How it works
CRC-32/ISO-HDLC: reflected polynomial 0xEDB88320, initial value 0xFFFFFFFF, final XOR 0xFFFFFFFF.
Input definitions
- Text to checksum
- Plain text; maximum 200,000 characters.
A worked example
- Text to checksum
- 123456789
Assumptions & limits
UTF-8 text bytes; no normalization or trailing newline is added. Intended for accidental-corruption checking, not authentication or collision resistance.
Sources & review
Maintained by AnsRio. Methods and examples use automated checks; this does not imply independent professional certification.
Method updated 2026-10-17. Content checked against the stated method and examples. Our verification approach.
Common questions
Does this tool execute the code or data I paste?
Inputs are treated as data under the stated parser or transformation. Output is displayed as text. Parsing or formatting does not establish that the content is safe to execute elsewhere.
How does the CRC-32 text checksum tool work?
CRC-32/ISO-HDLC: reflected polynomial 0xEDB88320, initial value 0xFFFFFFFF, final XOR 0xFFFFFFFF.
What are the assumptions and limits of CRC-32 text checksum?
UTF-8 text bytes; no normalization or trailing newline is added. Intended for accidental-corruption checking, not authentication or collision resistance.