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Hash generator (MD5, SHA-2, bcrypt)

Produce MD5, SHA-1, SHA-256, SHA-512 and bcrypt.

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Choosing an algorithm

Integrity → SHA-256; password storage → bcrypt. MD5/SHA-1 are broken for new work.

Algo Use for Note
MD5 Legacy checksums Collision-weak — avoid new use
SHA-1 Legacy signatures Do not use in new designs
SHA-256 Integrity / fingerprint Files and TLS digests
SHA-512 Longer SHA-2 digest SHA-2 family
bcrypt Password storage Different salt every time

What the hash generator does

A hash is a one-way digest; it does not decrypt. SHA-256 is stable for the same input; bcrypt differs each time because of salt — that is expected.

Generation happens on this request; IPTOOL does not store the text. Prefer bcrypt for passwords and SHA-256 for file integrity.

Examples

File fingerprint
SHA-256(text)Must match on two machines.
Password
bcryptTwo runs differ; verify with the library.

Frequently asked questions

Is hashing encryption?

No. Encryption can be reversed. A hash is not designed to recover the input.

Is MD5 still used?

For legacy checksums, yes. It is collision-prone; do not use it in new designs.

Why is SHA-1 listed?

Legacy interop. TLS and git have moved away from it.

What is bcrypt cost?

The work factor; higher is slower. The tool uses a reasonable default.

Does the text go to the server?

The hash API runs on the server. Do not hash secrets you would not send; prefer a local tool.