HTML Obfuscator by ObfuscatorJS Seven

Turn any HTML page into a protected injectable script

HTML Obfuscator converts complete documents or fragments — markup, inline CSS and JavaScript — into a single secure script, processed through a dedicated obfuscation engine with a custom bytecode VM, so your source stays unreadable while your page keeps working exactly as before.

Full documents & fragments supported Free daily obfuscations included Secure sign-in, no setup
page.html
<h1>Welcome</h1>
<script>
  initApp();
</script>
obfuscate
protected.html
<!DOCTYPE html>
<html>
<head><meta charset="UTF-8"></head>
<body>
<script>(function(_0x3a){...})();</script>
</body>
</html>
Core engine

A custom bytecode VM, not just renamed variables

Beyond identifier renaming and string encryption, HTML Obfuscator can route your logic through a dedicated bytecode virtual machine — compiling JavaScript into a custom instruction set that runs inside an interpreter embedded in the output. The original control flow never appears in the final script.

Control-flow flattening breaks up linear logic before compilation
Encrypted, split and shuffled string pools feed the VM at runtime
Optional self-defense and console-disabling harden the output further
Bytecode VM pass
rename encrypt flatten

Everything in one pipeline

Tune each transform independently, or run them all together for maximum protection.

HTML, CSS & JS in one pass

Paste a full page or a fragment — markup, inline styles and scripts are merged and obfuscated together into one injectable script.

String encryption

Strings are encrypted, split into chunks, shuffled and index-shifted so static analysis can't recover them.

Bytecode VM pass

Compiles chosen logic into a custom instruction set executed by an embedded interpreter, hiding the original control flow.

Self-defense & anti-debug

Optional self-defense freezes or corrupts tampered output, and console disabling blocks casual inspection.

Dead code & flattening

Injected dead code and control-flow flattening make the output harder to read even before encryption is applied.

Domain lock & expiration

Restrict obfuscated output to approved domains and set an expiration date — violations freeze or corrupt the page.

How it works

Three steps, from a plain HTML page to a protected injectable script.

  1. Paste your HTML

    Drop in a complete document or a fragment — the tool auto-detects which one it is.

  2. Tune the pipeline

    Pick the transforms you need: renaming, string encryption, the VM pass, licensing and more.

  3. Get your HTML file

    Copy or download a single HTML file with the protected script embedded, that renders identically to the original page.

Free to start, more when you need it

Every account gets daily obfuscations at no cost; upgrade for higher limits.

Free

$0
  • 2 obfuscations per day
  • Full HTML/CSS/JS pipeline
  • Sign in with Google

Premium

30-day license
  • 40 obfuscations per day
  • Ads disabled while active
  • Everything in Free

FAQ

Does the output still work the same?

Yes — the obfuscated script renders and behaves identically to the original page; only the source becomes unreadable.

What if I reach my daily limit?

Free accounts get 2 obfuscations per day, resetting at midnight UTC. Premium raises that to 40 per day for 30 days.

Can I protect a page for specific domains only?

Yes — enable domain lock to restrict the protected page to approved domains, with an optional expiration date.

Do I need to install anything?

No — sign in with Google and start obfuscating directly from the app in your browser.

Ready to protect your HTML?

Free to try — sign in with Google and obfuscate your first page in seconds.

Obfuscate HTML