Hash Generator
Create a cryptographic hash of your text.
How to use Hash Generator
Generate SHA-1, SHA-256, SHA-384 or SHA-512 hashes of any text using the browser crypto API. No server.
Open Hash Generator on toolpermarket and enter your values in the fields below.
In the Input field, type or paste the text to fingerprint. Pick the algorithm from the list — SHA-256 is the common default.
In the Algorithm field, choose MD5, SHA-1, SHA-256, SHA-384 or SHA-512. Use SHA-256 or above for anything security-related; avoid MD5 and SHA-1.
Press Hash to compute the result. The output appears immediately below the form. You can change any input and run it again to compare results.
Read the result and use it as needed. If the number looks off, re-check your inputs and run it again — the math is deterministic, so the same entries always return the same answer.
Worked example. Hashing the word test with SHA-256 returns 9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a8.
Tips for accurate results.
Never use a hash as encryption — it cannot be reversed.
Add a salt server-side before storing password hashes.
Compare hashes, not originals, when checking integrity.
When to use Hash Generator. Verifying a downloaded file has not been tampered with. Generating a stable content fingerprint for caching. Teaching the difference between hashing and encryption.
When you actually reach for this
- You need a checksum (MD5/SHA) to verify a downloaded file was not corrupted in transit.
- You are hashing a value for deduplication or a quick integrity tag, not for password storage.
Where this tool stops being accurate
- Hashes are one-way: you cannot recover the input, and identical inputs always produce the same hash (no salt).
- MD5 and SHA-1 are broken for security; never use them to protect secrets — use SHA-256 or better, and salt passwords separately.
Frequently asked questions
Is a hash the same as encryption?
No. A cryptographic hash is one-way: it shrinks input to a fixed fingerprint that cannot be reversed to recover the original. Encryption is two-way and reversible with a key. Hashes are for integrity checks and password storage, never for confidentially hiding readable data.
Which algorithm should I pick?
For integrity and fingerprints use SHA-256 or stronger; SHA-384 and SHA-512 are fine for high-security needs. Avoid MD5 and SHA-1 for anything security-sensitive because they are broken against collision attacks, though they remain handy for quick non-adversarial checksums where collision resistance does not matter.
Why does the same word always give the same hash?
A hash function is deterministic: identical input always produces identical output. That property is what lets you verify a file by comparing hashes — if even one byte changed, the fingerprint changes completely, a property called the avalanche effect. The flip side is that identical inputs are detectable, which is why password storage also needs a unique salt.
Which algorithm should I use to verify a download?
SHA-256 is the safe default for integrity checks. Compare the published hash to yours; a mismatch means corruption or tampering.
Can I use this to store user passwords?
No — a plain hash is fast and unsalted, so it is trivially cracked. Use a slow, salted password hash (bcrypt, scrypt, argon2) instead.