Hash Identifier

Detect hash types from a hash string.

freeworks offlinenothing uploaded
Input
Output
—

About hash identifier

Hash Identifier runs in the page as you use it. There is no input to submit and no result to fetch, because the whole thing happens on this side of the wire.

Nothing here is stored between visits. Reload the page and you start from an empty box again.

You will find it under Hashes, alongside 15 other tools for the same sort of job.

Recognizes MD5, SHA-1, SHA-256, SHA-512, bcrypt, Argon2, CRC32, and more by length and format.

How to use it

01
Start it
Every control is on the tool itself. Keyboard shortcuts, where there are any, are listed beside it.
02
Watch it run
It updates in the page as you go. Nothing is sent anywhere, so it keeps working with the network off.
03
Close when done
Nothing is stored between visits. Reloading gives you a clean start rather than picking up where you left off.

Examples

Identify MD5 Hash
Detect the type of a hash string by its length and format
Input
d41d8cd98f00b204e9800998ecf8427e
Output
Input: d41d8cd98f00b204e9800998ecf8427e
Length: 32 characters

Possible hash types:
  - MD5 (128-bit hash)
  - NTLM (32-char hex (same as MD5))
Identify bcrypt Hash
Recognize a bcrypt password hash
Input
$2b$10$N9qo8uLOickgx2ZMRZoMyeIjZAgcfl7p92ldGxad68LJZdL17lhWy
Output
Input: $2b$10$N9qo8uLOickgx2ZMRZoMyeIjZAgcfl7p92ldGxad68LJZdL17lhWy
Length: 60 characters

Possible hash types:
  - bcrypt (bcrypt password hash)

Questions

Does Hash Identifier work offline?+

Yes. It is JavaScript running in this tab, so once the page has loaded it needs nothing further from the network. Put the machine in flight mode and it carries on. Nothing you do here is sent anywhere, because there is nowhere for it to go.

Does it remember anything between visits?+

No. Reload the page and it starts from nothing. There is no account, no saved state and no cookie holding your last session. That is a deliberate trade: it cannot lose your data because it never keeps any.

Is it accurate?+

Timing comes from performance.now(), the high resolution clock the browser provides, rather than from setInterval, which drifts by a few milliseconds every tick and compounds over minutes. What can still shift things is the browser throttling a tab in the background, so leave it visible if the timing matters.

Does it make a sound?+

Where a sound makes sense, it is generated with the Web Audio API rather than loaded as a file, so there is nothing to download and nothing to block. Browsers refuse to start audio until you have interacted with the page, which is why the first press is what switches it on.

Can I use Hash Identifier on a phone?+

Yes. The controls are sized for touch and the layout collapses to one column on a narrow screen. Bear in mind that a phone locking its screen will suspend the page, and timing stops with it.