Number Base Converter
Convert a number between 6 bases — binary (base 2), octal (base 8), decimal (base 10), hexadecimal (base 16), base32, base36. Input in any base, see all conversions at once.
11111111377255ff7v73What powers the Number Base Converter
6 bases: 2, 8, 10, 16, 32, 36
Input any base; all 6 outputs shown simultaneously
Per-base copy
Live conversion as you type
Error reporting for invalid digits per base
Why the Number Base Converter is different
Browser-native
The Number Base Converter runs entirely in your browser. Input is processed locally — never uploaded, never logged, never cached anywhere outside your device.
No artificial limits
No daily quotas, no character ceilings, no "upgrade for more" walls. Every feature is the complete feature — the same on the first use as the thousandth.
Production-grade quality
Built to the same engineering bar as paid SaaS tools — accurate algorithms, audited logic, responsive design and accessibility-tested interactions.
Common use contexts
- Low-level programming (binary ↔ hex)
- Web colors (hex)
- Short IDs / URL slugs (base36)
- Math homework
Private and secure
Zero upload
All processing happens in your browser. Input is never transmitted, logged or cached.
Works offline
Once the page loads, the tool runs without an internet connection. No network calls happen during use.
No tracking
No accounts, no cookies for tool state. Only aggregate analytics count visits at the page level.