Developer Number Tools
& Base Converters
Free online tools for programmers. Convert between number bases, perform bitwise operations, generate UUIDs, and more. All processing happens in your browser.
Quick Convert
Input base:
Base Converters
Convert between decimal, hex, binary, and octal
Bitwise Operations
AND, OR, XOR, shifts, and bit manipulation
Developer Utilities
UUID, hashes, bytes, IP addresses, and more
Text & Reference
ASCII, Unicode, and character references
Math Tools
Ratios, percentages, and number systems
Built for Developers
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Instant Results
Live conversion as you type. No waiting, no submit buttons.
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100% Client-Side
All processing in your browser. Your data never leaves your device.
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One-Click Copy
Copy any result instantly. Formatted exactly how you need it.
Part of our developer tools network. Also check out hextorgb.io for color conversions.