Tool capabilities
- Input
- Binary · TXT
- Output
- JSON
How to use Checksum Calculator
Calculate a checksum of UTF-8 text or local files, choose the algorithm and verify an expected hexadecimal value.
- Choose local files or enter exact UTF-8 text. Select the checksum algorithm.
- Optionally enter an expected hexadecimal checksum for one input, then run the calculation.
- Compare the result, copy a digest or download the JSON report.
Checksum Calculator · Example
Input
UTF-8 text or a file containing exactly: abc
Output
SHA-256: ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad
No trailing newline. A different byte sequence produces a different checksum.
Usage notes
Inputs and results are processed on this device. Tool content is not sent to a processing server.
Text uses its exact UTF-8 bytes, including spaces and line breaks. Files are hashed without modification. Inputs and reports are not saved automatically.