EazyTools4u

SHA-256 Hash Generator

Free online SHA-256 hash generator. Compute SHA-256 checksums for text and files instantly in your browser. The industry standard for download verification and security.

Text mode — hashes your input as UTF-8 characters

Best for strings, passwords, JSON, and code. Need to verify a download against a published checksum? Switch to and drop the file in — text mode cannot reproduce a file checksum.

0 bytes (UTF-8)
SHA-2256-bit

Enter text above to generate SHA-256 hash

Text encoded as UTF-8 · All processing is local

Related Hash Generators

SHA-512MD5SHA-224SHA-384SHA-512/224SHA-1SHA3-256Keccak-256

Need all algorithms at once? Open the full Hash Generator for every supported algorithm.

What is SHA-256?

SHA-256 is the most widely used member of the SHA-2 family. It produces a 256-bit (64 hex character) digest and is the default choice for file checksums, blockchain (Bitcoin), TLS certificates, and API signatures. Published by NIST in 2001, SHA-256 has no known practical collisions and is considered secure for virtually all mainstream applications.

Common use cases:

  • Verifying software download checksums (Linux ISOs, npm packages, etc.)
  • Bitcoin block header hashing and Merkle trees
  • API request signing (HMAC-SHA256)
  • Certificate and TLS fingerprinting

Examples

InputSHA-256 Hash
Eazytools4u7388f1b5f362df1ec1ea7f8cbfc4bf8cf5f018439ffdf9deec34b04bdd0c89a6
abcba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad
hello2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824

Programming Examples

Node.js
const crypto = require("crypto");

const hash = crypto.createHash("sha256")
  .update("hello", "utf8")
  .digest("hex");

console.log(hash); // SHA-256 hex digest
Python
import hashlib

digest = hashlib.sha256(b"hello").hexdigest()
print(digest)  # SHA-256 hex digest
OpenSSL CLI
echo -n "hello" | openssl dgst -sha256 -hex

Frequently Asked Questions

Why is SHA-256 the most common checksum?

SHA-256 offers a strong security margin, wide library support, and a digest length that fits comfortably in URLs and UI. Most open-source projects publish SHA-256 checksums for releases.

How do I verify a downloaded file?

Switch to File mode, drop the file in, and compare the SHA-256 output with the checksum on the download page. Hex case does not matter.

Is SHA-256 the same as SHA-3?

No. SHA-256 is part of SHA-2 (Merkle-Damgård construction). SHA-3 uses the Keccak sponge construction and produces different digests.

Is my file uploaded to your server?

No. SHA-256 is computed entirely in your browser. Your data never leaves your device.

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