Best ILSpy Alternatives in 2026
The top ILSpy alternatives are Ghidra, Binary Ninja and IDA Pro: 15 decompiler software our editors would look at instead of ILSpy, in our ranking order.
ILSpy: A capable free .NET decompiler with broad tooling, but no verified debugging. Where it falls short: does not target native code.
Switching from ILSpy? For most decompiler software buyers the best ILSpy alternative is Ghidra, built for free, broad native and bytecode analysis.
Why People Look for an ILSpy Alternative
- Does not target native code
- Verified debugging is absent
- Prebuilt binaries may vary by platform
- No native-code decompilation — 10 of the alternatives below have it
Quick Picks by What You Need
- Best overallGhidra9.4
Free, broad native and bytecode analysis
Visit Ghidra - Best free optionGhidra9.4
Has a free plan
Visit Ghidra - Best for native-code decompilationGhidra9.4
Native-code decompilation (ILSpy: no)
Visit Ghidra
All 15 ILSpy Alternatives, Ranked
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
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Best forFree, broad native and bytecode analysis
- Better than ILSpy:
- Native-code decompilation
- Editor score 9.4 vs 7.6
A free, broad toolkit for native-code, Java, and DEX analysis.
- Native-code decompilation
- Debugger integration
- Plugin support
9.4/10★★★★★Visit Ghidra -
Best forBroad native reverse engineering on a budget
- Better than ILSpy:
- Native-code decompilation
- Editor score 9.2 vs 7.6
A broad native reverse-engineering toolkit with perpetual paid licenses and a free plan.
- Native-code decompilation
- Debugger integration
- Plugin support
9.2/10★★★★★Visit Binary Ninja -
Best forEnterprise-grade native reverse engineering
- Better than ILSpy:
- Native-code decompilation
- Editor score 9.0 vs 7.6
A deep native reverse-engineering suite for teams that need broad architecture support.
- Native-code decompilation
- Debugger integration
- Plugin support
9.0/10★★★★☆Visit IDA Pro -
Best forProfessionals handling many code formats
- Better than ILSpy:
- Native-code decompilation
- Editor score 8.8 vs 7.6
A broad reverse-engineering toolkit for professionals who analyze many code formats.
- Native-code decompilation
- Debugger integration
- Plugin support
8.8/10★★★★☆Visit JEB -
Best forFree native decompilation across platforms
- Better than ILSpy:
- Native-code decompilation
- Editor score 8.4 vs 7.6
A free, extensible decompiler with GUI, CLI, API, scripting, and multi-architecture support.
- Native-code decompilation
- Plugin support
- Scripting API
8.4/10★★★★☆Visit Reko -
Best forOpen-source native analysis with automation
- Better than ILSpy:
- Native-code decompilation
- Editor score 8.2 vs 7.6
A scriptable decompiler for native-code analysis across desktop, web, and API workflows.
- Native-code decompilation
- Debugger integration
- Scripting API
8.2/10★★★★☆Visit rev.ng -
Best forOpen-source executable analysis
- Better than ILSpy:
- Native-code decompilation
- Editor score 8.0 vs 7.6
A free, cross-platform decompiler for open-source executable analysis.
- Native-code decompilation
- Plugin support
- Scripting API
8.0/10★★★★☆Visit RetDec -
Best forJava and Android bytecode analysis
- Better than ILSpy:
- Editor score 7.9 vs 7.6
A capable free toolkit for inspecting, editing, and instrumenting Java and Android bytecode.
- Debugger integration
- Plugin support
- Bytecode decompilation
7.9/10★★★★☆Visit Recaf -
Best forFree Java and Android bytecode analysis
- Better than ILSpy:
- Editor score 7.8 vs 7.6
A broad free toolkit for analyzing Java archives and Android packages on Windows or macOS.
- Debugger integration
- Plugin support
- Bytecode decompilation
7.8/10★★★★☆Try Bytecode Viewer -
Best forFree Android APK and DEX decompilation
- Better than ILSpy:
- Editor score 7.7 vs 7.6
A free, local Android decompiler with GUI, CLI, resource decoding, and Smali debugging.
- Debugger integration
- Plugin support
- Bytecode decompilation
7.7/10★★★★☆Visit JADX -
Best forWindows .NET browsing and source recovery
A focused, free choice for browsing .NET assemblies and recovering source context on Windows.
- Debugger integration
- Bytecode decompilation
7.4/10★★★★☆Visit JetBrains -
Best forNative analysis on macOS or Linux
- Better than ILSpy:
- Native-code decompilation
A capable native-code analysis tool for macOS and Linux, with broad reverse-engineering features.
- Native-code decompilation
- Debugger integration
- Scripting API
7.3/10★★★★☆Visit Hopper -
Best forWindows binary diffing and patching
- Better than ILSpy:
- Native-code decompilation
A focused Windows tool for native-code analysis, comparison, and patching.
- Native-code decompilation
- Plugin support
- Scripting API
7.2/10★★★★☆Visit Relyze -
Best forFree classic native-code decompilation
- Better than ILSpy:
- Native-code decompilation
A free, focused choice for classic native-code decompilation across three architectures.
- Native-code decompilation
7.1/10★★★★☆Visit Boomerang -
Best forProgrammable Java decompilation
A capable free Java decompiler for developers who need code and bytecode APIs.
- Bytecode decompilation
- Scripting API
7.0/10★★★★☆Visit Procyon
ILSpy Alternatives: Common Questions
What is the best alternative to ILSpy?
Ghidra: #1 in our Decompiler Software ranking, with an editor score of 9.4 out of 10. A free, broad toolkit for native-code, Java, and DEX analysis.
Is there a free alternative to ILSpy?
Yes. Ghidra, Binary Ninja, JEB, Reko and rev.ng have a free plan or a free tier (13 of the 15 alternatives on this page).
Why do people look for ILSpy alternatives?
Does not target native code; Verified debugging is absent; Prebuilt binaries may vary by platform.
How do I switch from ILSpy?
Export your data from ILSpy (most tools have an export in their settings). Sign up for the alternative; start on its free plan or trial if it has one. Import your export and set up the integrations your team relies on. Run both side by side for a short while, then cancel ILSpy.
How to Switch from ILSpy
- Export your data from ILSpy (most tools have an export in their settings).
- Sign up for the alternative; start on its free plan or trial if it has one.
- Import your export and set up the integrations your team relies on.
- Run both side by side for a short while, then cancel ILSpy.
ILSpy vs Each Alternative
| # | Tool | Free plan | Paid from | Native-code decompilation | Bytecode decompilation | Debugger integration | Scripting API | License type | Score |
|---|---|---|---|---|---|---|---|---|---|
| 11 | ILSpy | Yes | Free | No | Yes | Yes | Free | 7.6 | |
| 1 | Ghidra | Yes | Free | Yes | Yes | Yes | Yes | Free | 9.4 |
| 2 | Binary Ninja | Yes | $199 one-time | Yes | Yes | Yes | Mixed | 9.2 | |
| 3 | IDA Pro | No | $1,099/yr | Yes | Yes | Yes | Subscription | 9.0 | |
| 4 | JEB | Yes | $1,200/user/yr | Yes | Yes | Yes | Yes | Mixed | 8.8 |
| 5 | Reko | Yes | Free | Yes | Yes | Free | 8.4 | ||
| 6 | rev.ng | Yes | Free | Yes | Yes | Yes | Mixed | 8.2 | |
| 7 | RetDec | Yes | Free | Yes | Yes | Free | 8.0 | ||
| 8 | Recaf | Yes | Free | No | Yes | Yes | Yes | Free | 7.9 |
| 9 | Bytecode Viewer | Yes | Free | No | Yes | Yes | Yes | Free | 7.8 |
| 10 | JADX | Yes | Free | No | Yes | Yes | Free | 7.7 | |
| 11 | dotPeek | Yes | Free | No | Yes | Yes | Free | 7.4 | |
| 12 | Hopper Disassembler | No | Yes | Yes | Yes | Mixed | 7.3 | ||
| 13 | Relyze | Yes | Yes | No | Yes | Mixed | 7.2 | ||
| 14 | Boomerang | Yes | Free | Yes | No | Free | 7.1 | ||
| 15 | Procyon | Yes | Free | No | Yes | Yes | 7.0 |
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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