JPKCom DB

Compiler

What the Compiler does: compile SASS/SCSS to CSS and minify or beautify HTML, JavaScript, and CSS — your starting point for the manual, examples, and tips.

Four code transformations under one roof

The Compiler bundles four tasks that come up constantly in front-end work — tasks you'd otherwise reach for a separate tool or a build setup to handle: compile SASS/SCSS to CSS, and minify or beautify (re-indent for readability) HTML, JavaScript, and CSS. Everything lives in four tabs — SASS/SCSS, HTML, JavaScript, CSS — each with an input and an output editor side by side.

You paste your code on the left (or upload a file), pick an action, and the result appears on the right — ready to copy or download as a file. No account, no installation, no server round-trip: the actual processing runs entirely in your browser.

The tool is built for anyone who needs a quick conversion without setting up a toolchain: developers double-checking an SCSS snippet from the docs or shrinking a handful of lines of JavaScript; web designers who first need to make someone else's one-line, squashed CSS readable; and everyone who wants a quick, transparent intermediate step before code goes into a project.

What the four tabs do

The four tabs are deliberately equipped differently, depending on what makes sense for each language:

  • SASS/SCSS — Compile. Turns SASS/SCSS source into finished CSS. One option controls the Output Style: Expanded (readable, indented) or Compressed (minified, single line). This is the only tab that truly compiles — the other three only format or shrink.
  • HTML — Beautify & Minify. Beautify indents HTML cleanly (options: indent size, wrap length); Minify strips whitespace between tags and, optionally, the comments.
  • JavaScript — Beautify & Minify. Beautify formats JavaScript for readability; Minify shrinks it with the well-established minifier Terser — including options like shortening variable names (mangle) and dropping console calls.
  • CSS — Beautify & Minify. Beautify indents CSS; Minify removes comments and whitespace.

Which engine sits behind which tab, and exactly what each option does, is covered in the manual.

Architecture: everything in the browser

The Compiler is a purely client-side tool. The page itself only serves the interface; all conversions are computed by JavaScript right in your browser:

  • SASS/SCSS is compiled by sass.js, a Sass engine translated to JavaScript. The compiler module is around 4 MB and is loaded only on the first compile — a short notice appears while it does.
  • JavaScript minification is handled by Terser.
  • Beautify for HTML, JavaScript, and CSS is provided by JS Beautifier.
  • Minify for HTML and CSS runs through lean, rule-based in-house routines (not a full parser) — lightweight, but with limits that the manual spells out.
  • Input and output sit in ACE editors with syntax highlighting; your input is auto-saved per tab in the browser (LocalStorage).

Because nothing is sent to a server, your code never leaves your machine — relevant when you process non-public snippets.

Try it now

→ Open the Compiler — paste your code, pick a tab, click an action. Each tab starts with a sample snippet so you can see the behavior right away.

  • Beautify — the dedicated formatting tool for JavaScript, CSS, and HTML that can additionally deobfuscate. When plain re-indentation in the Compiler isn't enough, Beautify is the specialized address.
  • Playground — an interactive HTML/CSS/JavaScript editor with live preview, ideal for testing compiled CSS in context.
  • Source Viewer — view and syntax-highlight source code for 100+ languages.
  • Color tools — generate and convert color values to drop into your SCSS or CSS.

There's more on the subpages: the manual with every tab, engine, and option, hands-on examples, and a collection of tips & tricks.