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Fast and simple HEIC/HEIF to JPEG converter for Node.js. Native performance, zero runtime dependencies. Built with node-api.

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Install

npm install heif2jpeg
Prebuilt binaries are provided for:
PlatformArchitecture
macOSx64, arm64
Linux (glibc)x64, arm64
Linux (musl)x64, arm64
Windowsx64, arm64
Works with Node.js, Bun, and Deno.

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Usage

const { heifToJpeg } = require("heif2jpeg");
const fs = require("fs");

const heic = fs.readFileSync("photo.heic");
const jpeg = await heifToJpeg(heic, { quality: 85 });
fs.writeFileSync("photo.jpg", jpeg);

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API

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heifToJpeg(input, options?)

Convert a HEIF/HEIC buffer to JPEG.
  • input Buffer: HEIF/HEIC file contents
  • options.quality number: JPEG quality, 1-100 (default: 85)
  • Returns Promise<Buffer>: JPEG file contents

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How it works

All processing runs on the libuv thread pool - the main thread is never blocked.
  1. libheif parses the HEIF container
  2. libde265 decodes the HEVC payload to raw RGB pixels
  3. jpeg-encoder (pure Rust) encodes to JPEG

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Building from source

Requires Rust, CMake, and a C/C++ compiler. 
git clone --recurse-submodules https://github.com/photon-hq/heif2jpeg.git
cd heif2jpeg
npm install
npx napi build --platform --release
npm test

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License

MIT