Hash Generator

Use this tool to hash (also called digest) any string using multiple cryptographic hash algorithms.

Private and Secure: Fully client-side — nothing leaves your browser !

What is Hashing?

Hashing is a process of transforming any input data (text, files, etc.) into a fixed-length string of characters, which appears random.
This output is called a hash or digest.

A hash function has key properties:

Deterministic: The same input always produces the same output.
Fast to compute: Hashing large data is efficient.
Irreversible: It is practically impossible to reverse-engineer the original input from its hash.
Collision-resistant: It is extremely unlikely that two different inputs will produce the same hash.

Hashing is a foundational building block in security systems and software engineering. It is used in:

Password storage
Digital signatures
Data integrity checks
TLS/SSL handshakes
File verification (checksums)

Text to Hash

Output Encoding: Base64 Hex

Hash Results

Algorithm	Bits	Hash

MD5 and SHA-1 are insecure for cryptographic use. Use SHA-256, SHA-384, or SHA-512 whenever possible.

Quick-take overview

Legacy / broken: MD5 and SHA-1 are no longer collision-resistant—avoid except for non-security fingerprints.
Current workhorses: SHA-2 (SHA-256/384/512) remains the FIPS-approved default and has no known practical weaknesses.
Future-proof picks: SHA-3 (sponge construction) and BLAKE3 (tree construction) both resist length-extension, run in constant time, and scale well on modern CPUs.
When you need speed: BLAKE3 ≫ BLAKE2 ≳ SHA-2 > SHA-3 in raw throughput on mainstream hardware.
Keyed or variable-length output: Use HMAC-SHA-256 for classic MACs, or the XOF modes SHAKE / BLAKE3 when you need arbitrary-length digests.

Comparison table

Algorithm	Year (std.)	Digest size(s)	Construction / Family	Security status (2025)	Typical strengths / uses
`MD5`	1992 (RFC 1321)	128 bit	Merkle–Damgård (MD)	Broken – practical collisions	Legacy file checksums only
`SHA-1`	1995 (FIPS 180-1)	160 bit	Merkle–Damgård (SHA-0 tweak)	Broken – chosen-prefix collisions	Legacy Git objects & old certs (discouraged)
`SHA-224 / 256`	2002 (FIPS 180-4)	224 / 256 bit	SHA-2 (32-bit core)	Strong – no attacks < 2¹¹² / 2¹²⁸	TLS, code signing, JWTs, blockchains
`SHA-384 / 512`	2002 (FIPS 180-4)	384 / 512 bit	SHA-2 (64-bit core)	Strong – cost ≥ 2¹⁹² / 2²⁵⁶	Large-file checksums, digital signatures
`SHA-512/256`	2008 (FIPS 180-4)	256 bit	SHA-2 (64-bit core)	Strong – faster on 64-bit CPUs	Drop-in upgrade for SHA-256 on servers
`SHA3-256 / 512`	2015 (FIPS 202)	256 / 512 bit	Keccak sponge	Strong – different design, side-channel hardened	Post-quantum research, FIPS alternative
`SHAKE128 / 256`	2015 (FIPS 202)	XOF (any)	Keccak sponge (XOF)	Strong – variable-length output	KDFs, domain separation, PQ crypto schemes
`BLAKE2s / BLAKE2b`	2013 (RFC 7693)	256 / 512 bit	ChaCha-like / HAIFA	Strong – well-studied	Argon2, libsodium, fast file integrity checks
`BLAKE3`	2020 (IETF draft)	XOF (default 256 bit)	Merkle tree, SIMD	Strong – wide margin, fastest	Ultra-fast checksums, embedded & mobile devices
`RIPEMD-160`	1996 (ISO 10118-3)	160 bit	MD-style	Safe but aging	Bitcoin addresses, P2P legacy systems
`Whirlpool`	2000 (ISO 10118-3)	512 bit	Wide-block (AES-like)	Safe – niche adoption	European standards compliance

Legend: “Strong” = no practical pre-image or collision attacks known.
XOF = extendable-output function (digest can be any length).

Recommended defaults

Scenario	Good choice	Why
FIPS-required environments	SHA-256 or SHA-512	Broadest library / hardware support
General-purpose apps (no FIPS)	BLAKE3	Fastest, keyed & XOF modes built-in
Long-term / post-quantum cautious	SHA3-256 or SHAKE256	New design, higher analysis margin
Message authentication	HMAC-SHA-256 (classic) or KMAC128 (SHA-3)	Proven security proofs
Password hashing / KDF	Argon2id (BLAKE2 core)	Memory-hard, GPU-resistant