Basic Usage

Basic Usage #

Note: There is a potential memory leak problem with this server and remains unsolved, we recommend using Docker to mitigate this problem, refer to Docker. Related discussion:

Download or build the binary #

Download the webp-server-go from release page.

Install dependencies #

If you are using version after 0.6.0 #

Install libvips on your machine, more info here

Run brew install vips pkg-config
Run apt install libvips-dev

If you are using version before 0.6.0 #

If you’d like to run binary directly on your machine, you need to install libaom:

Without this library, you may encounter error like this: cannot open shared object file: No such file or directory

brew install aom && export CPATH=/opt/homebrew/opt/aom/include/;LIBRARY_PATH=/opt/homebrew/opt/aom/lib/, more references can be found at 在M1 Mac下开发WebP Server Go | 土豆不好吃.
Run apt install libaom-dev
Run yum install libaom-devel

If you don’t like to hassle around with your system, so do us, why not have a try using Docker? » Docker | WebP Server Documentation

Dump config file #

./webp-server -dump-config > config.json

The default config.json may look like this.

  "HOST": "",
  "PORT": "3333",
  "QUALITY": "80",
  "IMG_PATH": "/path/to/pics",
  "EXHAUST_PATH": "/path/to/exhaust",
  "ALLOWED_TYPES": ["jpg","png","jpeg","bmp"],
  "ENABLE_AVIF": false,

ENABLE_AVIF means AVIF support, it’s disabled by default as converting images to AVIF is CPU consuming.

ENABLE_EXTRA_PARAMS means whether to enable Extra Parameters, basically it allows you to do some transform on images like, you can find more info on Extra Parameters page.

Config Example #

In the following example, the image path and website URL.

Image Path Website Path

The config.json should be like:


EXHAUST_PATH is cache folder for output webp images, with EXHAUST_PATH set to /var/cache/webp in the example above, your webp image will be saved at /var/cache/webp/pics/tsuki.jpg.1582558990.webp.

If you’d like to use a remote backend(such as external Nginx served static site, Aliyun OSS or Tencent COS), please refer to Remote Backend.

Run #

./webp-server --config=/path/to/config.json

To keep this program running, refer to Supervisor section.

Nginx Example #

We should only allow images to send to WebP Server Go, other extensions should just send the original file.

location ~* \.(?:jpg|jpeg|gif|png)$ {
    proxy_set_header X-Real-IP $remote_addr;
    proxy_hide_header X-Powered-By;
    proxy_set_header HOST $http_host;
    add_header Cache-Control 'no-store, no-cache, must-revalidate, proxy-revalidate, max-age=0';

If you use Caddy, you may refer to 优雅的让 Halo 支持 webp 图片输出.

If there is a CDN in front of your website, please refer to Use with CDN