HTML Formatter
Indent and prettify HTML.
How do you format messy HTML online?
Docuboxer's HTML formatter takes minified or badly indented HTML and returns it with clean, hierarchical indentation — every tag at its nesting level, readable at a glance. Paste markup that arrived as one endless line — a page saved from the web, output from a page builder, a template someone emailed you — and the engine analyzes the tag structure and rebuilds a consistently indented version you can actually work with. Copy the result to the clipboard or download the clean file, ready to edit or publish. Everything runs directly in your browser: proprietary templates and client markup are never uploaded to any server, and the tool keeps working offline once the page has loaded. It's the natural companion to a minifier — one makes HTML small for production, this one makes it readable for humans again. Free, no signup, no size limits beyond your device's memory.
How to use HTML Formatter
- Paste your minified or badly indented HTML into the formatter's input panel.
- The engine analyzes the tag structure and automatically generates a version with correct hierarchical indentation.
- Copy the formatted HTML to the clipboard or download the clean file, ready to edit or publish.
Common use cases
Untangle HTML from visual page builders
Page builders like Elementor, Wix or Webflow generate extremely messy HTML. Format it to understand its structure, strip redundant elements and optimize the code.
Prepare templates for review and maintenance
Turn HTML templates received from third parties or downloaded from the web into well-structured, readable code your team can maintain, modify and document.
Read minified production markup
Beautify the single-line HTML you grabbed from view-source or a production bundle so you can find the element or attribute you're hunting for.
Clean up email template HTML
Email HTML is notoriously dense with nested tables. Indent it properly before attempting edits, so the structure stops being guesswork.
Format proprietary markup privately
Client templates and internal pages are formatted entirely in your browser — the code is never uploaded to any server.
Frequently asked questions
How do I format HTML code online?
Paste the HTML into the input panel and the formatter returns it with hierarchical indentation instantly. Copy or download the result — free, no signup, and processed locally in your browser.
Does the formatter fix unclosed HTML tags?
The formatter indents based on the existing structure; if there are unclosed tags, the indentation may reflect that inconsistency. We recommend running the HTML through a W3C validator after formatting to catch structural errors.
Can I configure the indentation size?
The formatter applies a consistent, readable indentation by default. If you need a specific style, a quick find-and-replace in your editor after copying the result adjusts the spacing.
Does formatting change how the page renders?
In almost all cases, no — indentation and line breaks don't affect rendering. The rare exception is whitespace-sensitive content like text inside pre tags, so give formatted output a quick visual check.
What's the difference between formatting and minifying HTML?
They are opposite directions of the same trade-off: formatting adds indentation so humans can read the markup; minifying strips it so browsers download fewer bytes. Format to work on code, minify to ship it.
Is my HTML uploaded to a server?
No. Formatting runs entirely in your browser's memory — no server, no logs, no retention — and keeps working offline once the page has loaded.