Compression Streams API
Baseline
2023
*
Newly available
Since May 2023, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.
* Some parts of this feature may have varying levels of support.
Note: This feature is available in Web Workers.
The Compression 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's Response can be used to convert streams to:
ArrayBufferBlobUint8ArrayString- 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
| Specification |
|---|
| Compression # compression-stream |