Ones' complement (8-bit)
Bitwise NOT masked to one byte—classic IP header checksum step.
ClientNearby workflows on Toolcore
- Two's complement (8-bit) — Interpret 0–255 as signed 8-bit two's complement. when the payload needs a different encoding or escape format.
- Reverse bits (8-bit) — Reverse bit order of an 8-bit value—low-level bit trick. when the payload needs a different encoding or escape format.
- Population count (bits) — Count set bits in a non-negative integer—Hamming weight. when the payload needs a different encoding or escape format.
- CRC-8 checksum — CRC-8 with polynomial 0x07 on UTF-8 bytes—local digest byte. when the payload needs a different encoding or escape format.
Common use cases
- Ones' complement (8-bit) for quick local checks without uploading data.
- Copy results into tickets, docs, or classroom notes.
Common mistakes to avoid
Unexpected input shape
See the intro and how-to notes for accepted formats.
FAQ
Is processing local?
Yes—this runs entirely in your browser.
Agent prefill?
Use q or qb for the main text field when supported.
More tools
Related utilities you can open in another tab—mostly client-side.
Two's complement (8-bit)
ClientInterpret 0–255 as signed 8-bit two's complement.
Reverse bits (8-bit)
ClientReverse bit order of an 8-bit value—low-level bit trick.
Population count (bits)
ClientCount set bits in a non-negative integer—Hamming weight.
CRC-8 checksum
ClientCRC-8 with polynomial 0x07 on UTF-8 bytes—local digest byte.