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Overview

Number Base Converter is a convert tool that Number base converter: convert between binary, octal, decimal and hex with live four-base view for programming, with one-click copy, offline and history. It runs 100% in your browser with no upload, so you get instant results with privacy. Whether you need a quick answer or batch processing with precise control, you can enter, validate and export in seconds. The UI is responsive on mobile, tablet and desktop and supports one-click copy.

Use cases

• Cooking and fitness unit swaps
• Study and exam unit unification
• Cross-border weight/volume conversion
• Imperial/metric for engineering
• Use it to cross-check “进制转换、二进制” in reports, docs or APIs to avoid manual conversion errors

How to use

1. 1 Pick source and target units
2. 2 Enter value for instant conversion
3. 3 Swap direction or batch paste
4. 4 Copy result with units

Highlights

• Local & private: processing stays in your browser
• Live validation with tolerant parsing
• One-click copy and export for docs, code or sheets
• Batch and offline support under poor network

Notes

• Keep 3-4 decimals for high precision
• Temperature needs offset handling
• Some units have US vs UK variants

FAQ