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Hash Generator

Generate SHA-256, SHA-384 or SHA-512 hashes from text or files.

Processed locally in your browser — your data is not uploaded.
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How to use Hash Generator

  1. Choose a SHA-2 algorithm.
  2. Enter text or select a file.
  3. Generate and copy the hexadecimal hash.

Is hashing encryption?

No. Hashing is one-way and cannot be decrypted. It is commonly used to compare data integrity.

No sign-up is required. The calculation or transformation happens in this browser tab and the result is available immediately.

BEFORE YOU RELY ON THE RESULT

Practical guidance

A cryptographic hash is a fixed-length fingerprint of bytes. It is useful for checking whether two copies are identical, but it does not hide or encrypt the original data.

Algorithms and behavior

Metyris supports SHA-256, SHA-384 and SHA-512 through the browser Web Crypto API. A one-byte change produces a different hexadecimal digest.

Hashing is one-way: there is no decrypt action. A hash alone does not prove who created a file, and an unkeyed hash is not a secure password-storage scheme.

Text and file limits

Text is encoded as UTF-8 and limited to 2,000,000 characters. Files are limited to 100 MB and read into browser memory in one operation, so available device memory can become the practical limit sooner; very large files are better checked with a streaming desktop utility.

The file name is shown only in the current interface. The file bytes and resulting digest are processed locally and are not sent to a Metyris API.

Comparing a checksum

Use the same algorithm as the publisher, then compare every hexadecimal character. Obtain the expected digest through a trusted channel; matching an attacker-provided file to an attacker-provided hash proves little.

Related workflow

PRACTICAL GUIDESCleaning and validating data locally in your browserSeparate syntax checks, text cleanup, encoding and integrity verification while keeping working data in the browser.

Good to know

Why can similar files have different hashes?+

Any byte-level difference produces another digest.

Which algorithms are available?+

SHA-256, SHA-384 and SHA-512 are supported through Web Crypto.

Is my input uploaded?+

No. This tool runs in your browser and does not send input or results to Metyris or a third-party processor.

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