Can a hash be reversed?

Not directly. Hashes are one-way, though short or common inputs can be guessed.

Why doesn't my hash match another tool?

Usually an invisible difference like a trailing newline or different character encoding.

Fine for spotting accidental changes, but not for security, since collisions can be created.

How long is a SHA-256 hash?

64 hexadecimal characters (256 bits).

This tool hashes text. Paste the file contents if it's plain text.

Is my input sent anywhere?

No. Hashing happens in your browser.

Hash Generator (MD5, SHA)

Compute MD5, SHA-1, SHA-256 and SHA-512 hashes.

Reading time:: 2 min
Last updated:: 5 August 2026
Price:: Free, no signup

Your text

Results (live)

Type or paste text to see the result.

What the Hash Generator (MD5, SHA) does

Type or paste text and get four fingerprints at once: MD5, SHA-1, SHA-256 and SHA-512. Change even a single letter and every hash changes completely.

SHA hashes are computed with your browser's built-in Web Crypto library, so the results match what command-line tools like sha256sum produce for the same text.

Why the Hash Generator (MD5, SHA) is useful

Hashes let you check that two pieces of text are identical without comparing them character by character, and they are used everywhere from file downloads to API signatures.

Seeing several algorithms side by side is useful when a system asks for one specific format and you're not sure which.

Also known as: hash generator, md5, sha256, sha1, sha512, free hash generator (md5, sha), online hash generator (md5, sha).

How to use the Hash Generator (MD5, SHA)

1
Enter your text
Exactly as it should be hashed — spaces and line breaks count.
2
Pick the hash you need
All four are shown together.
3
Copy it
Paste it into your config, test or comparison.

Key features

MD5, SHA-1, SHA-256 and SHA-512 together
Lowercase hexadecimal output
Browser Web Crypto for SHA algorithms
Updates as you type

Benefits

Compare text without reading it all
Produce test values for code quickly
Keep sensitive input on your device

Real-life use cases

Testing a webhook

A developer hashes a sample payload with SHA-256 to compare against the value their server calculates.

Checking for changes

An editor hashes two versions of a legal clause; different hashes prove someone altered it.

Tips for the best results

A trailing space or newline changes the hash — trim input if results don't match.
MD5 and SHA-1 are broken for security purposes; use SHA-256 or stronger for anything that matters.
Don't use plain hashes to store passwords; use a slow algorithm like bcrypt or Argon2.

Conclusion

Get MD5 and SHA hashes of any text in one place, privately, and pick the one your system expects.

Frequently asked questions

Can a hash be reversed?: Not directly. Hashes are one-way, though short or common inputs can be guessed.
Why doesn't my hash match another tool?: Usually an invisible difference like a trailing newline or different character encoding.
Is MD5 still safe?: Fine for spotting accidental changes, but not for security, since collisions can be created.
How long is a SHA-256 hash?: 64 hexadecimal characters (256 bits).
Can I hash a file?: This tool hashes text. Paste the file contents if it's plain text.
Is my input sent anywhere?: No. Hashing happens in your browser.

Related tools you may need

SHA-1 Generator — Compute a SHA-1 checksum of any text.
SHA-256 Generator — Compute a SHA-256 checksum of any text.
Password Strength Checker — Score a password's strength and estimate crack time.
Password Generator — Generate strong random passwords with configurable length.
UUID Bulk Generator — Generate many RFC 4122 UUIDs at once.

Keep exploring

Browse the full tools directory, filter by category, or read guides on the Text Tools Hub blog.