Hash Generator
Generate MD5, SHA-1, SHA-256 and SHA-512 hashes for any text in seconds. Paste a word, password or sentence, pick an algorithm, and this free hash generator returns a fixed-length fingerprint — computed privately in your browser with nothing uploaded.
What is a hash generator?
A hash generator takes any text and turns it into a fixed-length string, called a digest or hash, using a cryptographic algorithm. The most common have their own strengths: MD5 and SHA-1 are fast and widely supported but no longer considered secure, while SHA-256 and SHA-512 are the modern standards used for passwords, code signing, checksums and blockchain. No matter how long the input, the output is always the same size — 32 characters for MD5, 64 for SHA-256 and 128 for SHA-512.
Hashing is one-directional: you can't reverse a hash back to the original text, yet the same input always produces the same output. That property makes hashes ideal for verifying integrity — a file that hash-matches another is identical — and for storing passwords without keeping the plaintext. Even a one-character change produces a completely different hash, so hashes catch any tampering.
This generator runs entirely in your browser, so your text never leaves your device.
How to use the hash generator
- Type or paste your text into the input box.
- Choose the algorithm you want — MD5, SHA-1, SHA-256 or SHA-512.
- The hash appears instantly; click Copy to use it.
Example
Enter the text "password123" and select SHA-256 to get ef92b778bafe771e 442c... (the full 64-character digest). Switch to MD5 and the same input gives 482c811da5d5b4bc6d497ffa98491e38 — a completely different, shorter fingerprint.
Common use cases
- Checking the integrity of a downloaded file against a published checksum.
- Storing passwords as one-way hashes instead of plaintext.
- Generating unique file or record keys in databases and caches.
- Identifying duplicate content by comparing identical hashes.
Pro tips
- Use SHA-256 or SHA-512 for anything security-related; MD5 and SHA-1 are only for checksums.
- Adding a random 'salt' to a password before hashing stops dictionary and rainbow-table attacks.
- Compare hashes of the same input twice — a change in even one character gives a totally different hash.
- Never store a real password or secret in a field you paste into a shared tool.
FAQ
Which hash algorithms are supported?
MD5, SHA-1, SHA-256 and SHA-512 are supported, and all are computed locally in your browser.
Is the hash generator private?
Yes. The hash is computed on your device and nothing you type is uploaded or stored.
What is a hash used for?
Hashes are used for verifying file integrity, storing passwords, deduplicating data and creating fixed-length identifiers from any text.
Is MD5 secure?
No. MD5 is cryptographically broken and collision-prone, so it should only be used for checksums, not security.
What is the difference between SHA-256 and SHA-512?
Both are secure; SHA-256 gives a 256-bit (64 character) hash and SHA-512 a 512-bit (128 character) hash. On 64-bit systems SHA-512 is often slightly faster.
Can a hash be reversed?
No. A hash is one-directional, so there is no way to recover the original text from the digest.
Why does the same input give the same hash?
Hashing is deterministic — the algorithm always produces the same output for the same input, which is what makes it useful for comparison.
Is a hash unique?
Practically yes, though it is theoretically possible for two different inputs to collide. Stronger algorithms make collisions far less likely.
What is salting?
Adding a random string to input before hashing, so identical passwords produce different hashes and attacks are harder.
Related searches
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