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Convert between Decimal, Binary, Hex, and Octal instantly.
Quick Tip
Type in any field to see real-time conversions across all bases.
Dev Base Converter performs instant conversions between Decimal, Binary, Hex, and Octal number systems.
The essential tool for developers and CS students. Perform real-time conversions between all major number bases in a clean, professional interface.
Type your number into any of the base fields.
Watch as the other bases update instantly.
Click the copy icon to grab any value for your code.
Dev Base Converter runs entirely in your browser: it takes your input, processes it on your device, and returns the result instantly — nothing is uploaded to a server. Convert between Decimal, Binary, Hex, and Octal instantly.
Yes, it handles standard integer conversions reliably.
We show common prefixes like 0x and 0b for clarity, but they are excluded from the copy value.