I work on Geany because it is lightweight and simple. But one future I really miss from using sophisticated and heavy code editors is prettifying the code with a keystroke. But Geany allows external scripts to run on the text in the editor through "custom commands".

So I am on the look out for CLI program that can prettify a webpage containing HTML + CSS + JS? Not just HTML or JS. Prettify the webpage if it contains either HTML or CSS or JS or all of them.

  • Run it through html-tidy + js-beautify? ( github.com/beautify-web/js-beautify )? Jul 17, 2021 at 10:48
  • @ArtemS.Tashkinov html-tidy nukes CSS. Besides I am looking for a single utility that can prettify if it's a HTML or CSS or JS.
    – Finch
    Jul 19, 2021 at 18:33
  • Sorry, haven't seen anything for that ever. Including JS/CSS in your HTML code is a bad practice anyways, so if I were you I'd split HTML files into HTML and JS/CSS and pure HTML. Jul 19, 2021 at 18:35
  • Of course @ArtemS.Tashkinov. But sometimes one needs to included a little bit of JS into the HTML.
    – Finch
    Sep 26, 2021 at 17:26

1 Answer 1


First install prettier "globally" using either npm or your Package manager.

Using npm:

npm install -g prettier

To "prettify" CSS using "custom commands" with Geany:

Config - One time only!

  1. Edit -> Format -> Send selection to -> Set custom commands
  2. Click Add
  3. Enter prettier --stdin-filepath temp.css in Command field.
  4. Enter CSS in Label
  5. Click OK.

Now every time you want to "prettify" CSS:

  1. Select the CSS text you want to prettify:
  2. Go to / pressEdit -> Format -> Send selection to -> CSS

[recommended] To "prettify" any source code file directly using prettier:

  1. npx prettier --write .
  2. Read the "Usage" section in the document for more information.

Caution: Prettifying, Beautifying or Formatting your source code files modifies them.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.