Introducing Nebula.NET
Our first product is here — a .NET obfuscation and hardening suite built for correctness, with a CLI, desktop GUI and CI integration.
Today we’re launching Nebula.NET, the first product from Delta1 Labs — and the start of a broader suite of developer tools we’re building.
Nebula.NET is a .NET IL obfuscation and hardening tool. It makes your compiled assemblies meaningfully harder to reverse-engineer, while staying faithful to how your application actually runs.
Why we built it
The .NET ecosystem is fantastic, but IL is easy to decompile back into near-original source. If you ship desktop apps, libraries, or on-prem software, that’s a real risk to your intellectual property. Existing tools often either do too little (cosmetic renaming) or too much (breaking your app in subtle ways). We wanted something we’d trust on our own releases.
What it does
- Identifier renaming that preserves your public API, reflection targets and serialization.
- Real control-flow flattening — methods are rewritten into dispatcher-driven state machines, not just reordered.
- String encryption with a fresh per-build key and an unbranded, inlined decryptor.
- Anti-tamper and anti-debug with configurable reactions.
- Resource and metadata hardening, plus Authenticode signing in the pipeline.
Correctness is the feature
The hardest part of an obfuscator isn’t obscuring code — it’s obscuring code without changing behavior. Every transform in Nebula is validated across .NET Framework 4.8 and .NET 6, 8, 9 and 10, with a test suite that checks the protected output runs identically to the original. Protection you can’t trust isn’t protection.
Three ways to run it
Use the desktop GUI for one-off jobs and exploration, the CLI for scripting, and the MSBuild integration to protect automatically on every build in CI.
Try it today
The Free edition is fully functional for evaluation, with caps on a couple of features. When you’re ready for the full suite, a seat-based license unlocks everything.
Download Nebula.NET · Read the docs · See pricing
This is just the beginning — we have more tools on the way. If there’s something you wish existed, tell us.
Try Nebula.NET
Harden your .NET code in minutes — start with the free edition.