Hash Calculator

Generate cryptographic hashes (MD5, SHA-1, SHA-256, SHA-512) for any text. Essential tool for integrity verification and security.

Text to hash

Select Algorithm

How to use the Hash Calculator

Type or paste the text you want to hash.
Select the desired algorithm (SHA-256 is the default).
The hash will be generated automatically.
Click 'Copy' to transfer the hash to your clipboard.

Features

MD5, SHA-1, SHA-256, and SHA-512 support
Instant and automatic generation
Clean and intuitive interface
100% client-side: your data remains private

Perguntas Frequentes

What is a cryptographic hash?

A cryptographic hash is a function that transforms any amount of data into a fixed-size string. It is used to verify data integrity, store passwords securely, and more.

Which algorithm should I use?

For modern security, use SHA-256 or SHA-512. MD5 and SHA-1 are considered insecure for cryptographic purposes but still useful for simple checksums.

Can a hash be reversed?

No. Hash functions are one-way. However, hashes of common texts can be found in 'rainbow tables'. For passwords, always use salt and dedicated algorithms like bcrypt.

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