Code Rule and Code Query
Hundreds of default code rules to check against best practices. Support for Code Query over C# LINQ (CQLinq) to easily customize rules and query code.
NewNDepend.AI: Fix .NET Issues with Your Coding Agent
Our harness, your agent. NDepend.AI hands the issues found by NDepend to Claude Code, Codex, GitHub Copilot CLI or Junie, and verifies every fix with a build, the impacted tests and a new analysis. On eShopOnWeb: 496 of 511 issues fixed, 531 tests added, coverage from 45% to 98%.
Discover NDepend.AI See the 6 run reports
Easily Manage Large Projects
Most companies have large systems that work together, often in mysterious ways. NDepend's in-depth reporting and toolset can help your company enforce its own coding standards and maintain complex projects.
Powerful Dependency Graph and Matrix
Explore how the code is actually structured and shed light on architectural flaws thanks to the most powerful code dependency graph and dependency matrix available in the tool industry.
NDepend.MCP.Server
Your coding agent asks NDepend: the open-source MCP server gives it the issues, rules, quality gates, dependencies and metrics of your code, to fix NDepend rules, Roslyn Analyzers and R# Code Inspections issues while you steer.
Continuous .NET Code Quality and Security
A unique approach to continuously keep the technical debt under control and reimburse it with time.
Interactive Web Report
Integrate NDepend analysis into your CI / CD pipeline and obtain interactive and detailed web reports to explore progression and prevent code quality degradation.
Quality Gates
Fail the build pipeline upon customizable PASS / WARN / FAIL code quality and security criteria.
Import Roslyn and ReSharper Issues
Gain a 360 view of your .NET code quality by importing your preferred Roslyn Analyzers' issues and ReSharper Code Inspections' issues into the NDepend web report and UI.
Monitor the Health of Your Application
NDepend allows your team to accurately gauge the overall health of your application, no matter how complex it is.
Code Quality and Code Metrics
Lines of Code, Cyclomatic Complexity, Coupling, Nesting Depth, Rank, NDepend supports them all (and much more).
Trend Monitoring
Get Trend Charts about pretty much any code metrics to master the evolution of your application.
Harness Test Coverage Data
Import test coverage data, and make the most of it in the NDepend feature-rich context.
Reduce Friction Between Your Developer Teams
NDepend's reporting and analysis helps architects and developers to communicate and reduce confusion.
Complexity and Diagrams
Spot too complex code at a glance thanks to unique diagramming capabilities.
Code Diff since Baseline
Compare two versions of a code base and its issues set, and browse diff and changes in any way you can think of.
Warnings on Build Process Health
Be warned of potential build process problems before they end up causing friction and pain.
Working with Legacy Code is Now Easier
By mapping out the structure of the project, it is much easier to see how components and dependencies are connected.
Detect Dependency Cycles
Get rid of dependency cycles between components to achieve higher code maintainability.
Enforce Immutability and Purity
NDepend helps maintaining clean side-effects free code to write highly maintainable products.
Real-World Proof
Integrate with Visual Studio, Azure DevOps, GitHub and any other CI/CD pipeline, super fast and lightweight analysis, NDepend is conceived for real-world programmers.
NDepend.API and Power Tools
Write your own static analyzer based on NDepend.API, or tweak existing open-sources Power Tools.
In-Depth Issues Management
Explore the issues-set in a few clicks and focus your effort on what is urgent and important.
Smart Technical Debt Estimation
For each issue, the cost to fix and the severity are estimated through smart and customizable C# formulas. Thus estimations proposed are realistic.
Interactive Web Report
See some sample reports below:
Reports of NDepend.AI Fix Runs
Six runs on five open-source code bases fixed by NDepend.AI driving Claude Code (Opus as the premium model, Sonnet as the economy model). Each report opens on its AI Assistant tab: the complete log of the run, from the planning pass to the fix rounds, the parallel agent sessions, the tests, the change review and the final report, next to the NDepend report of the fixed code, diffed against the code at the start of the run.
| Code base | Issues fixed | Duration | Cost | Coverage | Tests (+written) | Bugs found |
|---|---|---|---|---|---|---|
| eShopOnWeb | 468 / 493 95% | 1h 21min | $44 | 45% → 97.5% | +506 619 green | 3 |
| Jellyfin | 150 / 157 96% | 1h 52min | $40 | 31% → 31.6% | +196 3,910 green | 0 |
| Jellyfin (large scale fix) | 1,521 / 1,666 91% | 12h 32min | $602 | 31% → 56.3% | +4,287 8,001 green | 14 |
| Microsoft.FeatureManagement | 283 / 292 97% | 1h 06min | $25 | 78% → 99.6% | +200 347 green | 1 |
| Carter | 222 / 223 100% | 39min | $13 | 68% → 99.6% | +107 271 green | 0 |
| NodaTime | 354 / 387 91% | 1h 26min | $48 | 98% → 99.4% | +313 23,029 green | 0 |
The figures are those of each report's final report: the issues of the targeted set that NDepend's re-analysis finds fixed, the wall-clock duration of the run, the cost billed by the agent's provider, the code coverage before and after the run, the tests the run wrote and the tests green at the end. Bugs found counts the potential bugs the agent reported in the application code while writing tests and fixing issues: the run leaves them unfixed and lists each one in its final report, to check by hand.
Reports Compared with a Baseline
For these sample reports are imported:
Such serverless report can be generated by invoking... NDepend.Console.exe $absolute-path-to-an-NDepend-project-file$...from your CI/CD running on Windows, Linux and Mac 
You can generate the report using a trial license, a Build-Machine license |
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Related Links::
- NDepend.Console.exe command line arguments
- NDepend Analysis
- Quality Gates and Build Failure
- Critical Rules
- Customize NDepend Report
- Sample NDepend Reports
- NDepend Analysis Inputs: Detailed explanations about what are NDepend analysis inputs and how NDepend process them.
- Source Files Rebasing: Explains how to rebase files analyzed by NDepend.
Documentation about NDepend integration with: