☄️ Favicon Rover

Fetch the favicon of any website.

• ⌨️ CLI tool
• 🌐 Web server
• 🛟 Fallback icons
• 🦀 Rust

Install

cargo install favicon-rover

CLI Usage

Fetch the favicon for a site using the cli tool

# Usage: favicon-rover get [OPTIONS] <URL>

favicon-rover get https://crates.io # output the crates favicon to stdout

favicon-rover get https://crates.io --out favicon.png # output to favicon.png

favicon-rover get https://crates.io --size 256 # set the size to 256px

favicon-rover get https://crates.io --type webp # set the format to webp

favicon-rover get https://crates.io -o favicons/cratesio -s 50 -t webp # all options

favicon-rover get --help # show help information

Web Server

Important

You need to enable the server feature for this command to be available

Start the web server to expose an API that will fetch favicons

# Usage: favicon-rover serve [OPTIONS]

favicon-rover serve # start with default options

favicon-rover serve --port 8080 # run on port 8080

favicon-rover serve --host 12.34.56.78 # specify a host

favicon-rover serve --origin https://example.com # only allow requests from example.com

favicon-rover serve -p 1234 --host 0.0.0.0 -o https://example1.com -o /\.example2\.com$/ # all options

favicon-rover serve --help # show help information

API

/{site url}?size={size}

site url is any valid url to a page that you want the favicon for. Must be URL encoded.

size is an integer in pixels to set the returned image. It's optional, and if not included then the best available size will be returned.

Example: http://localhost:3000/example.com?size=24

Fonts

The fallback image generation will attempt to query and load a "sans-serif" font. It will load your system fonts if available as well as any fonts in the current directory (pwd) when favicon-rover is started.

CORS

By default, any origin is allowed to make a request to this API. To lock it down, use the --origin command line options to specify any amount of origins. If an origin starts and ends with / it will be treated as a regexp. For example favicon-rover serve -o http://example1.com -o /\.example2\.com$/ will accept any request from "http://example1.com" or from a subdomain of "example2.com".

Tip

We highly recommend setting an origin so your favicon API can't be as easily abused by websites you don't control

Development

Run cargo run to test the binary. You can test the serve command with cargo run --features server -- serve.

Run cargo build to build in release mode.

Contributing

If you have any feedback or find a website that favicon rover can't correctly find the favicon for, create an issue. Contributions are welcome.

License

Created by Stevent (2023) and licensed under MIT