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HEIC → JPG in Node.js with Sharp

•5 min read•Developers

Sharp supports HEIC via libvips + libheif. Here’s the minimal working setup and code.

Install

npm install sharp

Ensure your environment has libvips with HEIF enabled (prebuilt Sharp binaries generally include this).

Code

import fs from 'node:fs/promises';
import sharp from 'sharp';

async function convertHeicToJpg(inputPath: string, outputPath: string) {
  const image = sharp(inputPath, { unlimited: true });
  await image.jpeg({ quality: 85, mozjpeg: true }).toFile(outputPath);
}

async function main() {
  await convertHeicToJpg('input.heic', 'output.jpg');
}

main().catch((err) => {
  console.error(err);
  process.exit(1);
});

Notes

  • Preserving EXIF: read with metadata() and re‑inject via withMetadata() if needed.
  • Batch: iterate folder and Promise.allSettled N‑at‑a‑time to throttle.
  • Color: prefer mozjpeg with quality 80–85% for web.

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