13 Best Code Coverage Tools for Java, C, C++, C#, Python in 2020

Details: Last Updated: 04 July 2020

Code coverage is an important measure that quantifies the degree to which the source code of the program has been tested. There is a plethora of Code Coverage Tools in the market and selecting one for your project could be a challenge.

Following is a curated list of Top 13 handpicked Code Coverage tools with popular features and latest download links

1) Coco

Coco-platform is a multi-language code coverage tool. Automatic source code instrumentation helps you to measure test coverage of statements, branches, and conditions.

Features:

Coco allows you to perform statement coverage, branch coverage, MC/DC and other levels
Coco supports C, C++, C#, Tcl, and QML
Helps you to merge multiple execution reports to provide advanced analysis

2) Cobertura

Cobertura is a popular open source code coverage tool. It allows you to execute tasks via Maven and Ant, or the Cobertura CLI. You can embed with other multiple QA tools.

Features:

Allows you to measure coverage without having the source code
Helps you to find which parts of your Java program are lacking test coverage
Allows you to represent reports in HTML and XML format
Helps you to test lines and branches of the class & method

Download link: https://cobertura.github.io/cobertura/

3) Coverage.py

Coverage.py is another useful code coverage tool. It helps you to monitor Python programs, notes which are parts of the code have been executed.

Features:

Coverage.py helps you to specify what source files you want it to analyze via the configuration file
It also helps you to analyze the source to find out code that which could have been executed but was not.

Download link: https://coverage.readthedocs.io/

4) JaCoCo

JaCoCo is a free Java code coverage tool distributed under the Eclipse Public License. It is an open source free code coverage tools for Java, which has been made by the EclEmma.

Features:

JaCoCo offers instructions, line and branch coverage
It supports Java 7 and Java 8
Helps you to test lines and branches of the class & method
Offers easy to navigate HTML or XML report

Download link: https://www.eclemma.org/jacoco/

5) OpenClover

OpenClover tool helps you to measures code coverage for Java and Groovy and collects over 20 code metrics. It helps you to display untested areas of your application. It helps you to combines coverage and metrics to find the riskiest code.

Features:

Helps you to runs your test faster
Allows you to focus what's necessary for your test
Both branch and statement coverage support
Allows you to generate XML-based report that, combined with ReportGenerator, produces TML-based report on coverage
Helps you to keep the balance between application and tests

Download link: http://openclover.org/

6) Bullseye Coverage

BullseyeCoverage is a code coverage software for C++ and C that tells you how much of your source code was tested. This tool allows you to perform unit testing, integration testing, and final release.

Features:

Provide better coverage measurement
Helps you to create more reliable code and save time
Allows you to Include or exclude any portion of the project code
Merge results from distributed testing

Download link: http://www.bullseye.com/

7) NCover

NCover is an advanced level code coverage tool for.Net programs and applications. It provides support for statement coverage and branch coverage. This code coverage tool is available on open source and as well as on commercial license.

Features:

.NET code coverage according to your customized needs
Helps you to test, track and manage a unified coverage number across entire teams
Detailed and centralized data about coverage
Extensive documentation and user support
This tool helps you to perform manual and coverage tests
Deliver products to market faster and confidently in agile environments

Download link: http://www.ncover.com/

8) Vector Software

VectorCAST allows you to implement consistent processes for managing test activities and reporting key quality metrics. This software testing tool offers a cost-effective approach to unit testing, regression management, and code coverage analysis.

Features:

Easy Test Collaboration
System Test Automation
Quality trend & change Impact Analysis
Allows parallel Testing
Web-based Quality Dashboard

Download link: https://www.vectorcast.com/software-testing-products/vectorcast-analytics-web-based-metrics-quality-and-testing

9) Devel:Cover

Devel cover offers code coverage metrics for Perl. With the help of this code cover tool, you can discover areas of code not exercised by your tests. It helps you to tests to create to increase coverage.

Features:

Offers some reports which include various types of HTML output, textual reports
Statement, branch, condition, subroutine, and pod coverage information is reported

Download link: http://search.cpan.org/~pjcj/Devel-Cover-1.23/lib/Devel/Cover.pm

10) dotCover

dotCover offers by JetBrains is a .NET unit test runner and code coverage tool. It allows you to integrate with Jet brains rider with Visual Studio. You can also calculate reports statement-level code coverage in applications for .NET, Silverlight or .NET Core.

Features:

Allows you to visualize code coverage according to your business needs
Provides a console utility for use with a Continuous Integration server
Helps you to customize your coverage analysis with a coverage filter
Allows you to use a shortcut to finds out which unit tests cover a particular statement

Download link: https://www.jetbrains.com/dotcover/

11) Visual Studio

Code coverage feature of Visual Studio helps you to determine what part of your project's code is tested by coded tests like unit tests. The tool allows you to view the previous set of results.

Features:

Helps you to view a previous set of results
Make results readable as text, select export code coverage results
Allows you to merge results of several runs
Allows you to export Code Coverage Results to save the results of a merge operation

Download link: https://msdn.microsoft.com/en-IN/library/dd537628.aspx

12) Istanbul

Istanbul is a code coverage tool used for Javascript. It support of ES6/ES2015+ using babel-plugin. The tool offers all javascript instrumentation library which helps you to tracks statement, branch, and function coverage.

Features: