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Hash & Crypto
Generate MD5 and SHA-256 hashes for checksums and integrity verification.
About Hash & Crypto
Hash functions are fundamental to software development — file integrity checks, password storage, digital signatures, content addressing, and deduplication all depend on them. MD5 and SHA-256 are the most commonly used algorithms, each with different trade-offs between speed, security, and collision resistance.
Our hash tools let you generate MD5 and SHA-256 digests from any text input directly in your browser. The output is a hexadecimal string that uniquely represents your input. Since hashing is a one-way operation, there is no "decode" — you can only verify by hashing the same input again and comparing the results.
FAQ
What is the difference between MD5 and SHA-256?
MD5 produces a 128-bit (32-character hex) hash and is fast but no longer considered collision-resistant. SHA-256 produces a 256-bit (64-character hex) hash and is part of the SHA-2 family — it is much more secure and recommended for any security-sensitive use case.
Can I reverse a hash to get the original text?
No. Cryptographic hash functions are one-way by design. You cannot recover the original input from a hash. The only way to "crack" a hash is by brute-force guessing (trying many inputs until one matches), which is computationally expensive for strong algorithms like SHA-256.
Is MD5 still safe to use?
MD5 is fine for non-security purposes like checksums and cache keys. However, it should never be used for password hashing or digital signatures, as practical collision attacks exist. Use SHA-256 or bcrypt for security.