Last Updated: 3/9/2026

Compress Middleware

This middleware compresses the response body, according to Accept-Encoding request header.

::: info Note: On Cloudflare Workers and Deno Deploy, the response body will be compressed automatically, so there is no need to use this middleware. :::

Import

import { Hono } from 'hono'
import { compress } from 'hono/compress'

Usage

const app = new Hono()
 
app.use(compress())

Options

encoding: 'gzip' | 'deflate'

The compression scheme to allow for response compression. Either gzip or deflate. If not defined, both are allowed and will be used based on the Accept-Encoding header. gzip is prioritized if this option is not provided and the client provides both in the Accept-Encoding header.

threshold: number

The minimum size in bytes to compress. Defaults to 1024 bytes.