SSL & Security

Hash Code Generator

Checksums

Generate a Hash

Generate hash codes for text or files using various cryptographic algorithms.

Tool features

Advanced hash generation with multiple algorithms and formats
4 features

Multiple Algorithms

Support for MD5, SHA-1, SHA-256, SHA-512, SHA-3, BLAKE2b, and CRC32

Secure Processing

Client-side and server-side hash generation with secure algorithms

File & Text Support

Generate hashes for both text input and file uploads

Fast Generation

Quick hash generation with multiple output formats (Hex, Base64)

What is a hash & how it works

Fixed-length fingerprints for any data

A hash function turns any input, from one word to a large file, into a fixed-length fingerprint. The same input always gives the same hash, the smallest change produces a completely different one, and for cryptographic hashes you cannot work back from the hash to the input.

Hashes are used to verify downloads, detect changed files, deduplicate data and build signatures. This tool computes MD5, SHA-1, SHA-256, SHA-512, SHA3-256, BLAKE2b and CRC32 for text or files, in hex or Base64. MD5 and SHA-1 are broken for security use; prefer SHA-256 or stronger.

SHA-256
The standard choice for integrity checks and signatures.
MD5 / SHA-1
Fast but collision-broken; fine for non-security checksums only.
CRC32
An error-detection checksum, not a cryptographic hash.

How to use this tool

Generate a hash in four steps
1
Add the input
Type or paste text, or choose a file to hash.
2
Pick the algorithms
Select one or more algorithms, such as SHA-256 and SHA-512.
3
Choose the output
Get the digest as hexadecimal or Base64.
4
Compare
Match the result against a published checksum to verify the file or text.

Related tools

Keep debugging with tools from the same suite
3 tools
Hash Code Generator
Generate hash codes and checksums for data integrity verification
Password Generator
Generate secure passwords with customizable length, complexity, and character sets
Base64 Encoder Decoder
Encode and decode text or data to/from Base64 format with file support

Frequently asked questions

Common questions about hashes
5 Q&A

SHA-256 for integrity checks and anything security-related. SHA-512 or SHA3-256 if a specification asks for them. Use MD5, SHA-1 or CRC32 only when a legacy system requires them.

No. General-purpose hashes are designed to be fast, which makes passwords easy to brute-force. Store passwords with a slow, salted algorithm such as Argon2id, bcrypt or scrypt.

Not mathematically. But short or common inputs, such as simple passwords, can be found by looking the hash up in precomputed tables, which is why salting matters.

Usually because the inputs differ invisibly: a trailing newline, Windows vs Unix line endings, or a different text encoding. Hashing a file avoids copy-paste differences.

Use sha256sum file on Linux, shasum -a 256 file on macOS, or Get-FileHash file -Algorithm SHA256 in PowerShell.