What Crypto Obfuscator for .NET is
Crypto Obfuscator for .NET (LogicNP Software) is a long-standing commercial obfuscator with a wide protection feature set: symbol renaming, string and resource encryption, method call hiding, anti-debug and anti-tamper, watermarking, assembly merging and embedding, plus optimization and error reporting.
That breadth is its point — it aims to be a one-tool protection suite you run locally.
We deliberately do less: renaming with optional string encryption, control-flow obfuscation and reference proxying, plus method virtualization on Pro — with no install and a free tier.
Crypto Obfuscator for .NET pricing
Crypto Obfuscator for .NET: Commercial; current public pricing was not available at review (checked Sep 2026) — see LogicNP Software (SSWare) for pricing.
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 | Crypto Obfuscator for .NET | FreeObfuscator |
|---|---|---|
| Symbol renaming | Yes | Yes |
| String encryption Ours: Pro | Yes | Paid tier |
| Method call hiding / reference proxy Ours: Pro | Yes | Paid tier |
| Control-flow obfuscation Ours: Pro | Yes | Paid tier |
| Anti-debug / anti-tamper We do not do this | Yes | No |
| Resource encryption | Yes | No |
| Assembly merging / embedding | Yes | No |
| Method virtualization Ours: Pro | No | Paid tier |
| Runs locally We process server-side | Yes | No |
| Free tier | No | Yes |
| Zero configuration | No | Yes |
Where Crypto Obfuscator for .NET is strong
- Anti-debug and anti-tamper layers, which we do not offer.
- Resource encryption and assembly merging / embedding.
- Built-in exception / error reporting for obfuscated builds.
- Watermarking to trace leaked copies.
- Runs locally as a single commercial package.
Where it costs you
- Commercial licence, where we have a free tier.
- Install and configuration before you see a result.
- Aggressive protections (anti-tamper, packing-style features) carry the usual antivirus-false-positive risk.
- Local-only — no hosted API to call from CI.
Choosing between them
Choose Crypto Obfuscator for .NET if
- You need anti-debug, anti-tamper, resource encryption or assembly merging.
- You want a broad protection suite in a single local tool.
- You want built-in error reporting for obfuscated crashes.
- Your code cannot leave your network.
Choose FreeObfuscator if
- You want a free renaming pass with no install, and optional Pro protection layers.
- You do not need the heavier anti-debug / anti-tamper layers.
- You want to try it on your assembly before buying anything.
- You would rather avoid antivirus-false-positive risk from aggressive protection.
The verdict
Crypto Obfuscator does considerably more than we do — if you genuinely need anti-tamper, resource encryption or assembly merging, it is a serious suite and we are not a substitute. For the common goal of making your code not casually readable, for free and without setup, renaming plus optional string encryption and control flow covers it, and you can try it in a minute.
Worth knowing before you decide: what obfuscation actually protects against sets realistic expectations about how far any of these tools go.