Convert tools

CRC-16 Hash Calculator

CRC-16 Hash Calculator. Local browser processing.

Convert in your browser · No sign-up

CRC-16All encoding tools ↗

Choose the operation and confirm the input format.

ARC / MODBUS / CCITT-FALSE / XMODEM / X25

How to use

  1. Enter your data and parameters, or load the example.
  2. Choose the operation and confirm the input format.
  3. Run the tool, then copy or download the result.

Example

MODBUS(123456789) = 4b37

Details and limitations

Everything runs in your browser; text, files and keys are not uploaded.

Input is limited to 100,000 characters per field. Cancel stops the worker and discards the pending result.

Hashing is one-way. Encoding and obfuscation do not keep data secret.

FAQ

Are my keys or files uploaded?

No. Calculation happens locally in a Web Worker. Clearing or leaving the page discards its working state.

Format references

Tool page updated: