How do I generate a SHA-256 hash from text?

Paste your text into the tool above, select SHA-256, and run it. You get the 64-character lowercase hex digest instantly — free, no signup, computed in your browser.

How do I create an MD5 hash online?

Enter your text, choose MD5 from the Algorithm dropdown, and run the tool. MD5 is fine for checksums and deduplication, but it is collision-broken — never use it for passwords or security.

Can I generate a SHA-512 hash online?

Yes — select SHA-512 in the dropdown. You get a 128-character hex digest, the strongest option here, computed locally with the audited noble-hashes engine.

What is a hash calculator used for?

Hash calculators turn any text into a fixed-length fingerprint: verifying file integrity (checksums), building cache keys, Gravatar-style avatar identifiers, and comparing content without revealing it.

How do I convert a string to a hash?

A hash function maps any string to a fixed-length digest deterministically — the same input always yields the same output, and the process cannot be reversed. Paste the string above, pick an algorithm, and run the tool.

Which hash algorithm should I choose: SHA-256, SHA-512, SHA-1 or MD5?

SHA-256 for general use, SHA-512 when you want the strongest digest. SHA-1 and MD5 are collision-broken — keep them for checksums and legacy systems only, never for passwords, tokens, or anything security-sensitive.

Hash Generator: SHA-256, SHA-512, SHA-1 & MD5 Online

What is Hash generator?

Hash Generator — Generate SHA-256, SHA-512, SHA-1 or MD5 hashes from any text with this free hash generator. Audited engine, lowercase hex output, fully client-side.

Hashes are computed by noble-hashes (vendored open-source cryptography library, MIT), an independently audited pure-JavaScript implementation. Input text is UTF-8 encoded before hashing and the digest is rendered as lowercase hexadecimal. Everything runs in your browser — your text is never uploaded. MD5 and SHA-1 are included for checksums and legacy compatibility only: both are collision-broken and must not be used for security purposes.

Why use this hash generator?

🎯

Built for hash generator

Generate SHA-256, SHA-512, SHA-1 or MD5 hashes from any text with this free hash generator. Audited engine, lowercase hex output, fully client-side.

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Transparent & honest

Input is UTF-8 encoded before hashing; the same text always produces the same hash, on any device.

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Private by design

Everything runs in your browser. Your inputs never leave your device.

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Works everywhere

Fully responsive — perfect on desktop, tablet, and mobile. No app needed.

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Regularly updated

Regularly maintained and reviewed to ensure accuracy.

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Free forever

No accounts, no limits, no watermarks. Use Hash Generator as much as you need.

How to use Hash Generator

1Type or paste your text into the "Text to hash" box.
2Choose an algorithm from the "Algorithm" dropdown — SHA-256 is the safe default.
3Run the tool to get the hash as lowercase hexadecimal.
4Copy the hash for checksums, cache keys, Gravatar-style identifiers, or integrity checks.
5Need a different algorithm later? Change the dropdown and run again — the same input always produces the same hash.

What can you do with Hash Generator?

Generate sha-256 hash from text — Generate SHA-256, SHA-512, SHA-1 or MD5 hashes from any text with this free hash generator.
Create md5 hash online — Generate SHA-256, SHA-512, SHA-1 or MD5 hashes from any text with this free hash generator.
Generate sha-512 hash online — Generate SHA-256, SHA-512, SHA-1 or MD5 hashes from any text with this free hash generator.
What is hash calculator used for — Generate SHA-256, SHA-512, SHA-1 or MD5 hashes from any text with this free hash generator.
Which hash algorithm sha-256 sha-512 sha-1 md5 — Generate SHA-256, SHA-512, SHA-1 or MD5 hashes from any text with this free hash generator.

Good to know

Input is UTF-8 encoded before hashing; the same text always produces the same hash, on any device.
Output is lowercase hexadecimal with no prefix — the standard format for checksum comparison.
This is a plain hash tool: no salting, no key stretching. It is not a password-storage solution — use bcrypt/argon2 for passwords.
MD5 and SHA-1 are cryptographically broken (practical collisions exist); they are offered for checksums and legacy compatibility only.

How it works

Hashes are computed by noble-hashes (vendored open-source cryptography library, MIT), an independently audited pure-JavaScript implementation. Input text is UTF-8 encoded before hashing and the digest is rendered as lowercase hexadecimal. Everything runs in your browser — your text is never uploaded. MD5 and SHA-1 are included for checksums and legacy compatibility only: both are collision-broken and must not be used for security purposes.

Examples

SHA-256 of a password-like string

Status: ok — hash "ef92b778bafe771e89245b89ecbc08a44a4e166c06659911881f383d4473e94f".

MD5 checksum of a word

Status: ok — hash "5d41402abc4b2a76b9719d911017c592". Use MD5 for checksums only, never for security.

SHA-1 for a legacy identifier

Status: ok — hash "aaf4c61ddcc5e8a2dabede0f3b482cd9aea9434d".

People also search for these — this tool handles them all:

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