Number Base Converter
Convert integers between binary, octal, decimal, hex, and any base from 2–36. Edit any field and the others update live. BigInt-safe for large values.
Edit any field: spaces, underscores, and 0b/0o/0x prefixes are accepted.
8 bits · 1 byte(s) for the absolute value
How it works
Enter a value in any base
Type in binary, octal, decimal, hex, or a custom base (2–36). Changing one field recalculates the others instantly.
Optional formatting
Enable prefixes (0b, 0o, 0x) or digit grouping for readability. Input still accepts spaces, underscores, and prefixes.
Copy or download
Copy any single field, or download all bases as a text file. Bit and byte size appear under the fields.
What is a number base converter?
A number base (radix) converter rewrites the same integer using different digit alphabets: binary (0–1), octal (0–7), decimal (0–9), hexadecimal (0–9A–F), or any base up to 36. This page keeps all fields in sync in your browser; Easy24 does not receive your values.
Why use this tool
- Binary, octal, decimal, and hex
- Custom radix from 2 to 36
- Live sync across every field
- BigInt support for large integers
- Optional prefixes and digit grouping
- Unlimited use with no daily cap
Questions
What does Number Base Converter do?
It converts whole numbers between common radices (2, 8, 10, 16) and any base from 2 through 36.
Why BigInt?
JavaScript Number loses precision above 2^53−1. This tool uses BigInt so large hex or binary values stay exact.
Can I paste 0xFF or 0b1010?
Yes. Prefixes are stripped automatically when parsing binary, octal, and hex.
What is digit grouping?
It inserts spaces (or commas for decimal) so long values are easier to read. Copy uses the plain or prefixed form without requiring grouped input.
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When to use Number Base Converter
Number Base Converter is one of those utilities you open for a few minutes, finish the task, and close without leaving a trail of uploads. Convert integers between binary, octal, decimal, hex, and any base from 2–36. These pages are built for everyday strings and small payloads, not for shipping secrets through a public cloud converter. Because Number Base Converter is bilingual on Easy24, the same workflow works in English or Turkish without changing how the tool behaves. Browser-first processing is the privacy default here: there is no Easy24 document inbox waiting to expire after a timeout for this workflow. This page has no daily free-plan cap, so you can run it as often as you need. When you are done, download or copy what you need, then close the tab. Related tools on the page cover common follow-up steps such as the reverse conversion or a neighboring format.
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