Code beautifier

Client

Pretty-print HTML, CSS, JavaScript, XML, and JSON for reading and diffs. To shrink payloads, use Compress & minify.

About Code beautifier

Pretty-print HTML, CSS, JavaScript, XML, and JSON in the browser—readable formatting; pair with Compress for minify. The interactive transform on this page runs in your browser tab—Toolcore does not need your paste for the core operation described above.

How to use this page

Paste or type in the main workspace, run the primary action from the toolbar, then copy or download the result. Use Load example when the page offers it, or URL prefill (?q= / ?qb=) so agents and tickets open the same input.

Source

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Pretty-print code for reading and diffs. For shrinking payloads, use Compress & minify. HTML/CSS formatters here are best-effort, not full Prettier.

Output

Nearby workflows on Toolcore

  • Compress & minify — HTML, JS, CSS, XML, SQL, JSON minify; batch JPEG/WebP image compression. for the next text or markup step in your edit loop.
  • XML formatter — Pretty-print, minify, and validate well-formed XML in the browser—no XSD; pair with JSON ↔ XML for conversion. for the next text or markup step in your edit loop.
  • JSON formatter — JSON format online: pretty-print, minify, validate, escape, download . for the next text or markup step in your edit loop.
  • HTML to text — Strip tags and extract visible plain text from HTML in the browser—drops script/style; optional whitespace collapse. for the next text or markup step in your edit loop.

Common use cases

  • Make minified API responses or build artifacts readable before debugging.
  • Format HTML/CSS/JS snippets for documentation or pull request descriptions.
  • Pretty-print XML configs and JSON payloads next to your editor workflow.

Common mistakes to avoid

  • Expecting Prettier-level HTML/CSS

    HTML and CSS formatters here are best-effort indenters. Use dedicated IDE formatters for strict style rules.

  • Beautifying secrets

    Formatted output is easier to leak in screenshots. Redact tokens before sharing.

  • Confusing beautify with minify

    This page expands whitespace for readability. Use Compress & minify to shrink payloads.

FAQ

Does beautify change JavaScript behavior?

JavaScript uses terser in beautify-only mode (no compression). Always re-test critical scripts after formatting.

Where is SQL formatting?

Use the SQL formatter tool for dialect-aware SQL layout; this page focuses on web and data formats.

Is source uploaded?

No. Formatting runs locally in your browser.

More tools

Related utilities you can open in another tab—mostly client-side.