Hash Generator

MD5, SHA-1, SHA-256 and SHA-512 for text or a file.

Free
No signup
Nothing uploaded
No watermark

Text to hash

Or hash a file

Verify against a published checksum

Paste the hash a vendor published and it will be matched against the list above.

How to Use the Hash Generator Online

MD5, SHA-1, SHA-256 and SHA-512 for text or a file, computed in the page. A hash is one-way by design — you cannot recover the input from it — which is why hashing a password before storing it protects users if the database is stolen.

No software to install Free Works on any device

Step-by-Step Guide to Using the Hash Generator

1

1. Paste text, or choose a file to hash
2

2. MD5, SHA-1, SHA-256, SHA-384 and SHA-512 are all calculated at once
3

3. Paste a published checksum into the verify box to confirm a match

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What is the Hash Generator?

Why Use Security and Crypto Tools Locally?

Hashes, keys, tokens and passwords are exactly the things you should not paste into a stranger’s server. Here they are made and checked inside your browser, so secrets stay on the machine in front of you.

“A secret generated on your own device stays yours.”

Strong random passwords
Keys generated on your device
Two-factor codes for testing
Files checked against checksums

Hashes in every common algorithm
JWTs decoded and checked
Security headers written for you
No secrets sent anywhere

Popular Uses for Hash and Key Generators

Developers and careful users reach for these during everyday security work.

New passwords Generate a long random password or passphrase for a new account.
Verifying downloads Hash a file with SHA-256 and compare it with the value the publisher lists.
Debugging logins Decode a JWT to see its claims and check the signature with your secret.
SSH and API keys Create an RSA or Ed25519 key pair or an API key for a new service.
Website headers Write a Content Security Policy and other security headers for a web server.
Testing two-factor login Generate TOTP codes and secrets to test an authenticator setup during development.
Script integrity Make an SRI hash so a browser can tell if a CDN script was changed.
Password strength Measure how many guesses a password would take, using its entropy.

What You Can Do with the Hash Generator

Accepts TEXT, ANY

Computed with the browser’s own WebCrypto implementation

Hashes the raw bytes, so a value can be checked against a publisher’s stated checksum

Works on a whole file rather than a pasted excerpt of it

Why Use ToolXkit for Hash Generator?

Your files stay with you

Everything runs inside your browser. Nothing you open or type is uploaded to a server.

Crypto Tools for Different Users

Web developers

Create security headers, SRI hashes and JWTs while building and testing apps.

System administrators

Generate SSH keys, check fingerprints and verify file checksums on the go.

Security testers

Decode tokens, inspect PEM files and test HMAC signatures without extra tooling.

Computer science students

See how hashing, encryption and key pairs behave by trying them yourself.

Everyday users

Make strong passwords and passphrases that are never sent over the internet.

IT teams

Create API keys and OAuth values for new integrations in a safe place.

Best Times to Generate a Key or Hash

Local crypto tools make sense when you are:

Setting up a new server
Creating a strong password
Checking a downloaded installer
Debugging a sign-in problem
Adding security headers to a site
Testing an authenticator app
Learning how encryption works
Rotating an old API key

Frequently Asked Questions

Answers to common questions about this tool.

Which algorithm should I pick?

SHA-256 for anything that matters. MD5 and SHA-1 are still fine for a non-security checksum — confirming a download arrived intact — but both are broken for anything where an attacker chooses the input, and neither should guard a signature or a password.

Can I hash a password with this?

You can, but you should not store the result. Passwords need a slow algorithm with a per-user salt, such as bcrypt or Argon2; a plain fast hash is the thing password crackers are built to reverse at billions of guesses a second.

Are the keys and passwords made here truly random?

They come from the browser’s built-in secure random number generator, the same source used for encrypted connections. That is suitable for passwords, keys and tokens.

Does Hash Generator send my secrets to a server?

No. Everything is worked out locally, and what you type or generate is neither uploaded nor logged. For real production keys, it is still wise to generate them on the machine where they will be used.

Is MD5 or SHA-1 safe to use?

Not for passwords or signatures, since both can be attacked. They are still fine for spotting accidental changes in a file. For security work, choose SHA-256 or stronger.

Is Hash Generator free for commercial projects?

Yes. Use it for personal, work or client projects at no cost and without an account. What you generate belongs to you, and the site keeps no copy.

Can a hash be reversed to get the original text?

No. A hash is one-way. Short or common passwords can still be guessed by trying many candidates, which is why a long, random password matters more than the hash you pick.

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