GZIP 압축 & 해제 - Base64 GZIP 인코더 온라인

// Compress text to Base64-encoded GZIP
async function compressToBase64(text) {
  const stream = new Blob([new TextEncoder().encode(text)])
    .stream()
    .pipeThrough(new CompressionStream('gzip'));
  const buf = await new Response(stream).arrayBuffer();
  let binary = '';
  new Uint8Array(buf).forEach(b => binary += String.fromCharCode(b));
  return btoa(binary);
}

// Decompress Base64-encoded GZIP to text
async function decompressFromBase64(base64) {
  const binary = atob(base64);
  const bytes = Uint8Array.from(binary, c => c.charCodeAt(0));
  const stream = new Blob([bytes])
    .stream()
    .pipeThrough(new DecompressionStream('gzip'));
  return await new Response(stream).text();
}

// Usage
const compressed = await compressToBase64('Hello, World!');
console.log(compressed);
const decompressed = await decompressFromBase64(compressed);
console.log(decompressed); // "Hello, World!"