Number Base Converter
Convert between binary, octal, decimal, and hexadecimal
Supports arbitrary-precision integers via BigInt. Underscores are stripped: 1_000_000 works.
So funktioniert's
- 1Type into any base
Enter a value in binary, octal, decimal, or hex - the others update instantly.
- 2Use underscores freely
1_000_000 or ff_ee_dd are stripped to the raw digits, matching Rust and modern JS syntax.
- 3Prefixes are optional
0b, 0o, and 0x prefixes are recognized but not required.
Über Number Base Converter
Free online number base converter. Type a number in binary, octal, decimal, or hex - see all four representations update live. Handles arbitrary-precision integers via BigInt. Runs entirely in your browser. Number Base Converter auf 712 Tools läuft komplett in deinem Browser über native JavaScript APIs - kein Server sieht je deine Daten. Das heißt: sofortige Ergebnisse, volle Privatsphäre und keine Upload-Limits.
Ob für eine Debugging-Session, einen schnellen Sanity Check oder einen Produktions-Incident - dieses Tool ist kostenlos so oft nutzbar, wie du willst. Keine Wasserzeichen, kein Signup und keine Ads im Tool selbst.
Häufige Fragen
Is there a size limit?
No - BigInt supports arbitrary-precision integers. You can convert a 200-digit hex number just fine.
Does it support negative numbers?
Yes, in decimal. For negative hex/binary, encode with two's complement first - that's a different operation.
What about fractional numbers?
Not yet. This tool is for integers. Floats in binary/hex are a separate topic (IEEE 754).
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