HTML Editor

Build and preview HTML code instantly in your browser with this free online editor.Write clean code, see real-time changes, fix issues quickly, and easily copy or download your work—no setup required!

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Online HTML Editor

Build and test HTML right in your browser. This online HTML editor lets you write clean code, preview changes quickly, and share or export your work when you’re done. It’s perfect for quick edits, small page drafts, and learning HTML without setting up anything on your computer.

What this HTML editor helps you do

Create and edit HTML pages for demos, landing sections, or simple layouts.
Try new ideas fast without opening a full project.
Fix HTML issues like broken tags, messy spacing, or missing attributes.
Copy or download your output when you’re ready to use it (copy to clipboard and save as an HTML file are available).

How to use the HTML editor

Paste or type your HTML into the editor.
Edit your content (headings, text, links, images, lists, tables, etc.).
Run/preview to check how it looks.
Copy the result to your project or save it as an HTML file to keep it.
If you want, share the page with your team or post it where needed.

Useful features you’ll actually use

Quick editing with a clean workspace

Write your HTML in one place and keep things tidy. This is great when you only need to adjust a small section, like a header, a pricing box, or a footer.

Easy export

When your code looks right, you can copy the output or download it as an HTML file. NasSeoTools

Great for learning and practice

If you’re learning HTML, this is a simple way to try tags and see what they do—no installs, no extra steps, no confusing setup.

Simple HTML basics

A proper HTML page structure

Every page should start with a doctype and include the main HTML layout:

<!DOCTYPE html> tells the browser it’s HTML5
<html> wraps your whole page
<head> holds the title, meta tags, and CSS links
<body> holds what people see

Common tags you’ll use daily

Headings: <h1> to <h6>
Text: <p> for paragraphs
Links: <a href="...">
Images: <img src="..." alt="...">
Buttons: <button>
Lists: <ul> / <ol> with <li> items
Tables: <table>, <tr>, <th>, <td>

Add style (CSS) the simple way.

CSS controls how your page looks. You can add CSS in two common ways:

Inside your HTML using a <style> tag in the <head>
In a separate CSS file (best for bigger work)

Good CSS tip: keep styles small and readable while testing. Once the layout is final, you can move it into your main project stylesheet.

Make it interactive with JavaScript.

JavaScript makes pages interactive (like buttons that open a menu, form validation, sliders, and more). You can:

Write JS inside <script> tags
Or link to a script file using src

When testing, start small: change text, show/hide a section, or add a click action.

When this tool is most helpful

You want to draft a quick webpage section
You need to check the HTML before adding it to WordPress
You’re making an email template layout
You want to teach or learn HTML with real examples
You’re debugging a layout and need a fast test space