Hash Generator Online Free: MD5, SHA-1, SHA-256, SHA-512

Checking a download, comparing two pieces of text, or creating a checksum for a script: all of these start with a hash. The PDFFlowState Hash Generator is a free hash generator that creates MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes in your browser, with no account.

Open the Hash Generator

What does Hash Generator do?

Hash Generator turns text into a fixed-length hash using these algorithms: MD5, SHA-1, SHA-256, SHA-384 and SHA-512. Use it as an MD5 generator, SHA-256 hash online tool or all-in-one hash creator. People also search for it as generate MD5 hash, calculate MD5 online, calculate SHA256 online and MD5 online.

What is a hash?

A hash is a short fingerprint of some data. The same input always gives the same hash, and a tiny change gives a completely different one. Hashes cannot be turned back into the original text, which is why they are used to check that data has not changed.

How to generate a hash

1. Open the tool. Go to Hash Generator. It works on phone and desktop.
2. Enter your text.
3. Read the results. The tool shows MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes.
4. Copy the one you need.

No sign-up is needed, so it is a free way to generate a hash online.

Which hash should I use?

• SHA-256, SHA-384, SHA-512: the modern choices for checksums and integrity checks.
• SHA-1 and MD5: fine for quick comparisons and legacy systems, but they are considered weak for security purposes.

A note on passwords

Searches like password hash generator, MD5 password encryption and create password hash are common, but plain MD5 or SHA hashes are not suitable for storing passwords. Real password storage uses slow, salted algorithms such as bcrypt or Argon2, which this tool does not provide. MD5 is also a hash, not encryption, and cannot be decrypted.

Related tools

• Need a strong password to hash or use? Try Password Generator.
• Need a unique ID? Try UUID Generator.
• Encode or decode text with Base64 Encode and Decode.

Frequently asked questions

Is the hash generator free? Yes. It is free and needs no sign-up.

Which hashes are supported? MD5, SHA-1, SHA-256, SHA-384 and SHA-512.

Can I reverse a hash? No. Hashes are one-way.

Can I generate bcrypt or Argon2 hashes? Not at the moment.

Can I hash a file? This tool hashes text.

Generate your hash now

Try the free Hash Generator or browse all the developer tools on PDFFlowState.