatibility

No separators; only the matching field accepts 0b/0o/0x. Conversion and copy output plain values
Negative numbers and fractions are not supported
Very long inputs may reduce performance; consider splitting

Privacy & Security

All processing happens locally in your browser. You can replace, clear, and re-run the current content at any time.

FAQ

5

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