HTMLify is a free collection of browser-based HTML developer tools — built by a developer, for developers. Every tool on this site runs entirely in your browser. Your code is never sent to a server, never stored, and never shared. What happens in your browser stays in your browser.
Why We Built This
The story starts with a problem every web developer has faced: you're handed a minified HTML file — one endless line of angle brackets — and you need to understand what it does. Or you paste content from a CMS and end up with a mess of Word-generated markup. Or you inherit a legacy template and need to validate it before touching anything.
Most online tools at the time required you to upload your code to a server (where it could be logged), showed you ads on every interaction, or required creating an account just to paste some HTML. We built HTMLify to be the opposite of that: instant, private, free, and actually useful.
What HTMLify Offers
- HTML Beautifier — readable, properly indented code from any messy HTML
- HTML Minifier — strip whitespace and comments to reduce page size
- HTML Validator — catch structural errors before they reach production
- HTML Compare — diff two HTML files to see exactly what changed
- HTML Cleaner — remove Word paste artifacts and junk markup
- HTML Formatter, Prettifier, Compressor, Viewer — and more
Our Principles
Privacy by design. Every tool processes your code locally in JavaScript. No backend, no logging, no analytics on your code content. We don't know what HTML you paste here and we don't want to.
No account required. We believe useful tools should be available to everyone without friction. You should never have to create an account to use a text processing tool.
Honest and accurate. We write detailed, technically accurate documentation because we're developers ourselves and we know what it's like to read documentation that was clearly written by someone who'd never used the tool.
The Blog
The HTMLify Blog covers practical HTML development topics — indentation conventions, performance optimization, validation best practices, and tool comparisons. Every post is written from real experience, not recycled SEO content. If we haven't personally run into the problem we're writing about, we don't write about it.
Contact
Questions, bug reports, or feature requests? Use the Contact page. We read every message and respond to most of them.