Online SM3 File Hash Checksum Calculator

Update time: 06/09/2025 10:33 AM

Tool Introduction:

The Online SM3 File Hash Checksum Calculator is a tool based on the SM3 cryptographic hash algorithm for calculating file SM3 values. A major advantage of this online SM3 file tool is support for large files up to 2GB, with hash value output in both hexadecimal and Base64 formats. Click the area below to browse and select a file for SM3 verification or drag a file to the area below, then click the "Calculate SM3" button to get the checksum and hash value of the file.

Select a file for SM3 hash calculation

Drag your file here or click to select file...

SM3 Calculation Result：

File name：

File type：

Hash value：