◇Free
CRC-32 checksum
Compute CRC-32/ISO-HDLC for UTF-8 text; not a security hash.
Compute CRC-32/ISO-HDLC for UTF-8 text; not a security hash. Compute an eight-digit hexadecimal checksum using the reflected ISO-HDLC CRC-32 polynomial. UTF-8 encoding is applied before the byte-by-byte calculation.
How to use
- Enter your text, values, or image.
- Adjust the options and run the tool.
- Copy or download your result.
Worked example
Example input
Input: 123456789
Example result
cbf43926
Limitations and details
CRC-32 is not collision-resistant and must not be used as a security hash, signature or message authentication code.
Inputs and options
- Input
- Text
Frequently asked questions
Is this tool free and private?
Yes. All 300 tools are free in this phase. Processing happens in your browser; your input and files are not sent to our servers.