Free online SM3 hash calculation and verification tool. Supports SM3 hash calculation, HMAC-SM3 message authentication code generation, and hash verification. Complies with the State Cryptography Administration GB/T 32905-2016 standard, outputting 256-bit (64 characters) hexadecimal hash values. Suitable for domestic cryptography applications, e-government, financial security and other scenarios.
Free online SM3 hash calculation and verification tool. Supports SM3 hash calculation, HMAC-SM3 message authentication code generation, and hash verification. Complies with the State Cryptography Administration GB/T 32905-2016 standard, outputting 256-bit (64 characters) hexadecimal hash values. Suitable for domestic cryptography applications, e-government, financial security and other scenarios.
Free online SM3 hash calculation and verification tool. Supports SM3 hash calculation, HMAC-SM3 message authentication code generation, and hash verification. Complies with the State Cryptography Administration GB/T 32905-2016 standard, outputting 256-bit (64 characters) hexadecimal hash values. Suitable for domestic cryptography applications, e-government, financial security and other scenarios.
Open the tool page — no installation needed Enter the text to hash, choose an output format (Hex/Base64), and enable Salt or HMAC mode as needed Click "Compute SM3 Hash" to get the result and copy it with one click; you can also verify an existing hash against its original text below
This tool is completely free and requires no sign-up Everything runs locally in your browser — your data never leaves your device
Yes, SM3 Hash Calculator is completely free. No download or installation required — it runs right in your browser.