MD5 Reverse Lookup

Features

• A common password list (the entries that top weak-password statistics)
• Numeric enumeration to 5 digits, lowercase enumeration to 4 letters
• Reports how many candidates were tried, so "found" and "not found" have a scale
• When nothing matches, says so plainly and explains that this is normal rather than a fault
• A wrong digest length is named directly (SHA-1 is 40 characters, SHA-256 is 64)
• Computed locally — no upload, no online database

How to use

1. Paste the 32-character hex digest (prefixes like `hash:` are tolerated)
2. Pick a search range — the default common list is instant
3. Press Ctrl/⌘ + Enter or click Run
4. You get an explanation whether or not it matched

FAQ

Why insist it is not decryption?

Because MD5 is one-way by design: it compresses input of any length into 128 bits, and that process is not reversible — no inverse function exists. Every "decryption" is guesswork: hash candidates and compare. So what comes out is merely some string with the same digest, and in principle countless others share it (though constructing one is impractical). This matters: if the digest is your own password, it means the password appeared in some leak and was weak to begin with. If it belongs to someone else, you are doing little more than guessing.

Why is my digest not found?

Almost always because the password is longer than the enumeration depth or mixes case and symbols — both outside this tool's range. One further case is worth knowing: if the hash is salted (`md5(password + salt)`), no dictionary or rainbow table will ever find it, because the salt changes the digest — which is precisely the point of salting. A salted hash can only be recomputed by someone who knows the salt.

How is this different from the "MD5 decrypt" websites?

Far less coverage, but the privacy runs the other way. Those sites sit on hundreds of gigabytes of rainbow tables and GPU clusters and will find far more — at the price of you having to send them the hash (sometimes for a fee). This tool runs locally only, uploading nothing and querying nothing, so its coverage stops at weak passwords. Which to choose depends on whether your hash is sensitive: for your own weak password either works; for anything tied to a real account, keeping it local is the safer call.