Open-source, cross-platform .NET assembly browser and decompiler that turns compiled .NET binaries back into readable C#.
27K+105 this week3.8KC#MITWell maintainedUpdated 6 hours ago
2 alternatives
2 best open-source alternatives to dotPeek (2026)
Looking for a free, open-source alternative to dotPeek? These 2 projects can replace it. Each one passed our quality screening and is explained in plain words, so you can compare stars, license and maintenance at a glance.
Quick comparison
| Project | Stars | License | Last commit |
|---|---|---|---|
| icsharpcode/ILSpy | ★ 27K | MIT | 6 hours ago |
| dnSpyEx/dnSpy | ★ 11.4K | GPL-3.0 | 6 days ago |
Unofficial continuation of dnSpy, a debugger and editor for .NET and Unity assemblies that works without source code.
11.4K+41 this week790C#GPL-3.0Updated 6 days ago
FAQ
- Is there a free, open-source alternative to dotPeek?
- Yes. The most popular open-source alternatives to dotPeek on Repolode are ILSpy, dnSpy.
- Which dotPeek alternative should I choose?
- ILSpy has the most GitHub stars and is released under MIT. Compare the license and last commit of each option in the table above before choosing.
How this list is made: AI reads each project's documentation to match it with products it can replace, every project passes our quality screening, and the list is ranked by GitHub stars. Stars updated Nov 7, 2026. How Repolode works