TheCompression Streams API provides a JavaScript API for compressing and decompressing streams of data using the gzip or deflate formats.

Built in compression means that JavaScript applications will not need to include a compression library, which makes the download size of the application smaller.

The Fetch API'sResponse can be used to convert streams to:

• ArrayBuffer
• Blob
• Uint8Array
• String
• JSON

Interfaces

CompressionStream

Compresses a stream of data.

DecompressionStream

Decompresses a stream of data.

Examples

In this example a stream is compressed using gzip compression.

const compressedReadableStream = inputReadableStream.pipeThrough(  new CompressionStream("gzip"),);

In the following example a function decompresses a blob using gzip.

async function DecompressBlob(blob) {  const ds = new DecompressionStream("gzip");  const decompressedStream = blob.stream().pipeThrough(ds);  return await new Response(decompressedStream).blob();}

Specifications

Browser compatibility