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G Glass.NET · v1.0.0 · Free

Decompile any .NET assembly into clean, readable C#

A free .NET decompiler you can actually move through — Go to Definition, Find All References, Go To All, call & type hierarchy, C#/IL views and project export. Accurate, modern C#, powered by the ICSharpCode (ILSpy) engine.

100% free · Windows build · no account required · static analysis only — never runs your code

JsonSerializer.cs — Glass.NET
// decompiled from System.Text.Json.dll
public static partial class JsonSerializer
{
    public static TValue? Deserialize<TValue>(string json,
        JsonSerializerOptions? options = null)
    {
        return Deserialize<TValue>(json.AsSpan(), options);
    }
}
// F12 on any symbol → jump to its definition
Reads assemblies from: .NET Framework.NET 6.NET 8.NET 9.NET 10Windows

Why Glass

Built to navigate, not just display

Most decompilers show you code and leave you to scroll. Glass lets you move through it — jump to definitions, find every caller, search everything, and export it back to a project.

Accurate, modern C#

Powered by the ICSharpCode (ILSpy) engine, Glass reconstructs clean C# that keeps up with the latest language features — async/await, pattern matching, records and more.

Go to Definition & references

F12 (or Ctrl+Click) jumps to any symbol; Shift+F12 streams every reference. Find implementations, and walk call & type hierarchies to understand unfamiliar code fast.

Find anything, instantly

Go To All (Ctrl+T) fuzzy-opens any type or member across every loaded assembly, and Find in Files searches decompiled source for any string.

C# and IL, side by side

Read the decompiled C# or flip any member to its IL, with folding, breadcrumbs, and navigation history so you never lose your place.

Export to a buildable project

Reconstruct a compilable C# project — or a single member — from any assembly, in the app or with the glass export CLI.

Fast & safe on huge assemblies

Lazy loading and off-thread decompilation stay responsive across thousands of types — and it is strictly static analysis: Glass never runs the code it inspects.

See it in action

Clean code, fast navigation

Decompiled C# you can read, search, and jump around in — instantly.

A modern ILSpy, dnSpy & .NET Reflector alternative

Glass.NET pairs the proven ILSpy decompiler engine with a fast, keyboard-driven navigation model. It's free, it doesn't run the code it inspects (static analysis only), and it's quick enough for real-world assemblies with thousands of types.

Free & open

Free, forever

No license, no seats, no sign-up. Glass.NET is our gift to the .NET community — and a preview of the craftsmanship that goes into every Delta1 Labs tool, like Nebula.NET.

Download free

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