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SHA-256 Hash Generator

Turn any text into its SHA-256 hash as you type, with SHA-1 and SHA-512 alongside and a one-tap uppercase switch.

Hashed live as you type. Everything runs in your browser and nothing is uploaded.

Case

SHA-256 hash

Enter some text and its SHA-256 hash will appear here.

How to generate a SHA-256 hash online

  1. Type or paste text

    Enter or paste any text into the box and its SHA-256 hash appears instantly, with no button to press.

  2. Read the digest

    The 64-character SHA-256 hash is shown in lowercase hexadecimal, ready to read, copy, or verify.

  3. Compare or re-case

    Switch to uppercase in one tap, and check the SHA-1 and SHA-512 digests shown alongside for comparison.

  4. Copy what you need

    Use the copy button on any digest, or the main button to copy the SHA-256 hash to your clipboard.

Why use this tool

SHA-256 the instant you type

The digest recomputes a moment after every keystroke or paste, so there is no compute step and no waiting on a server.

SHA-1 and SHA-512 alongside

The same text is also hashed with SHA-1 (40 characters) and SHA-512 (128 characters), so you can compare formats or grab whichever a system expects.

Lowercase or uppercase hex

One toggle re-cases every digest at once, for specs or legacy systems that insist on capital letters.

Copy any digest in one click

Each hash has its own copy button, and the primary button copies the SHA-256 value straight to your clipboard.

Runs entirely in your browser

Everything happens on your device. The text you hash is never uploaded, logged, or stored.

About this tool

SHA-256 is a cryptographic hash function from the SHA-2 family that turns any input, from a single word to a large block of text, into a fixed 256-bit fingerprint written as 64 hexadecimal characters. This tool computes that hash the moment you type or paste, entirely on your device. The same text always produces the same digest, and the smallest change, even a single character or a trailing space, produces a completely different result.

Alongside the main SHA-256 output you also get the SHA-1 (40 characters) and SHA-512 (128 characters) digests of the same text, so you can compare formats or grab whichever a system expects without switching tools. Every digest can be copied on its own, and a single toggle switches the whole set between lowercase and uppercase hexadecimal for specs or legacy systems that require capitals. Common uses include fingerprinting content, generating a value to check data integrity, and comparing a string against a stored hash.

SHA-256 is a one-way hash, not encryption: there is no key and no way to reverse a digest back into the original text. It is a strong choice for integrity checks and content fingerprints, but on its own it is not suitable for storing passwords, which need a slow, salted password hash such as bcrypt, scrypt, or Argon2. To hash files or compute MD5 as well, use the broader hash generator. To read or convert the hexadecimal output into other bases, try the number base converter.

Frequently asked questions

What is a SHA-256 hash?
SHA-256 is a cryptographic hash function that maps any input to a fixed 256-bit value, shown as 64 hexadecimal characters. It is deterministic, so the same text always yields the same digest, and one-way, so the original text cannot be recovered from the hash.
Is my text uploaded anywhere?
No. The hash is computed entirely in your browser. The text you enter never leaves your device, is never sent to a server, and is not stored or logged.
Why show SHA-1 and SHA-512 as well?
Different systems publish digests in different formats. Showing SHA-1 and SHA-512 next to SHA-256 lets you compare them or copy whichever one a checksum, config file, or API expects, without opening another tool.
Can I get the hash in uppercase?
Yes. Digests are shown in lowercase hexadecimal by default, and a single toggle switches every value to uppercase for tools or formats that require capital letters.
Can I use SHA-256 to store passwords?
Not on its own. Plain SHA-256 is fast, which makes it a poor fit for password storage. Use a slow, salted password hash such as bcrypt, scrypt, or Argon2 instead. SHA-256 is well suited to integrity checks and content fingerprints.
Does the same text always give the same hash?
Yes. Hashing is deterministic, so identical input always produces an identical digest. Changing a single character, or even adding a trailing space, produces a completely different SHA-256 value.

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