altrepo-hash

AltRepo Hash is a lightweight Node.js utility library for generating hashes and verifying checksums for text, bytes, and files.

Features

• Straightforward API: Easily generate hashes or verify checksums with a clean, intuitive interface.
• Zero Dependencies: Built entirely on top of Node.js's standard crypto and fs modules, ensuring a lightweight footprint with no external requirements.
• Secure Verifications: Utilizes constant-time comparisons (crypto.timingSafeEqual) to securely verify file and text hashes.
• Broad Algorithm Support: Includes built-in support for all major hashing algorithms including sha256, sha512, blake2b512, blake2s256, md5, sha1, and more.
• Memory Efficient: Safely processes large files in chunks via hashFile without loading the entire file into memory using standard readable streams.

Installation

npm install altrepo-hash

Example API

import { hashText, hashFile, verifyFileHash } from "altrepo-hash";

async function run() {
  console.log(hashText("hello", "sha256"));

  console.log(await hashFile("download.zip", "sha256"));

  console.log(
    await verifyFileHash("download.zip", "abc123...", "sha256")
  );
}

run();

Browser Version

AltRepo Hash is the JS companion to the browser-based hash tools on AltRepo.

More hash tools: https://altrepo.net/hash/