Hash Generator

Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hex digests from any text at once — fast, free, and entirely in your browser.

Hash Generator features

Five Algorithms At Once

Computes MD5, SHA-1, SHA-256, SHA-384, and SHA-512 digests from a single input in one pass.

Web Crypto Powered

SHA-family hashes use the browser's native Web Crypto API for fast, standards-based results.

Instant Output

Digests update immediately as you type — no submit button or page reload required.

100% Client-Side

Your text never leaves your browser. Nothing is uploaded to any server.

One-Click Copy

Copy any individual hex digest to your clipboard with a single button.

Works Offline

Once the page is loaded, hashing runs entirely on your device with no connection needed.

Overview

A hash is a fixed-length fingerprint computed from input data by a cryptographic hash function. The same input always produces the same digest, and even a tiny change to the input — flipping a single character — produces a completely different output. Hashes are commonly written as hexadecimal strings, like a 64-character value for SHA-256.

This Hash Generator takes your input text and computes MD5, SHA-1, SHA-256, SHA-384, and SHA-512 digests all at the same time, so you can compare algorithms side by side or copy whichever one you need.

The SHA-family hashes are produced using the browser's native Web Crypto API, while MD5 is computed with a small built-in implementation (MD5 is not part of Web Crypto). Everything runs locally on your device.

Hashes are widely used for checksums (verifying a file or message was not altered), deduplication, and indexing. Remember that hashing is one-way: you cannot reverse a digest back into the original text.

How to use the Hash Generator

Paste or type your text into the input field.
The tool instantly computes all five digests as you type.
Read the MD5, SHA-1, SHA-256, SHA-384, and SHA-512 results, each shown in hexadecimal.
Copy the specific hash you need with its copy button.
Compare a copied digest against a published checksum to verify integrity.

Good To Know

A few important caveats when using hashes:

Hashing is not encryption. It is a one-way fingerprint and cannot be reversed back into your original text.
MD5 and SHA-1 are broken for security and collision resistance. They are still fine for non-security checksums, but should not be used for digital signatures or anything trust-sensitive.
Never hash passwords with raw MD5 or SHA. Use a slow KDF like bcrypt, scrypt, or Argon2 with a per-user salt.
The hex digests here are computed from the text exactly as entered, including whitespace and trailing newlines, which will change the result.

Private by design

Every byte you paste into the Hash Generator is processed locally in your browser. Formatly makes no network request with your data, logs nothing, and stores nothing on any server — so it is safe for API responses, tokens, configuration and other sensitive content. Your most recent input and theme are saved only in your own browser's local storage.

Hash Generator FAQ

Is my input private and safe?

Yes. All hashing happens locally in your browser using the Web Crypto API and a built-in MD5 routine. Your text is never uploaded, logged, or sent to any server.

Does this hash generator work offline?

Yes. After the page has loaded once, no network connection is needed. The computation runs entirely on your device, so you can generate hashes with no internet access.

What is the difference between MD5, SHA-1, and the SHA-2 hashes?

MD5 (128-bit) and SHA-1 (160-bit) are older and are considered broken for security because collisions can be engineered. The SHA-2 family — SHA-256, SHA-384, and SHA-512 — produces longer digests and is currently recommended for integrity and security use.

Can I reverse a hash back into the original text?

No. Hashing is one-way by design. You cannot decrypt or reverse a digest to recover the input. Identical input always yields the same hash, but the function only works in one direction.

Why is the same text giving the same hash every time?

That is expected — cryptographic hash functions are deterministic. The same input always produces the same digest. This is what makes hashes useful for verifying that data has not changed.

Can I use this to hash passwords?

No, plain MD5 or SHA hashing is not suitable for passwords. Use a purpose-built, slow key derivation function such as bcrypt, scrypt, or Argon2 with a unique salt instead.

Is hashing the same as encryption?

No. Encryption is reversible with a key, while hashing is one-way and cannot be undone. A hash is a fingerprint of data, not a protected, decryptable copy of it.