Is the HTML Formatter free to use?

Yes. HTML Formatter on Markvibe is 100% free with no sign-up, no credit card, and no usage limits.

Does the HTML Formatter upload my data to a server?

No. The HTML Formatter runs entirely in your browser using client-side JavaScript, so your input never leaves your device. The only exceptions are tools that explicitly need a third-party API (e.g. WHOIS, DNS, AI), which is clearly indicated.

Is the HTML Formatter safe and private?

Yes. Because processing happens locally in your browser, files, text, and other inputs are not stored on our servers. We don't require accounts and we don't track tool inputs.

Can I use HTML Formatter on mobile?

Absolutely. Every tool on Markvibe, including HTML Formatter, is fully responsive and works smoothly on iOS, Android, tablets, and desktops.

Do I need to install anything to use HTML Formatter?

No installation required. HTML Formatter is a pure web app — open the page and start using it instantly in Chrome, Firefox, Safari, Edge, or any modern browser.

What other developer tools do you offer?

Markvibe ships 184+ free tools including a full suite of developer tools. Scroll to "Related tools" below to discover more utilities in this category.

HTML Formatter — Free Online Tool

What is the HTML Formatter?

The HTML Formatter is a free online developer tools from Markvibe. Beautify HTML markup. It runs entirely in your browser — your data never gets uploaded — and works on desktop, tablet and mobile with no sign-up.

Reviewed by The Markvibe Team · Last updated 2026-06-28

Example

A worked example so you know exactly what to expect.

Input

(your input goes here)

Output

(the HTML Formatter runs in your browser and shows the result instantly)

How to use HTML Formatter

1Open the HTML Formatter on this page — it loads instantly with no sign-up.
2Paste or enter your input into the field above. You can paste, type, drag-and-drop, or upload depending on the tool.
3Set any options (format, size, mode) to match exactly what you need.
4Click the run button to run HTML Formatter in your browser.
5Review the result, then copy it to your clipboard or download the output file.