What Eazfuscator.NET is
Eazfuscator.NET is a mature commercial .NET obfuscator and optimizer from Gapotchenko, with deep Visual Studio and MSBuild integration — obfuscation runs as part of your normal build.
Its headline protection is code virtualization: eligible methods are turned into bytecode for an embedded interpreter, which is a genuinely stronger layer than plain renaming.
It runs locally and is licensed commercially. We are the opposite trade-off: nothing to install, a free tier, and a result on your assembly in about a minute.
Eazfuscator.NET pricing
Eazfuscator.NET: Commercial — subscription or perpetual licensing, some tiers by quote (checked Sep 2026); confirm current pricing with Gapotchenko.
FreeObfuscator: free to use with no account. An optional Pro plan adds larger files, batch obfuscation, string encryption, control-flow obfuscation and an HTTP API for CI/CD.
Capabilities side by side
| Capability | Eazfuscator.NET | FreeObfuscator |
|---|---|---|
| Symbol renaming | Yes | Yes |
| String encryption Ours: Pro | Yes | Paid tier |
| Control-flow obfuscation Ours: Pro | Partial | Paid tier |
| Method virtualization Ours: Pro, marked methods | Yes | Paid tier |
| Visual Studio / MSBuild integration | Yes | No |
| Runs locally We process server-side | Yes | No |
| Free tier | No | Yes |
| Zero configuration | No | Yes |
| HTTP API for CI Pro plan | No | Paid tier |
Where Eazfuscator.NET is strong
- Tight Visual Studio / MSBuild integration — obfuscation is part of the build.
- Code virtualization, an established and effective protection layer.
- Includes an optimizer alongside obfuscation.
- Runs locally — nothing leaves your network.
- Long track record on real commercial software.
Where it costs you
- Commercial licence (subscription or perpetual), where we have a free tier.
- Install and a build-pipeline step to set up before you see a result.
- No in-browser way to try it on your assembly first.
- Local-only — no hosted HTTP API to call from arbitrary CI.
Choosing between them
Choose Eazfuscator.NET if
- You want obfuscation wired permanently into Visual Studio and MSBuild.
- You want code virtualization applied as part of every build.
- Your code cannot leave your network.
- You are already committed to a commercial, build-integrated tool.
Choose FreeObfuscator if
- You want to protect an assembly once, in the browser, with no install.
- You want a free renaming pass now, with Pro protection layers available if you need them.
- You would rather try it on your file before committing to a licence.
- You do not want an obfuscation step in your build pipeline.
The verdict
Eazfuscator.NET is the more established, deeper tool — virtualization plus tight build integration is a real advantage, and if you want that we are not a full substitute. The gap is narrower than it used to be: on Pro we now offer string encryption, control-flow obfuscation and method virtualization. If build integration and a long track record matter most, use Eazfuscator; if zero friction and a free tier matter most, start here.
Worth knowing before you decide: what obfuscation actually protects against sets realistic expectations about how far any of these tools go.