Downloads · desktop project workflow

Download JavaScript Obfuscator

WinUI 3 can protect plain ES5 .js files offline with Local Standard. Modern syntax, stronger presets, Runtime Defense, reports, and embedded HTML/PHP/ASP/ASPX/JSP workflows send selected JavaScript to the hosted service.

Download Windows Forms App Which App Should I Pick? Security Evidence

Obfuscating JavaScript files one by one can be time consuming. The desktop app lets you protect whole projects in just a few clicks.

Choose A Download

Pick the desktop path that matches the job.

The browser tool is best for quick validation. WinUI 3 offers offline basic ES5 .js protection. Use hosted mode for modern JavaScript, stronger presets, reports, Runtime Defense, or mixed-file projects.

Recommended

Windows Forms

Smallest download, broadest Windows compatibility, and the fastest way to manage and protect folders through the hosted service.

Review Windows Forms ›

Modern UI

WinUI 3

Use the newer interface on Windows 10+ for offline basic ES5 protection or hosted Standard, Balanced, and Maximum presets.

Review WinUI 3 ›

Automation

Integration Package

Advanced teams can connect protection to release jobs after the desktop or online workflow proves the settings.

Review integrations ›

Try Online Obfuscator Compare Plans Review Security Evidence

JavaScript Obfuscator for Windows — Windows Forms

Recommended Most Compatible

Lightweight desktop client for protecting JavaScript projects through the hosted service. It is small, fast to launch, and works on older Windows versions.

Batch processing and embedded JavaScript support
Same protection engine as the modern Windows app
Smaller download (~190 KB)
Requires .NET Framework 4.x (already installed on most Windows)
Runs on Windows 7 SP1 and later (32 or 64-bit)

Download ›

~190 KB · .zip

JavaScript Obfuscator for Windows — v3.2.0 (WinUI 3)

New Maximum Protection

Modern Windows app with offline Local Standard for basic ES5 .js identifier protection, plus hosted Standard, Balanced, and Maximum choices. Self-contained — no separate .NET install required. Requires Windows 10 build 17763 (October 2018 Update) or later, 64-bit.

Local Standard: offline, no credentials, basic ES5 .js identifier protection
Hosted Standard / Balanced / Maximum protection presets for modern syntax and advanced options
Modern interface for choosing protection strength
Hosted Runtime Defense: Debug Protection (anti-debugger), Domain Lock, Date Lock
Clear success messages after protection completes
Self-contained — no .NET install required
Windows 10 build 17763 or later (64-bit)

Download ›

~62 MB · .zip

Advanced Integration Package

Advanced Optional

This package is for teams that want to connect JavaScript Obfuscator to an existing release process. Most end users should download one of the Windows desktop apps above.

Optional advanced download for release automation
Useful when protection must be part of an existing release process
Desktop app remains the recommended download for most users
Choose the tarball for package install or the zip for direct distribution

Docs: Advanced integration guide

Download .tgz › Download .zip

Version 0.2.0 · includes verified examples and release checks

Runtime Defense Event Forwarder

Customer-operated Node collector for Slack, Discord, Splunk HEC, Elasticsearch, and HMAC-signed webhooks. Includes body/header token authentication, token stripping, a 256 KB intake limit, and bounded retries.

Version 0.2.0 · Node 18+ · forwarding software, not staffed monitoring

Download .tgz › Download .zip

C# Integration Guidance

Use the maintained client contract and keep API credentials in server-side configuration. The retired legacy .NET 2.0 sample is no longer recommended.

Open client guidance ›

Browser API Safety Note

Do not put API credentials in browser JavaScript. Use a server-side integration or the maintained release package instead.

Open maintained integration ›

Recommended next steps

Use the online obfuscator to test a small sample first.
Download the Windows Forms app if you want the smallest and most compatible desktop version.
Download the modern Windows app if you prefer a newer interface and use Windows 10 or later.
Use the advanced integration downloads only when your team specifically needs them.
For procurement or security review, open the Security Evidence hub to review desktop source handling, runtime monitoring, payment-page evidence, and VM proof paths.
Need a smaller download or want to run on older Windows (7 SP1+)? The Windows Forms build (~190 KB) runs the same core obfuscation engine and requires only .NET Framework 4.x.