nice-hash.com

A complete cryptographic toolkit — all algorithms run 100% locally in your browser. No uploads. No tracking. No servers.

SHA-256 SHA-512 SHA-1 MD5 RIPEMD-160 GOST R 34.11 SHA3-256 ⛏ Proof of Work ✨ Nice Hash 🔑 Passwords 🌱 BIP-39
Start Hashing → ✨ Find a Nice Hash
🔒 100% client-side. Every hash is computed directly in your browser using the WebCrypto API and pure JavaScript. Your files and text never leave your device — there is no server, no logging, no analytics.
Hash Functions
SHA-256
The cryptographic workhorse of the modern internet. Used in Bitcoin, TLS, code signing. No known attacks.
256-bit Secure NIST
SHA-512
Double output of SHA-256, often faster on 64-bit hardware. Ideal for certificates and archival integrity.
512-bit Secure
SHA-1
Designed by the NSA in 1995. Broken by the SHAttered collision attack in 2017. Legacy use only.
Broken 160-bit
MD5
Once ubiquitous, now cryptographically broken. Collisions can be generated in seconds. Checksums only.
Broken 128-bit
RIPEMD-160
Dual-stream design from KU Leuven. Used in Bitcoin address derivation (HASH160) and PGP fingerprinting.
160-bit Bitcoin
SHA3-512
NIST FIPS 202 sponge-based hash — Keccak construction. Post-quantum safe, immune to length-extension attacks.
512-bit NIST 2015
SHA3-256
NIST FIPS 202 sponge-based hash. 256-bit output, immune to length-extension attacks. Keccak construction, used in Ethereum.
256-bit NIST 2015
Interactive Tools
🔀 All Hashes
Generate all 7 hash algorithms at once from a single input — text or file. Compare SHA-256, SHA-512, SHA-1, MD5, RIPEMD-160, GOST and SHA3-256 side by side.
7 algorithms Side by side
⛏ Proof of Work
Mine a hash with N leading zero hex digits — just like Bitcoin block mining. Configure difficulty and watch the brute-force search live.
SHA-256 Live mining
✨ Nice Hash Finder
Search for a hash containing your chosen word — a vanity hash, found by brute force. Enter a word like cafe or facade.
Vanity hash All algos
⚡ Hash Benchmark
30-second escalating challenge. Each round hashes N times, then N++. Compete for the highest iteration score.
Score-based All algos
🔑 Password Generator
Generate cryptographically secure passwords. Custom length, charsets, entropy display, batch generation — all via CSPRNG.
CSPRNG Entropy bits
🌱 BIP-39 Seed Generator
Generate HD wallet mnemonic phrases (12–24 words) with PBKDF2-SHA512 seed derivation and optional passphrase support.
Bitcoin / ETH PBKDF2