NitroSERP

Free HTML Minifier & Beautifier

Runs locally

Updated October 25, 2026

Collapse whitespace to minify HTML snippets or pretty-print nested markup locally in your browser with no server uploads.

How to use HTML Minifier / Beautifier

Paste your raw or minified HTML snippet into the input editor.

Click Beautify to indent nested elements for readability, or Minify to collapse whitespace between tags.

Copy the formatted HTML and test any <pre>, <code>, or inline <script> blocks before deploying.

Format or compress HTML snippets in your browser

When inspecting third-party embed codes, cleaning up CMS blocks, or preparing HTML email partials, unformatted markup is difficult to debug. Use this free HTML minifier and beautifier to indent nested tags or strip excess whitespace locally in your browser.

Beautify vs. Minify mode comparison

ModeWhat It ChangesBest Used ForCaution
Beautify (Pretty-Print)Inserts line breaks and consistent indentation across nested tagsDebugging minified CMS output, reviewing <head> meta tags, and PR diffsIncreases character count with indentation spaces
Minify (Compress)Collapses newlines and repeated spaces between tags into a compact stringEmbedding inline HTML widgets, custom CMS blocks, or lightweight templatesTest <pre>, <code>, and inline <script> blocks after minifying

Related HTML & SEO inspection tools

After formatting your HTML, inspect its links with our HTML link checker and anchor text extractor, escape special characters with the HTML entities encoder / decoder, or generate clean <head> tags with the SEO meta tag generator.

HTML Minifier / Beautifier FAQs

An HTML minifier removes unnecessary spaces, indentation tabs, and line breaks between HTML tags so the browser downloads fewer bytes over the network.

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