snappy

July 15, 2025 · View on GitHub

!!! For snappy@6.x and below, please go to node-snappy.

More background about the 6-7 changes, please read this, Thanks @kesla .

🚀 Help me to become a full-time open-source developer by sponsoring me on Github

Fastest Snappy compression library in Node.js, powered by napi-rs and rust-snappy.

For small size data, snappyjs is faster, and it support browser. But it doesn't have async API, which is important for Node.js program.

Install this package

yarn add snappy

Support matrix

	node12	node14	node16	node18	node20	node22
Windows x64	✓	✓	✓	✓	✓	✓
Windows x32	✓	✓	✓	✓	✓	✓
Windows arm64	✓	✓	✓	✓	✓	✓
macOS x64	✓	✓	✓	✓	✓	✓
macOS arm64	✓	✓	✓	✓	✓	✓
Linux x64 gnu	✓	✓	✓	✓	✓	✓
Linux x64 musl	✓	✓	✓	✓	✓	✓
Linux arm gnu	✓	✓	✓	✓	✓	✓
Linux arm64 gnu	✓	✓	✓	✓	✓	✓
Linux arm64 musl	✓	✓	✓	✓	✓	✓
Linux riscv64	✓	✓	✓	✓	✓	✓
Linux s390x	✓	✓	✓	✓	✓	✓
Linux powerpc64le	✓	✓	✓	✓	✓	✓
OpenHarmony arm64	✓	✓	✓	✓	✓	✓
Android arm64	✓	✓	✓	✓	✓	✓
Android armv7	✓	✓	✓	✓	✓	✓
Android x86	✓	✓	✓	✓	✓	✓
Android x64	✓	✓	✓	✓	✓	✓
FreeBSD x64	✓	✓	✓	✓	✓	✓
WebAssembly				✓	✓	✓

API

export function compressSync(input: Buffer | string | ArrayBuffer | Uint8Array): Buffer
export function compress(input: Buffer | string | ArrayBuffer | Uint8Array): Promise<Buffer>
export function uncompressSync(compressed: Buffer): Buffer
export function uncompress(compressed: Buffer): Promise<Buffer>

Performance

Hardware

OS: Windows 11 x86_64
Host: Micro-Star International Co., Ltd. MS-7C35
Kernel: 10.0.22000
Terminal: Windows Terminal
CPU: AMD Ryzen 9 5950X (32) @ 3.400GHz
Memory: 32688MiB

Result

Running "Compress" suite...
Progress: 100%

  snappy:
    4 220 ops/s, ±0.66%   | fastest

  snappy-v6:
    2 018 ops/s, ±0.84%   | 52.18% slower

  gzip:
    233 ops/s, ±0.52%     | slowest, 94.48% slower

  deflate:
    235 ops/s, ±0.45%     | 94.43% slower

  brotli:
    7 ops/s, ±0.51%       | slowest, 99.85% slower

Finished 4 cases!
  Fastest: snappy
  Slowest: brotli

Running "Decompress" suite...
Progress: 100%

  snappy:
    8 528 ops/s, ±1.03%   | fastest

  snappy-v6:
    6 357 ops/s, ±1.76%   | 25.46% slower

  gzip:
    1 406 ops/s, ±1.80%   | slowest, 83.51% slower

  deflate:
    1 435 ops/s, ±1.88%   | 83.17% slower

  brotli:
    1 208 ops/s, ±1.50%   | slowest, 86.99% slower

Finished 4 cases!
  Fastest: snappy
  Slowest: brotli