
Product
Introducing Socket Fix for Safe, Automated Dependency Upgrades
Automatically fix and test dependency updates with socket fix—a new CLI tool that turns CVE alerts into safe, automated upgrades.
The zlib npm package provides compression and decompression functionalities using the zlib library, which is a part of Node.js core. It allows you to compress and decompress data streams and buffers using various algorithms like gzip, deflate, and more.
Compression using gzip
This code demonstrates how to compress a file using gzip. It reads from 'input.txt' and writes the compressed data to 'input.txt.gz'.
const zlib = require('zlib');
const fs = require('fs');
const input = fs.createReadStream('input.txt');
const output = fs.createWriteStream('input.txt.gz');
input.pipe(zlib.createGzip()).pipe(output);
Decompression using gzip
This code demonstrates how to decompress a gzip file. It reads from 'input.txt.gz' and writes the decompressed data to 'input.txt'.
const zlib = require('zlib');
const fs = require('fs');
const input = fs.createReadStream('input.txt.gz');
const output = fs.createWriteStream('input.txt');
input.pipe(zlib.createGunzip()).pipe(output);
Compression using deflate
This code demonstrates how to compress a file using deflate. It reads from 'input.txt' and writes the compressed data to 'input.txt.deflate'.
const zlib = require('zlib');
const fs = require('fs');
const input = fs.createReadStream('input.txt');
const output = fs.createWriteStream('input.txt.deflate');
input.pipe(zlib.createDeflate()).pipe(output);
Decompression using deflate
This code demonstrates how to decompress a deflate file. It reads from 'input.txt.deflate' and writes the decompressed data to 'input.txt'.
const zlib = require('zlib');
const fs = require('fs');
const input = fs.createReadStream('input.txt.deflate');
const output = fs.createWriteStream('input.txt');
input.pipe(zlib.createInflate()).pipe(output);
Pako is a fast zlib port to JavaScript, mostly used for client-side compression and decompression. It provides similar functionalities to zlib but is designed to work in the browser as well as in Node.js.
Snappy is a fast compression and decompression library developed by Google. The node-snappy package provides Node.js bindings for Snappy, offering an alternative to zlib with a focus on speed over compression ratio.
node-zlib - Simple, synchronous deflate/inflate for node.js buffers.
Install with npm install zlib
.
var Buffer = require('buffer').Buffer;
var zlib = require('zlib');
var input = new Buffer('lorem ipsum dolor sit amet');
var compressed = zlib.deflate(input);
var output = zlib.inflate(compressed);
Note that node-zlib
is only intended for small (< 128 KB) data that you already have buffered. It is not meant for input/output streams.
Make sure you have zlib
installed. Mac OS X ships with it by default.
To obtain and build the bindings:
git clone git://github.com/kkaefer/node-zlib.git
cd node-zlib
./configure
make
You can also use npm
to download and install them:
npm install zlib
expresso is required to run unit tests.
npm install expresso
make test
node-zlib
is BSD licensed.
FAQs
Simple, synchronous deflate/inflate for buffers
The npm package zlib receives a total of 348,469 weekly downloads. As such, zlib popularity was classified as popular.
We found that zlib demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 5 open source maintainers collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Product
Automatically fix and test dependency updates with socket fix—a new CLI tool that turns CVE alerts into safe, automated upgrades.
Security News
CISA denies CVE funding issues amid backlash over a new CVE foundation formed by board members, raising concerns about transparency and program governance.
Product
We’re excited to announce a powerful new capability in Socket: historical data and enhanced analytics.