6 free tools

Free HTML tools

Small, private utilities for the moments around publishing HTML: view a file, preview code as you write it, tidy it up, encode URLs, build link tags and embed files as data URLs. Every tool runs in your browser — nothing is uploaded.

View, preview & format HTML

Open an .html file, write HTML with a live preview, and clean up code you can't read.

Online HTML Viewer

Open an .html file or paste code and see the rendered page

HTML Preview Editor

Write HTML, CSS and JS side by side with a live preview

HTML Formatter

Re-indent minified or messy HTML so you can read it

Links, URLs & encoding

Encode text for URLs, build link tags, and turn files into data URLs.

HTML URL Encoder & Decoder

Percent-encode URLs and query strings, or HTML-escape text

HTML Link Code Generator

Build the tag for text links, buttons, email and phone

HTML & Image to Data URL

Turn a file or HTML into a data: URI you can embed anywhere

Paste HTML. Get a URL.

Code, an .html file, a ZIP or a whole folder becomes a live HTTPS URL with your own address, an optional password and a QR code. Free to start with Google sign-in; paid plans keep URLs online for good.

Convert HTML to URL