Number Base Converter
Decimal, binary, octal and hex side by side, live as you type.
Type into any base, the others update. BigInt under the hood so the high bits don't round.
Bit view (high → low)
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BigInt-safe. Strip a leading
0x/0b/0o automatically.Runs entirely in your browser — nothing you enter is sent to a server.
Need this for real, on your stack?
These free tools are a taste of how we think. We’re a senior software team across Romania & Pakistan that ships deep technical work — platforms, infra, data and the gnarly bits in between.
Talk to our engineers →Bitwise
We also render the binary bitmap and show common interpretations (signed/unsigned, ASCII, RGB byte triplets) so masking and packing checks are quick.
Built by senior engineers at WeWorkWorldwide. We’re hiring across Romania & Pakistan — see open roles →. Or see how our team embeds with yours.