Why compute ten hashes instead of just the one I need?

Comparing outputs side by side is useful when you're not sure which algorithm a piece of documentation or another tool expects, or when you need several algorithms for the same input anyway (for example, publishing both a SHA-256 and a CRC32 checksum for a release).

Are these computed independently, or derived from each other?

Independently. Each algorithm runs against the same original UTF-8-encoded input bytes; none of them are derived by hashing another algorithm's output.

Where can I find every one of these algorithms as its own dedicated tool?

This category has a dedicated calculator for each of these algorithms (and many more, including SHA-3, BLAKE2, Keccak, and legacy database hash formats) if you only need one and want its full write-up.

Is MD5 or SHA-1 still safe to use here?

For checksums and non-adversarial deduplication, they're fine. For anything security-sensitive, like password storage or digital signatures, both are cryptographically broken for collision resistance; use SHA-256 or better, and a dedicated password hash like bcrypt or Argon2 for passwords specifically.

Hash Generator - MD5, SHA-1, SHA-256, SHA-512 & More At Once

Overview

Introduction

Figuring out which hash algorithm a downstream system expects often means running the same input through several calculators one at a time.

This tool runs it through ten at once, MD5, SHA-1, SHA-224, SHA-256, SHA-384, SHA-512, SHA3-256, RIPEMD-160, CRC32, and BLAKE3, entirely in your browser.

What Is Hash Generator?

A single-input, multi-output hash calculator that reuses this category's existing per-algorithm calculators rather than reimplementing any of them, so every result matches what you'd get from the dedicated tool for that algorithm.

It's meant for comparison and convenience, not as a replacement for the dedicated calculators, which include algorithm-specific FAQ and detail this tool doesn't repeat.

How Hash Generator Works

Your input is UTF-8-encoded once, then passed to each of the ten algorithms' existing hasher functions, and every result is displayed as lowercase hex alongside its algorithm name.

Nothing about the input or the results ever leaves your browser.

When To Use Hash Generator

Use it when you need to compare hash outputs across algorithms, or when you're not yet sure which one a spec, API, or piece of documentation expects.

It's also a fast way to generate a full set of checksums for a short piece of text without opening ten separate tools.

Often used alongside SHA-256 Hash Calculator, MD5 Hash Calculator and HMAC Generator.

Features

Advantages

Computes ten algorithms in one pass instead of requiring ten separate tool visits.
Reuses this category's existing, individually-documented calculators, so results are consistent with the dedicated tools.
Makes it easy to spot that two algorithms happen to produce the same output length (a common source of confusion, like MD5 and NTLM both being 32 hex characters).

Limitations

Only covers ten common algorithms; this category has calculators for dozens more (BLAKE2, Keccak, SHAKE, legacy database hash formats, and more) as dedicated tools.
Doesn't compute a keyed HMAC for any of these algorithms; use the dedicated HMAC Generator for that.

Examples

Hashing a short string

Input

"hello"

Output

MD5: 5d41402abc4b2a76b9719d911017c592
SHA-256: 2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824
...

Every algorithm hashes the exact same UTF-8 bytes for "hello", so the outputs differ only because the algorithms themselves differ.

Best Practices & Notes

Best Practices

Use a dedicated password hash (bcrypt, scrypt, or Argon2) rather than any of these general-purpose digests for storing passwords.
Prefer SHA-256 or SHA-3 for new integrity-checking use cases; MD5 and SHA-1 remain useful for legacy compatibility and non-adversarial checksums only.
Cross-check a result against this category's dedicated calculator for that algorithm if you need its full documentation or FAQ.

Developer Notes

Each algorithm is invoked through this category's existing `createHashTransform`-based calculator functions (MD5 and SHA-1 from `@noble/hashes/legacy.js`, SHA-2 family from `@noble/hashes/sha2.js`, SHA3-256 from `@noble/hashes/sha3.js`, BLAKE3 from `@noble/hashes/blake3.js`, CRC32 from this category's own implementation), so there's a single source of truth per algorithm shared with the dedicated single-algorithm tools.

Hash Generator Use Cases

Comparing hash outputs across algorithms for the same input
Generating a full set of checksums for a short piece of text in one step
Learning how output length differs (or coincidentally matches) across algorithms

Common Mistakes

Assuming two hashes of the same length (like MD5 and NTLM, both 32 hex characters) must be the same algorithm; length alone doesn't identify an algorithm.
Using MD5 or SHA-1 output from this tool for password storage instead of a dedicated password hash like bcrypt or Argon2.

Tips

Use the Password Hash Identifier if you have a hash string and need to guess which algorithm produced it, rather than generating one from scratch.
When comparing against a command line, use `printf '%s' 'text' | sha256sum` rather than `echo 'text' | sha256sum`; `echo` appends a trailing newline, which changes the bytes being hashed and therefore the digest.

Hash Generator