https://autoprefixer.github.io

Autoprefixer is a PostCSS plugin which parse your CSS and add vendor prefixes

https://autoprefixer.github.io

http://b64.io/

http://b64.io/-UPLOAD. WE OPTIMIZE, WE ENCODE.

http://css.spritegen.com/

http://css.spritegen.com/- Optimize your website using CSS Sprites! Generate CSS Sprites to speed up your website by reducing HTTP requests.

https://www.base64encode.org/

https://www.base64encode.org/- Have to deal with Base64 format? Then this site is made for you! Use the super simple online form below to decode or encode your data. If you’re interested about the inner workings of the Base64 format, just read the detailed description at the bottom of the page.

https://www.fontsquirrel.com/

https://www.fontsquirrel.com/

https://fonts.google.com/

https://fonts.google.com/

https://www.web-font-generator.com/