Code Beautifier for HTML, CSS & JavaScript
Beautify and format messy or minified HTML, CSS, JavaScript and TypeScript online. Fix indentation in one click. Free and no sign-up; formats in your browser (Java via our server).
About this tool
Paste tangled HTML, CSS, JavaScript, or TypeScript and get it back properly indented and consistently formatted. Developers use it to make minified bundles readable again, tame inherited legacy files, and normalize formatting before a code review turns into an argument about whitespace.
How to Beautify Code
- 1
Paste your code — minified output, a copied snippet, or a messy file — and the language is handled according to its own formatting conventions.
- 2
Run the beautifier: indentation is rebuilt, statements are broken onto sensible lines, and nesting becomes visually obvious.
- 3
Copy the formatted result back into your editor, or read it in place when you only needed to understand what the code does.
Why Beautify Code with Wrklyst
- Proprietary Code Stays Proprietary
- HTML, CSS, JavaScript, TypeScript and the other web languages are formatted in your browser tab, so that code is never posted anywhere just to be indented. Java is the exception: it's formatted on our server, which returns the result without storing it.
- Readable in One Step
- A minified 2,000-line bundle becomes navigable instantly, without configuring a formatter or setting up a project.
- No Editor Required
- Useful precisely when you're not at your dev machine — reviewing code from a browser, a tablet, or someone else's laptop.
Formatting Workflow Tips
- Beautify third-party snippets before reading them — comprehension speed doubles when structure is visible.
- Debugging a site's minified JS? Beautify it here, then use your browser's pretty-print for breakpoints.
- Format before diffing two versions of a file; formatting noise otherwise drowns real changes.
- Consistent team formatting belongs in a pre-commit hook — use this for everything outside the repo.
Frequently asked questions
Which languages can it format?
HTML, CSS, JavaScript, and TypeScript are the core set, covering the code most often encountered in minified or messy form on the web. Each is formatted by its own rules — tag nesting for HTML, brace and statement structure for JS/TS, selector blocks for CSS.
Can it un-minify production JavaScript?
It restores structure — line breaks, indentation, readable nesting — which is usually enough to trace logic through a minified file. What it can't restore are the original variable names that minification shortened to single letters; those are gone. For debugging, structure recovery is typically the 80% that matters.
Will beautifying change how my code runs?
No — formatting only touches whitespace and line structure, which these languages ignore at runtime. The output is functionally identical to the input. The one caveat: broken code stays broken; a beautifier organizes syntax but doesn't repair it, though the clearer layout often reveals where the bug hides.
How is this different from Prettier in my editor?
Same category of tool, different context. Editor formatters excel inside a configured project; this excels everywhere else — code from an email, a production site's bundle, a Stack Overflow answer, or a machine without your toolchain. No install, no config file, no project needed.