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The Compression Streams API brings native, streaming gzip and deflate to the web platform. With built‑in CompressionStream and DecompressionStream, you can compress or decompress data on the fly—no third‑party libraries required. It integrates cleanly with Fetch/Response to turn streams into ArrayBuffer, Blob, Uint8Array, String, or JSON, works in Web Workers, and is part of the 2023 Baseline. Use it to shrink uploads, store compressed data offline, and streamline real‑time pipelines while keeping bundles lean.