Hash anything. Nothing leaves your browser.
Compute MD5, SHA-256, BLAKE3, bcrypt, and Argon2id hashes instantly — right in this page. No uploads. No latency. No accounts.
SHA-256 hash
a591a6d40bf420404a011733cfb7b190d62c65bf0bcda32b57b277d9ad9f146e is the SHA-256 of “hello” — the demo above will confirm.
Five hash algorithms, one place
One place for fast digests and slow password hashing — all client-side.
MD5
ChecksumsFast fingerprints for file verification and QA. Not for security — we'll tell you why.
Generate →
SHA-256
IntegrityThe workhorse digest for downloads, TLS, and blockchain. Native Web Crypto speed.
Generate →
BLAKE3
ModernThe fastest hash in existence — ~20x SHA-256, running in your browser via WASM.
Generate →
bcrypt
PasswordsSalted password hashing with a tunable cost factor and live verification.
Generate →
Argon2id
KDFThe current recommended password hash, with memory & parallelism controls.
Generate →Compare all five
Type a string once — see MD5, SHA-1, SHA-256, SHA-512, and BLAKE3 digests together.
Compare →How AnyHash works
Three steps. No accounts. No uploads. Your data never leaves your device.
step 01
Choose a tool
Pick MD5, SHA-256, BLAKE3, bcrypt, or Argon2id — or compare all five side by side.
step 02
Enter your input
Type text, paste a string, or upload a file. Everything is processed locally in your browser tab.
step 03
Get instant results
See the hash output immediately as you type. Copy it, verify it, or adjust algorithm parameters.
Why local
Everything on this page runs in your browser — no server round-trip, no upload, no third party touching your data. Here's what that buys you.
Your secrets stay in this tab
Passwords, API keys, and test payloads are hashed locally and never logged, stored, or sold. Open DevTools and watch zero network requests fire.
Zero-latency
Text hashing updates as you type; files hash in milliseconds on your own CPU. No waiting on a server.
Works offline
Once loaded, every tool works without an internet connection. Your secrets stay on your machine.
Verifiable & auditable
Every tool explains exactly what it computes. The source is open and the math is public.
Zero-dependency UI
Static pages, self-hosted fonts, tiny JS. Loads instantly even on a bad connection.
Side-by-side comparison
Type once, see all five digests together, and understand fast vs. slow algorithm trade-offs.
What's your use case?
Jump straight to the tool that matches the job — every one of them runs in your browser.
Verify a file
Paste a checksum and confirm a download is intact before you open anything.
Verify →Hash a password
Generate a salted bcrypt or Argon2id hash — then verify it functionally and locally.
Hash →Pick an algorithm
See MD5, SHA-1, SHA-256, SHA-512, and BLAKE3 side by side and choose the right one.
Compare →Frequently asked questions
Are my inputs uploaded to a server?
No. AnyHash is a static site that runs entirely in your browser. Hashing happens client-side with the Web Crypto API (and WASM for Argon2id), so your plaintext never leaves your device — you can verify this in your browser's network inspector.
Is this free to use?
Yes. Every tool is free and unlimited, with no sign-up, no accounts, and no upload of your input anywhere.
What is the difference between MD5, SHA-256, BLAKE3, bcrypt, and Argon2id?
MD5, SHA-256, and BLAKE3 are fast digest algorithms used for checksums and file integrity, not password storage. BLAKE3 is the fastest of the three — around 20x SHA-256's speed. bcrypt and Argon2id are slow, salted key-derivation functions designed specifically to store passwords.
Are hashes reversible?
No. A hash is a one-way function: you cannot recover the original input from the output. The only attack is guessing: an attacker tries many candidate inputs and compares each hash, which is why password hashes use slow algorithms with salts.
Why is only the SHA family available through the browser's Web Crypto API?
The Web Crypto API ships with SHA-1, SHA-256, SHA-384, and SHA-512. MD5 is implemented locally in JavaScript, and bcrypt/Argon2id run locally via a bundled pure-JS/WASM implementation — still 100% in your browser.
Which hash should I use for passwords?
Use Argon2id if your platform supports it, otherwise bcrypt with a cost factor of at least 10. Never store passwords with a fast digest like MD5 or SHA-256 — those can be cracked in seconds.
Does the hash demo on your homepage upload anything?
No. The demo runs the exact same Web Crypto path as the full tools — type into it and watch your network tab: zero requests fire.
Start hashing in your browser right now
AnyHash is free, private, and instant. Your data never leaves your computer.
Start hashing