Free · Fast · Privacy-first

HTML Formatter: VS Code Alternative Online

VS Code earned its place as the default editor for web developers, but it isn't always available when an HTML formatting task lands in front of you.

⚡

Same formatting quality as VS Code's built-in HTML formatter

🔒

No VS Code installation or extensions required

✨

Works on any device with a browser

⚡

Free with no account needed

Cost: Free forever
Sign-up: Not required
Processing: In your browser
Privacy: Files stay local

FreeNo signupWhite-label

Add this HTML Formatter to your website

Drop the HTML Formatter into any page — blog post, product docs, intranet, school portal — with a single line of HTML. Your visitors get the full tool, processed entirely in their browser. No backend, no uploads, no signup.

Files stay 100% in the visitor's browser
Responsive — adapts to any container width
Free forever, no API key needed

Embed code

<iframe
  src="https://www.fixtools.io/html/html-formatter?embed=1"
  width="100%"
  height="780"
  frameborder="0"
  style="border:0;border-radius:16px;max-width:900px;"
  title="HTML Formatter by FixTools"
  loading="lazy"
  allow="clipboard-write"
></iframe>

<iframe
  src="https://www.fixtools.io/html/html-formatter?embed=1"
  width="100%"
  height="780"
  frameborder="0"
  style="border:0;border-radius:16px;max-width:900px;"
  title="HTML Formatter by FixTools"
  loading="lazy"
  allow="clipboard-write"
></iframe>

Attribution-friendly: a small "Powered by FixTools" link appears in the embed footer.

When You Need HTML Formatting Without Your Editor

The decision to reach for VS Code for a small HTML task often feels automatic, but it carries hidden cost. Launching the editor, waiting for it to restore the previous workspace, opening a scratch file, pasting the content, running Format Document, copying the result, and discarding the scratch file is a workflow that adds up across the day. When the underlying goal is simply to produce a readable version of some markup, a browser tab that already has a formatter loaded is faster every time. The benefit is largest on days where you bounce between contexts, switch between machines, or work through PRs on devices that were never intended to run a full IDE. A web formatter sits at the same address regardless of what device you opened it on, which is a kind of portability that local tools cannot match.

VS Code formats HTML using the js-beautify library by default, which produces the canonical clean output that most front-end teams have agreed to live with. FixTools targets the same end result: block elements broken onto their own lines, inline elements kept inside the surrounding text flow, void elements such as br and img written without spurious closing tags, and indentation applied uniformly at every nesting depth. For the HTML you typically encounter in component templates, marketing pages, email layouts, and CMS exports, the output from the two paths is interchangeable. The places where they differ tend to be deep edge cases involving exotic template syntax, custom attribute wrapping rules, or invalid input where each tool has to make a different guess about how to recover.

There is also a quieter benefit to using a tool that runs independently from your editor: the formatter cannot have its behavior changed by an extension you forgot you installed three years ago. When VS Code suddenly starts inserting attributes on new lines, or stops respecting your indent width, the cause is almost always an extension that registered itself as a formatter and started winning the priority race. A browser-based formatter has no extension surface to fail in that way. If FixTools formats your HTML the same way today that it did last month, it will keep doing so tomorrow, which is exactly what you want from a utility you rely on to produce consistent output across thousands of small tasks.

The deeper point is that formatting belongs to the file, not to the editor. Once you accept that any editor or web tool that respects the same conventions is interchangeable, you stop thinking about which tool to use and start thinking about whether the output meets the standard. FixTools fits cleanly into that mental model. It is one of several interchangeable ways to apply the same rules, and the right one to use in any given moment is the one that gets you to a formatted result with the least ceremony. For thousands of developers each day, that is a browser tab rather than a freshly launched editor instance.

VS Code HTML Formatting Docs js-beautify HTML formatter

How to use this tool

💡

Paste your HTML and click Format. The output matches the style you would get from running Format Document in VS Code, with consistent indentation and clean line breaks.

How It Works

Step-by-step guide to html formatter: vs code alternative online:

1
Open FixTools in your browser
Navigate to the HTML Formatter on FixTools in any browser on any device. No download, no install, no configuration. The page is ready to format the moment it finishes loading.
2
Paste your HTML
Paste the HTML you want to format into the input panel. The panel accepts any size from a single tag fragment to a complete document with doctype, head, and body.
3
Click Format
Click Format to produce VS Code-equivalent output with consistent indentation. The result appears in the output panel within milliseconds, ready for inspection or copying.
4
Copy the formatted HTML
Copy the output and use it in your editor, commit it to your repository, or share it with your team. The formatted HTML is plain text and pastes cleanly into any destination.

Real-world examples

Common situations where this approach makes a real difference:

Formatting HTML during a remote code review session

A tech lead reviewing HTML changes on a shared screen pastes the diff into FixTools to give a non-technical product manager a readable version of the proposed changes. The formatted output makes the structural intent obvious, the conversation moves quickly, and no one has to wait for an editor to load on the lead's machine.

Quick formatting on a locked-down work laptop

A developer at a regulated bank cannot install VS Code without a multi-week approval process. They keep FixTools bookmarked and format every HTML deliverable through the browser, producing output that matches the team's shared style without ever installing the editor that the rest of the team uses by default.

Formatting HTML from a mobile code review app

A senior engineer reviews a pull request from an iPad on the train home. They open FixTools in Safari, paste the diff content from the GitHub mobile interface, format it, and confirm the structure is sound before approving the PR. The whole interaction takes under a minute and required no native app beyond the browser.

Sharing formatted HTML snippets in a Slack discussion

A front-end developer formats a 40-line HTML component in FixTools and pastes the indented version into a Slack code block. Reviewers in the thread read the structure without opening any tool, and the resulting discussion focuses on the design choices rather than on decoding the markup.

When to use this guide

Use this when you need to format HTML but do not have VS Code available, including on shared machines, locked-down corporate environments, or when working on a quick snippet without opening your full editor.

Pro tips

Get better results with these expert suggestions:

Use FixTools when VS Code's formatter behaves unexpectedly

When Format Document produces unexpected output in VS Code, the cause is usually an extension overriding the built-in formatter or a workspace setting hiding behind a per-folder configuration. FixTools gives you a clean reference: paste the same HTML, format it, and compare. If the two outputs disagree, the difference is almost always traceable to a VS Code extension or a custom setting that you can then investigate and remove if it isn't serving you.

Format HTML in CI environments where editors are unavailable

CI runners are deliberately minimal: no editors, no GUI, and only the dependencies your pipeline installs. When you need to verify formatting on a CI machine, Prettier installed via npm is the right long-term answer, but for ad-hoc debugging of why a CI pipeline produced unexpected HTML, FixTools running in a browser on your laptop is the fastest way to inspect the output of any artifact the pipeline uploads.

Use FixTools on a locked-down corporate machine

Many regulated industries lock down developer machines so that no software outside an approved list can be installed. VS Code may or may not be on that list, and extensions almost never are. FixTools sidesteps the entire approval process by running as a regular web page. If your browser can reach the public internet, you have access to the formatter, with no IT ticket required and no precedent set for installing unapproved software.

Validate VS Code extension output with FixTools

If you suspect a VS Code extension is silently mangling your HTML during save, run the same HTML through FixTools without any extension layer. The clean reference output makes it straightforward to identify which transformations the extension is applying that you didn't ask for, and to decide whether those transformations are desirable or whether the extension should be disabled for HTML files.

Match VS Code defaults by using 2-space indentation

VS Code's default HTML indentation is 2 spaces. Select 2-space in FixTools to produce output identical to what VS Code generates with default settings.

Use FixTools on mobile for quick reviews

When reviewing pull requests on a tablet or phone, paste the changed HTML into FixTools to format it for easier reading without needing a full IDE.

Share the formatted output instead of raw HTML in code reviews

When leaving code review comments on HTML, paste the relevant section into FixTools, format it, and share the formatted version. Reviewers will understand context faster.

FAQ

Frequently asked questions

For the HTML patterns developers encounter day to day, the two formatters produce interchangeable output. Both use parser-driven approaches that understand the HTML5 content model and both apply the same conventions that the broader web community has converged on: two-space indentation by default, block elements on their own lines, inline elements preserved inside their surrounding text flow, and void elements written without unnecessary closing tags. Differences only appear in unusual edge cases involving template syntax, custom attribute wrapping rules, or recovery from invalid input, and those differences are almost always small and inconsequential.

The honest answer is convenience for the specific task. Launching VS Code, restoring a workspace, opening a scratch file, formatting it, and discarding it is more steps than pasting into a browser tab that is already loaded. For developers on shared machines, locked-down corporate environments, mobile devices, or Chromebooks where VS Code may not even be installable, the convenience compounds. And for occasional HTML formatting tasks, the browser tab simply matches the size of the job, which is the kind of fit that wins out over fully-featured tools when the underlying task is genuinely small.

Yes, and this is one of the reasons a web-based formatter exists in the first place. FixTools runs entirely in the browser using only standard web APIs, which means it works on any device where a modern browser can run. Chromebooks, iPads, Android tablets, mobile phones, and even devices like Steam Deck or Raspberry Pi handhelds all open the tool successfully. The interface adapts to the screen size and the formatting itself runs in the browser's JavaScript engine, which is present and capable on all of these platforms.

Yes, for the standard HTML patterns that make up the bulk of front-end work. Both VS Code and FixTools use parser-based approaches, which means they construct an internal tree representation of the HTML before deciding how to emit it. This tree-based approach is fundamentally more reliable than regular-expression-based formatting and produces the same output regardless of which tool is doing the parsing. The areas where VS Code offers more control are mainly around configuration: VS Code exposes options for attribute wrapping that FixTools does not, which matters only if your team has decided to enforce a specific attribute layout that differs from the default.

FixTools matches the VS Code defaults out of the box: two spaces per indentation level, no automatic attribute wrapping, inline elements preserved inside text flow, void elements written without closing tags, and the content of script and style tags preserved without any modification. If you have customized your VS Code formatter settings, for example to use four-space indentation or to force attributes onto their own lines, your VS Code output will differ from FixTools. Switching FixTools to four-space indentation closes the indent gap, but the attribute layout difference will remain because that level of configuration is not exposed in the FixTools interface.

It needs an internet connection for the initial page load, but after that the formatter runs entirely in your browser's JavaScript environment and no further network requests are made for formatting tasks. This means you can load the page once at the start of a flight, in a coffee shop, or before going somewhere with patchy connectivity, and continue formatting HTML for as long as the tab stays open. If you need a tool that works fully offline from a fresh state with no internet at all, a locally installed formatter such as Prettier is the right choice, but for most ad hoc needs the load-once-then-offline model that FixTools provides is sufficient.

No, and it isn't designed to. FixTools is a formatter, not an editor. It does not provide syntax highlighting beyond what the browser renders in its textarea, has no autocomplete, no linting integration, no project tree, no file management, no git integration, and no debugger. The intended use is as a focused utility for a single task: produce a clean version of some HTML. For editing HTML over the course of a workday, an editor such as VS Code remains the right tool. FixTools sits alongside it, taking on the specific responsibility of formatting in contexts where opening the full editor is overkill.

The built-in HTML language support that ships with VS Code already produces output that closely matches FixTools because both target the same conventions. If you want additional configuration knobs, the Prettier VS Code extension provides a richer set of formatting options and works on dozens of file types beyond HTML. For developers who have decided to standardize on Prettier across their entire toolchain, the Prettier extension is the natural choice inside VS Code, and FixTools serves as the browser-based equivalent for moments when you are away from your configured editor.

Partially. The formatter understands HTML tags and applies indentation based on the HTML element tree. Template syntax inside the HTML, such as Handlebars expressions, Jinja blocks, ERB tags, or PHP short tags, is generally preserved as text content and placed at the appropriate indentation level for its surrounding HTML context. Where template logic deeply controls the HTML structure, for example a Jinja for-loop that opens an HTML element on one iteration and closes it on another, the formatter may misjudge nesting depth. For pure HTML containing only inline template expressions, the output is reliable; for HTML-with-control-flow templates, review the output carefully.

You don't need to do anything special. Formatted HTML is plain text, and pasting it into a VS Code editor preserves the indentation exactly. If your teammates have a formatter configured to run on save and it uses different settings (for example four-space indentation when you used two), it will reformat the file on the next save. As long as your team has agreed on a single indentation style and you select that style in FixTools, the handoff is seamless and your teammates will see no difference between code you formatted in the browser and code they would have formatted in VS Code themselves.