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HTML Code Editor
Write HTML, CSS and JavaScript online with a live preview
Three files side by side, one preview that updates as you type, and your work saved in your own browser. Format it, download it, or publish it as a live website. No signup to write or download, nothing to install.
index.html markup
style.css styles
script.js behaviour
Console
Your three files are saved in this browser as you type, so a reload will not lose them. Nothing is sent anywhere until you publish. We restored your last session.
How to use this HTML code editor
- Write your markup in the index.html pane. The stylesheet and the script are already linked, so you do not need to add the link or script tags yourself.
- Add your styles and behaviour in style.css and script.js. Each pane has its own Format button that tidies indentation.
- Watch the preview underneath. It re-renders as you type, and anything your script logs or throws appears in the console below it.
- Keep the result. Download one self-contained .html file, download the three files as a .zip, or publish the page as a live website with its own address.
A real editor, not a single box to paste into
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Three real files
index.html, style.css and script.js are edited separately and stay separate when you download or publish, so what you get out is structured the way a real project is.
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Preview as you type
No Run button to remember. The preview refreshes a moment after you stop typing, and you can view it at full, tablet or phone width without leaving the page.
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Console built in
console.log, warnings, errors and uncaught exceptions from your script show up underneath the preview, so you can see what went wrong without opening browser dev tools.
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Your work survives a reload
All three panes are saved in your browser as you type and restored when you come back. A visible Clear button removes them again, which matters on a shared machine.
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Templates and libraries
Start from a landing page, a contact form, a flexbox or grid layout, or a dark mode toggle. Add Bootstrap, Tailwind, jQuery, Alpine or Chart.js with one click.
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Publish when it is ready
Turn what you wrote into a live website on its own address with an SSL certificate. The Free plan covers one website on a free subdomain.
Why use an online HTML code editor?
There is nothing to install and nothing to configure, which makes it the fastest way to try an idea. It works on a machine you do not control, such as a work laptop, a library computer or a locked-down school account, where installing a desktop editor is not an option. It is also a good way to learn: you change one line and see what it does immediately, without a build step in between.
It suits a single page well. A landing page, a portfolio, a documentation page, an event page or a coming-soon page is HTML, CSS and JavaScript, which is exactly what this editor produces. For a large website with dozens of pages, a framework and a build step, write it locally and upload the finished output instead.
Code editor or WYSIWYG editor: which do you need?
These are two different tools that are often confused. A code editor, like this one, is where you write the markup yourself and see exactly what you wrote. A WYSIWYG editor gives you a word-processor style canvas and generates the markup for you, which is useful if you do not want to write HTML at all, though the output is usually more verbose than what you would write by hand. If you searched for an HTML editor hoping to paste formatted text and get tags back, you want the second kind. If you want control over the markup, you are in the right place.
Your code never leaves your browser
The editor, the preview, the formatter and both download buttons run as JavaScript on your own machine. Nothing you type is sent to Static.app, or anywhere else, unless you choose to publish it. The preview runs inside a sandboxed frame that is deliberately cut off from the rest of the page, so code you paste in to try out cannot read anything belonging to this website.
The copy kept between visits lives in your browser's own storage, not on a server. That is worth knowing on a shared or public computer: use the Clear button when you are finished and it is removed.
Keeping your work: autosave, download and publish
There are three different ways to keep what you wrote, and they answer different questions. Autosave handles the accidental reload: your three panes come back as you left them, on this browser only. Download gives you a permanent copy on your machine, either as one self-contained .html file with the styles and script inlined, or as a .zip with the three files kept separate and linked to each other. Publish puts the page on the web at an address you can send to someone.
Autosave is per browser and per device, so it will not follow you from your laptop to your phone. If the work matters, download it or publish it.
From editor to live website
Publish packages index.html, style.css and script.js and hands them to Static.app hosting. You get a live https address with an SSL certificate included, and the page is served exactly as you wrote it, with no build step and nothing rewritten. The Free plan covers one website on a free subdomain. Connecting a domain name you own is available on the paid plans.
If you would rather host it elsewhere, use Download .zip and take the files with you. Nothing here locks your work to Static.app.
Editing on a phone or tablet
On a narrow screen the three panes become tabs, so each file gets the full width instead of a cramped third, and the preview is one tap away. Every toolbar action stays available. Being honest about it: typing code on a phone keyboard is slow, so this suits fixing a typo, changing a colour or showing someone the preview far better than writing a page from scratch.
Need something narrower? Use the HTML tester to check and debug a snippet you already have, or the HTML viewer to open and read an existing .html file.
How this HTML code editor compares
Free browser editors differ most in what happens after you stop typing: whether your work survives a reload, whether you can get the file out, and whether you can put the page online. Checked on the live pages, and the places where the others are simply better are marked as such.
| Static.app | W3Schools Tryit | CodePen | JSFiddle | Programiz | OneCompiler | |
|---|---|---|---|---|---|---|
| Use the editor with no accountCodePen 2.0 sends logged-out visitors to a login screen; its legacy editor still opens. | Yes | Yes | Legacy editor only | Yes | No account system | Yes |
| Live preview without clicking RunJSFiddle offers auto-run but reserves it for signed-in users. | Yes, as you type | No, Run button | Yes | Sign in required | Yes | Yes |
| Separate HTML, CSS and JavaScript filesProgramiz and OneCompiler go further than three files, with folders and uploads. | Yes, three files | No, one pane | Yes, 3 on the free tier | Yes | Yes, plus folders | Yes, add more |
| Your work survives a page refreshChecked by typing, reloading and looking again. OneCompiler matches us here. | Yes, saved in your browser | No | Versions is paid | Sign in required | No, resets | Yes |
| Download your code | Yes, .html or .zip | No | Yes, export .zip | Hidden when logged out | Yes | Yes |
| Share a link to the code itselfAn honest loss: CodePen and JSFiddle are better if you want to share source code for feedback. | No, publish instead | No | Yes, once saved | Yes, plus embeds | No | Save needs an account |
| Publish it as a live websiteNot a clean sweep: W3Schools Spaces and OneCompiler both publish on a free tier. The free W3Schools tier is metered by requests per month, where traffic here is unlimited. | Yes, on the Free plan | Yes, metered free tier | Paid plans only | No | No | Yes, account needed |
| Connect a domain name you ownPaid on Static.app too, and on the two competitors that offer it at all. | Yes, on paid plans | Paid plan only | Paid plans only | No | No | Not documented |
| Ads and cookie consent wallsThe partner counts are the numbers each consent dialog states about itself. Static.app carries no ads and shares nothing with ad partners, though it does show a dismissable cookie notice of its own. | No ads, one cookie notice | Ads, 1730 partners | Ads unless you pay | Ads | Ads, 690 partners | None found |
| Depth of the editor itselfAn honest loss: CodePen and JSFiddle are deeper editors than this one and we have no preprocessors. | Autocomplete, format, libraries | No line numbers | Preprocessors, deepest | Many library versions | Console, folders | Many languages |
| Community and learning materialAn honest loss: we do not compete here and are not trying to. | A tool page | Unmatched for learning | Large community | Collaboration | Course library | Wiki reference |
| Best for | Writing a page, then putting it online | Learning from examples | Front-end demos | Reproducing a bug | A scratchpad | Many languages |
Competitor behaviour was checked against the live pages while this page was written. These products change often, so treat the details as a snapshot rather than a permanent fact.
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HTML code editor FAQ
Is this HTML code editor free?
Yes. The editor is free to use with no account and no usage limits. It runs entirely in your browser, so there is nothing to install and nothing to pay for. Publishing what you write as a live website is also free on the Free plan, which includes one website on a free subdomain with an SSL certificate.
Do I need to sign up to use the online code editor?
No. You can open the page, write HTML, CSS and JavaScript, watch the live preview, format your code and download your files without creating an account. You only need an account at the point where you publish your work as a live website.
How do I save my HTML code from an online editor?
This editor saves all three files in your own browser as you type, so closing the tab or reloading the page does not lose your work. For a permanent copy, use Download .html for a single self-contained file or Download .zip for the three files as you wrote them. To put it on the web at a real address, use Publish.
Can I publish the HTML I write here as a real website?
Yes. The Publish button packages index.html, style.css and script.js and hands them to Static.app hosting, which gives you a live https address. The Free plan covers one website on a free subdomain with an SSL certificate. Connecting your own domain name is available on the paid plans.
How do I download my HTML file from an online code editor?
Use the Download .html button to get one file with your CSS and JavaScript inlined into it, which opens correctly anywhere on its own. Use Download .zip to get index.html, style.css and script.js kept as three separate files with the links between them intact.
Does my code get uploaded to a server, or does it stay in my browser?
It stays in your browser. The editor, the live preview, the formatter and both download buttons all run as JavaScript on your own machine, and nothing is sent anywhere. Your work is only transmitted if you choose to publish it as a website.
Can I edit HTML, CSS and JavaScript in the same online editor?
Yes. There are three separate panes, one for each file, and the preview combines them the way a browser would. This mirrors how a real project is laid out, so the files you download or publish are already structured properly rather than having everything crammed into one page.
How do I add CSS and JavaScript to my HTML?
In this editor you do not have to: the style.css and script.js panes are already linked from index.html, so anything you type in them applies immediately. If you are writing HTML somewhere else, link a stylesheet with a link tag in the head and a script with a script tag before the closing body tag.
Is there a free online code editor with no sign up?
This one. There is no account system in the way of the editor itself: open the page and start typing. Several alternatives ask you to log in before you can auto-run your code, save a draft or download a file, which is worth checking before you rely on them.
Can I use an online HTML editor on my phone or tablet?
Yes. On a narrow screen the panes stack into tabs for HTML, CSS, JavaScript and Preview so each one gets the full width, and every toolbar action stays reachable. Typing code on a phone keyboard is slow, so it suits small edits and viewing more than writing a page from scratch.
What is the difference between an online HTML editor and a code editor like VS Code?
An online editor needs no installation and works on any machine, including a locked-down one, which makes it good for quick experiments, learning and small fixes. A desktop editor like VS Code handles large multi-folder projects, extensions, version control and offline work, which a browser tool does not attempt.
Is an online code editor good enough to build a real website?
For a single page it is genuinely enough: a landing page, a portfolio, a documentation page or an event page is HTML, CSS and JavaScript, which is exactly what this editor produces. For a large website with many pages and a build step, write it locally and upload the finished files instead.
Can I share a link to the HTML I wrote?
Not as a code snippet. Some tools give you a URL that reopens your code in their editor, and this one does not. What it gives you instead is the option to publish the page as a live website, so the link you share is the working page itself rather than its source.
Does the online HTML editor work offline?
Partly. The page has to load once over the internet, but after that the editing, the live preview and the downloads all run locally, so a brief disconnection will not interrupt you. Publishing needs a connection, and a hard reload while offline will not load the page at all.