Hexadecimal addition
ClientAdd two hexadecimal integers of any length—BigInt math in your browser.
0x100
Nearby workflows on Toolcore
- Binary addition — Add two binary strings and return sum as binary. when the payload needs a different encoding or escape format.
- Hex encode & decode — UTF-8 text to hex and hex to text—strip spaces, local only. when the payload needs a different encoding or escape format.
- Integer base converter — Whole numbers in radices 2–36: binary, octal, decimal, hex (optional 0x), custom bases; BigInt-sized strings, local only. when the payload needs a different encoding or escape format.
- XOR hex strings — XOR two equal-length hex strings byte-wise—local crypto helper. when the payload needs a different encoding or escape format.
About this tool
Add hex byte strings or addresses without converting to decimal—handy for memory map and checksum offsets.
Common use cases
- Offset a base address by a hex increment.
- Verify hand-done hex addition in digital logic class.
Common mistakes to avoid
Odd-length nibbles
Single hex digits are fine—leading zeros are optional.
FAQ
0x prefix?
Optional on input; output includes 0x.
Subtraction?
Not supported—use decimal or BigInt elsewhere.
More tools
Related utilities you can open in another tab—mostly client-side.
Binary addition
ClientAdd two binary strings and return sum as binary.
Hex encode & decode
ClientUTF-8 text to hex and hex to text—strip spaces, local only.
Integer base converter
ClientWhole numbers in radices 2–36: binary, octal, decimal, hex (optional 0x), custom bases; BigInt-sized strings, local only.
XOR hex strings
ClientXOR two equal-length hex strings byte-wise—local crypto helper.