Trình nhận diện loại hash

(Tài liệu bằng tiếng Anh)

What it does

The

HashHashA one-way function that maps data of any size to a fixed-length digest. Same input, same digest; any change, different digest; not reversible.

Type Identifier inspects a hash string’s length and character set to rank the algorithms that could have produced it - MD5, SHA-1/2/3, BLAKE, CRC32, NTLM, bcrypt, Argon2, and more. Several algorithms share output lengths, so the tool lists every plausible candidate in a ranked list instead of guessing one. 100% client-side.

How to use it

1. Paste a

   hashhashA one-way function that maps data of any size to a fixed-length digest. Same input, same digest; any change, different digest; not reversible.

   into

   HashHashA one-way function that maps data of any size to a fixed-length digest. Same input, same digest; any change, different digest; not reversible.

   (or tap a Try: chip - each chip is a real digest of the string cosmolabs).
2. Read the Length, Charset, and Bit length stats, then the ranked Likely algorithms list. The #1 row is the most common algorithm for that shape.
3. Copy report copies the ranked list as plain text, and the

   hashhashA one-way function that maps data of any size to a fixed-length digest. Same input, same digest; any change, different digest; not reversible.

   is encoded in the URL (?h=…) so you can share or bookmark the exact identification.

Recognized formats

Shape	Length / prefix	Candidates returned
Hex	8 chars (32-bit)	CRC32, Adler-32
Hex	16 chars (64-bit)	MySQL 3.x, CRC64
Hex	32 chars (128-bit)	MD5, MD4, NTLM, LM, MD2, RIPEMD-128, HAVAL-128
Hex	40 chars (160-bit)	SHA-1, RIPEMD-160, HAVAL-160, MySQL 5.x (SHA1(SHA1)), Tiger-160
Hex	56 chars (224-bit)	SHA-224, SHA3-224, BLAKE2s-224, HAVAL-224
Hex	64 chars (256-bit)	SHA-256, SHA3-256, BLAKE2s-256, RIPEMD-256, Skein-256
Hex	96 chars (384-bit)	SHA-384, SHA3-384, BLAKE2b-384
Hex	128 chars (512-bit)	SHA-512, SHA3-512, BLAKE2b-512, Whirlpool, Skein-512
Base64Base64An encoding representing binary data as 64 safe ASCII characters, so it survives transport through text-only channels. It encodes — it does not encrypt.	24 / 28 / 44 / 88 chars	MD5, SHA-1, SHA-256, SHA-512 ( base64base64An encoding representing binary data as 64 safe ASCII characters, so it survives transport through text-only channels. It encodes — it does not encrypt. )
Prefix	$2a$, $2b$, $2x$, $2y$	bcrypt
Prefix	$argon2id$, $argon2i$, $argon2d$	Argon2

Any other shape (wrong length, mixed characters) shows a neutral “no known

hashhashA one-way function that maps data of any size to a fixed-length digest. Same input, same digest; any change, different digest; not reversible.

format matches” note.

Examples

All digests below are real outputs for the string cosmolabs, verified with Node’s crypto:

MD5 - 32 hex chars

60b4749f2e2b300800ee2b5548172316 → MD5, MD4, NTLM, LM, MD2, RIPEMD-128, HAVAL-128 (all 128-bit).

SHA-256 - 64 hex chars

88576c6aa610e5867476f52922d1a138860e8eacc2bbe18a16dc124da7b77139 → SHA-256, SHA3-256, BLAKE2s-256, RIPEMD-256, Skein-256 (all 256-bit).

SHA-1 - 40 hex chars

006ce81575e12e1be321224f6ce62e758b6bd4bf → SHA-1, RIPEMD-160, HAVAL-160, MySQL 5.x (SHA1(SHA1)), Tiger-160.

CRC32 - 8 hex chars

5e86ed79 → CRC32, Adler-32.

SHA-256,

base64base64An encoding representing binary data as 64 safe ASCII characters, so it survives transport through text-only channels. It encodes — it does not encrypt.

-encoded - 44 chars

iFdsaqYQ5YZ0dvUpItGhOIYOjqzCu+GKFtwSTae3cTk= → SHA-256 (

base64base64An encoding representing binary data as 64 safe ASCII characters, so it survives transport through text-only channels. It encodes — it does not encrypt.

).

bcrypt and Argon2 - recognized by prefix

$2a$10$… → bcrypt. $argon2id$v=19$m=…,t=…,p=…$salt$hash → Argon2.

Good to know

• Heuristic only: length and charset are clues, not proof. Every 64-hex digest could be SHA-256 or SHA3-256 - only re-

  hashinghashingA one-way function that maps data of any size to a fixed-length digest. Same input, same digest; any change, different digest; not reversible.

  a known input can tell them apart.
• bcrypt and Argon2 carry their own format ($2…$, $argon2…$), so they are matched by prefix rather than length.
• Private: nothing leaves your browser.
• Related tools:

  HashHashA one-way function that maps data of any size to a fixed-length digest. Same input, same digest; any change, different digest; not reversible.

  Generator (compute digests),

  JWTJWTA compact, URL-safe token that carries claims (like identity or expiry) between two parties, signed to prevent tampering.Learn more

  Debugger (decode tokens that carry them), Hex ↔ Text Converter.