Hash Generator

5 algorithms + HMAC + file hashing + compare, all in browser.

MD5 (128 bits)

...

Legacy. Broken for security but still common in file integrity checksums.

SHA-1 (160 bits)

...

Legacy. Cryptographically broken (collisions found in 2017). Don't use for security.

SHA-256 (256 bits)

...

Secure. Default choice for modern hashing.

SHA-384 (384 bits)

...

Secure. SHA-2 family, longer output.

SHA-512 (512 bits)

...

Secure. Largest SHA-2 family hash.

Hashing runs in your browser. Inputs and files never sent.

Algorithms

Yes

HMAC support

Unlimited

Free uses per day

Browser

Runs in

What is the Hash Generator?

A hash generator computes a fixed-size cryptographic fingerprint from any text or file. This tool runs five algorithms (MD5, SHA-1, SHA-256, SHA-384, SHA-512) plus HMAC for authenticated hashes. The SHA-2 family uses the browser's native Web Crypto API for speed; MD5 ships as a pure-JS implementation since Web Crypto doesn't include it.

Most online hash tools support 1-2 algorithms and ship single-input mode. We support five algorithms side-by-side, file hashing, HMAC signing, and side-by-side hash comparison. Browser-only, no upload, no signup.

How it works

Step 1

Type or drop

Paste text or drop a file. Tabs for text input, file input, HMAC mode, and compare.

Step 2

All algorithms at once

MD5, SHA-1, SHA-256, SHA-384, SHA-512 computed in parallel. Pick the one you need.

Step 3

Compare or copy

Side-by-side compare for verifying downloads. Copy any hash to clipboard.

Features

5 algorithms

MD5 (legacy checksum), SHA-1 (legacy), SHA-256 / SHA-384 / SHA-512 (secure).

HMAC support

Sign messages with a secret key. SHA-1 / SHA-256 / SHA-384 / SHA-512.

File hashing

Drop any file up to ~100MB. Useful for verifying downloads against publisher checksums.

Side-by-side compare

Paste your computed hash + the expected hash, see match / mismatch instantly.

All at once

Type text and see all 5 algorithm outputs simultaneously. Pick the one you need.

Web Crypto native

SHA-2 family uses the browser's hardware-accelerated subtle.digest API.

Algorithm notes

Each algorithm shows its bit length, security status, and recommended use case.

Browser only

Input never sent. MD5 and SHA-2 both compute locally. No server endpoint.

Why this generator

All algorithms in one view

Most generators show one algorithm at a time. We show all five so you can pick after seeing what you get.

HMAC included

JWT signing, API request signing, webhook verification. Most free tools skip HMAC entirely.

File hashing locally

Some online hashers refuse files larger than a few MB. We handle ~100MB locally with no upload.

Browser-only

Input often includes secrets (HMAC keys, sensitive payloads). We never see them. md5hashgenerator.com sends inputs to their server.

Who uses it

Backend devs

Computing API request signatures, JWT tokens (HS256), webhook signatures.

Security pros

Verifying file integrity, checking signed downloads, debugging signature mismatches.

DevOps

Hashing config files for change detection, computing HMAC for service auth.

Crypto students

Learning what hash output looks like, testing collision examples, understanding HMAC.

Real use cases

You downloaded an Ubuntu ISO and need to verify the SHA-256 matches Canonical's published hash. Drop the file, copy the SHA-256, paste the published hash into compare. Match in green = file is intact.
You're debugging a webhook signature mismatch. Compute HMAC-SHA-256 with your shared secret + the request payload, compare to the X-Signature header you received.
You need to compute a JWT signature manually for testing. Use HMAC-SHA-256 with your secret + 'header.payload' as the message. Output is the signature segment.
You're caching expensive API responses by content hash. Run SHA-256 on the request URL + body, use the hex digest as the cache key.
You're explaining what hash collisions are. Show MD5 of two different inputs that happen to collide (the famous executable example), then SHA-256 of the same -different.
You need to dedupe a folder of images. Hash each file with SHA-256, group by hash, the dupes share a hash.

Compared with other tools

Feature	Molixa	md5hashgenerator	DenCode	CyberChef
Algorithms	5 + HMAC	MD5 only	8	All
File hashing	Yes	No	Limited	Yes
HMAC	Yes	No	Yes	Yes
Side-by-side compare	Yes	No	No	Manual
All at once	Yes	Single	Single	Manual
Free, no signup	Yes	Ads	Free	Open source
Browser-only	Yes	Server	Yes	Yes

Frequently asked questions

Is the hash generator free?▾

Yes. Unlimited use, no signup, browser-only. md5hashgenerator.com is free but ad-supported and ships single algorithms; we ship five plus HMAC and file hashing.

Which algorithms are supported?▾

Five: MD5, SHA-1, SHA-256, SHA-384, SHA-512. SHA-2 family runs via the browser's Web Crypto API (fast, native). MD5 runs via a pure-JS implementation since Web Crypto doesn't include it.

Should I use MD5 for security?▾

No. MD5 is cryptographically broken -collisions can be generated cheaply. Don't use it for password storage, signatures, or any security-sensitive context. It's still fine for non-security uses like file integrity checksums or cache keys.

Is SHA-1 safe?▾

Not for security. SHACK1 was broken in 2017 (Google's SHAttered attack found a real collision). Migrate any SHA-1 signatures or HMACs to SHA-256 or stronger. SHA-1 is only acceptable for non-security checksums.

What's HMAC?▾

Hash-based Message Authentication Code. Combines a hash function with a secret key to produce an authentication tag. Used in JWT signatures (HS256 = HMAC-SHA-256), API request signing, webhook verification. We support SHA-1 / SHA-256 / SHA-384 / SHA-512 HMAC.

Can I hash a file?▾

Yes. Drop the file, pick the algorithm, get the hex digest. Used for verifying downloaded files match the publisher's checksum, deduplicating files by content, content-addressable storage.

How big a file can I hash?▾

Up to about 100MB depending on browser memory. The whole file gets read into memory before hashing. For multi-GB files, use a streaming CLI tool like `sha256sum`.

Is my input sent to a server?▾

No. All hashing happens via Web Crypto (subtle.digest) or the bundled MD5 implementation. Your text or file bytes never leave the page. Some online hash tools log inputs for analytics; we don't run any server endpoints.

Can I compare two hashes?▾

Yes via the side-by-side view. Useful when downloading software and comparing your computed hash to the publisher's posted hash. Mismatch means the file was tampered with or corrupted in transit.

Why do hashes look different even for the same input?▾

They shouldn't. If they do, check for trailing whitespace, line ending differences (LF vs CRLF), or character encoding (UTF-8 vs Latin-1). The same logical text can have different byte sequences which produce different hashes.

Generate hashes now

5 algorithms, HMAC, file hashing, compare. Free unlimited.

Open the hash generator

Built and reviewed byMolixa AI, Molixa AI

Last updated: May 14, 2026

The Hash Generator page is built, reviewed, and maintained by the Molixa team. We use the tool we ship and update the docs when the behavior changes.

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