Hash Identifier
Identify hash type
Frequently Asked Questions
How does the Hash Identifier detect hash types?
It analyzes the hash string's length, character set, and format. MD5 is always 32 hex characters, SHA-1 is 40, SHA-256 is 64, SHA-512 is 128. Bcrypt starts with $2b$, and Argon2 starts with $argon2. The tool identifies 20+ hash types.
What hash types can be identified?
MD5, SHA-1, SHA-256, SHA-384, SHA-512, bcrypt, Argon2, NTLM, MySQL, CRC32, RIPEMD-160, Whirlpool, and more. The tool shows the most likely type and alternative possibilities when multiple formats match the same pattern.
Can the tool crack or reverse a hash?
No. Cryptographic hashes are one-way functions — they cannot be reversed. The tool only identifies the hash type. For password recovery, you would need specialized tools that try many inputs (brute force or dictionary attacks).
Why do some hashes have the same length?
Different algorithms can produce the same length output. Both MD5 and NTLM produce 32-character hex strings. The identifier uses additional clues (character patterns, prefixes) to distinguish between them and ranks possibilities by likelihood.
What is the most secure hash algorithm?
For passwords: Argon2id (winner of the Password Hashing Competition), bcrypt, or scrypt. For data integrity: SHA-256 or SHA-3. MD5 and SHA-1 are considered broken for security purposes but still used for checksums.