sindresorhus/gzip-size

Get the gzipped size of a string or buffer

JavaScript

173

63 commits

updated Sep 18, 2026

See the code

README

gzip-size

Get the gzipped size of a string or buffer

Install

npm install gzip-size

Usage

import {gzipSize, gzipSizeSync} from 'gzip-size';

const text = 'Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.';

console.log(text.length);
//=> 191

console.log(gzipSizeSync(text));
//=> 78

API

gzipSize(input, options?)

Returns a Promise<number> with the size.

gzipSizeSync(input, options?)

Returns the size.

input

Type: string | Buffer

options

Type: object

Any zlib option.

gzipSizeFromFile(path, options?)

Returns a Promise<number> with the size of the file.

path

Type: string

gzipSizeFromFileSync(path, options?)

Returns the size of the file.

gzipSizeStream(options?)

Returns a stream.PassThrough. The stream emits a gzip-size event and has a gzipSize property.

sindresorhus/gzip-size

Get the gzipped size of a string or buffer

JavaScript

173

63 commits

updated Sep 18, 2026

See the code

README

gzip-size

Get the gzipped size of a string or buffer

Install

npm install gzip-size

Usage

import {gzipSize, gzipSizeSync} from 'gzip-size';

const text = 'Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.';

console.log(text.length);
//=> 191

console.log(gzipSizeSync(text));
//=> 78

API

gzipSize(input, options?)

Returns a Promise<number> with the size.

gzipSizeSync(input, options?)

Returns the size.

input

Type: string | Buffer

options

Type: object

Any zlib option.

gzipSizeFromFile(path, options?)

Returns a Promise<number> with the size of the file.

path

Type: string

gzipSizeFromFileSync(path, options?)

Returns the size of the file.

gzipSizeStream(options?)

Returns a stream.PassThrough. The stream emits a gzip-size event and has a gzipSize property.

Project health

Overall

3.7/10

Maintained

0/10

Code review

3/10
OpenSSF Scorecard

Latest release

7.0.0 · Nov 23, 2021

Releases this year

0

Significant stargazers

Jayden Seric

691 followers · starred Feb 2021

Vlad Tansky

82 followers · starred Apr 2021