Hash Generator

UtilitiesNew

Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes.

Nothing Is UploadedRuns In This Browser TabNo Account Needed

How It Works

1

Upload / Input

Select your files or paste your content to get started.

2

Process

The work happens in this browser tab. Your file never leaves your device, so nothing is queued, stored or transmitted.

3

Download / Result

Get your results instantly. Download files or copy output in one click.

Features

SHA-1, SHA-256, SHA-384, and SHA-512 hash generation
Text input or file upload
Auto-update hashes as you type
One-click copy for each hash
Hex string output
Runs entirely in your browser via Web Crypto API

How to use Hash Generator

  1. Enter your input

    Paste text or add a file.

  2. Read all four hashes

    SHA-1, SHA-256, SHA-384 and SHA-512 are computed together — there is nothing to choose. Use SHA-256 for anything current; SHA-1 only to check against a published legacy checksum.

  3. Generate

    The hash is computed in your browser.

  4. Compare carefully

    Check the whole string, not just the first and last few characters.

When to use Hash Generator

  • Verifying a downloaded file matches its published checksum
  • Confirming two files are identical without comparing them byte by byte
  • Generating a checksum to publish alongside a file you are distributing
  • Checking that a file transferred without corruption

FAQ

SHA-1, SHA-256, SHA-384, and SHA-512 — all four are computed at once, so there is nothing to select. MD5 is not among them and cannot be: they come from the browser’s Web Crypto API, which does not implement MD5.
Yes. Upload any file and the tool will compute all hash types for its contents. Large files may take a moment.
No. Hashing runs entirely in your browser using the Web Crypto API. Your text and files never leave your device.
SHA-256 for anything new. SHA-1 is cryptographically broken and should only be used to compare against an existing published checksum, never for security purposes. MD5 is not available here at all — the browser’s Web Crypto API deliberately does not implement it.
No. Hashing is one-way by design — there is no key and no decryption. What attackers do instead is guess inputs and compare hashes, which is why weak passwords remain weak even when hashed.
With SHA-256, that they are almost certainly identical. With SHA-1 it is far weaker evidence, because deliberate collisions can be constructed for it.
No. The hash is computed in your browser, so the file never leaves your device.

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About Hash Generator

A hash is a fixed-length fingerprint of some data. The same input always produces the same hash, and changing even one bit produces a completely different one. That makes hashes ideal for verifying that a file arrived intact, and for confirming two files are identical without comparing their contents directly.

Algorithm choice matters for security but not for integrity checking. SHA-1 is cryptographically broken — it is feasible to construct two different inputs with the same hash — so it must not be used for signatures, passwords or anything an attacker might target. It remains adequate for detecting accidental corruption. MD5, which some projects still publish checksums in, cannot be produced here at all: the Web Crypto API does not implement it, so there is no way to offer it in a browser without shipping a separate implementation.

For anything security-relevant, use SHA-256. And be clear about what a hash is not: hashing is not encryption. It is one-way, there is no key, and there is nothing to decrypt. Hashing a password protects it in storage; it does not hide data you need to read back later.

Tips and limits

  • MD5 is not offered here. The Web Crypto API this runs on does not implement it, and no browser will.
  • Compare the entire hash string — matching the first and last few characters proves nothing.
  • Hashing is one-way. It is not encryption and cannot be reversed.
  • A single changed bit changes the entire hash, which is exactly what makes it useful.
  • Hashing runs locally, so file contents are not uploaded.