--- title: JaCoCo Reviews meta\_title: 'JaCoCo Reviews 2026: Details, Pricing, & Features | G2' meta\_description: Filter 52 reviews by the users' company size, role or industry to find out how JaCoCo works for a business like yours. aggregate\_rating: rating\_value: 4.5 review\_count: 52 scale: '5' date\_modified: '2026-08-09' parent\_category: name: Integrated Development Environments (IDE) url: https://www.g2.com/categories/integrated-development-environments-ide --- # JaCoCo Reviews & Product Details JaCoCo is a free, open-source Java code coverage library developed by the EclEmma team. It provides detailed insights into code execution during testing, enabling developers to assess the effectiveness of their test suites and identify untested parts of their codebase. By integrating JaCoCo into the development process, teams can enhance software quality and maintainability. Key Features and Functionality: - Comprehensive Coverage Metrics: JaCoCo measures various coverage types, including instruction (C0), branch (C1), line, method, and class coverage. It also analyzes cyclomatic complexity to identify intricate code segments that may require refactoring. - Bytecode Instrumentation: Utilizing Java bytecode instrumentation, JaCoCo operates without needing source files, allowing for seamless integration into diverse Java environments. - Flexible Integration: JaCoCo supports integration with popular build tools such as Maven, Gradle, and Ant, as well as continuous integration platforms like Jenkins and TeamCity. It also offers plugins for IDEs like Eclipse (via EclEmma) and IntelliJ IDEA, facilitating easy adoption into existing workflows. - On-the-Fly Instrumentation: Through a Java agent, JaCoCo performs on-the-fly instrumentation, enabling real-time coverage analysis without modifying the original codebase. Primary Value and Problem Solved: JaCoCo addresses the critical need for effective code coverage analysis in Java development. By providing detailed coverage reports, it helps developers identify untested code paths, ensuring that applications are thoroughly tested. This leads to higher code quality, reduced risk of defects, and improved software reliability. Its lightweight design and flexible integration options make it suitable for various development environments, from individual projects to large-scale enterprise applications. * * * Seller [Jacoco](https://www.g2.com/sellers/jacoco) Discussions [JaCoCo Community](https://www.g2.com/products/jacoco/discuss) Solution Type Best-of-Breed Show More ## Value at a Glance Averages based on real user reviews. ### Perceived Cost $$$$$ [ View More Pricing Information ](https://www.g2.com/products/jacoco/pricing) ## Top-Rated Alternatives [ ![IntelliJ IDEA](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "IntelliJ IDEA") IntelliJ IDEA 4.6/5(2,388) ](https://www.g2.com/products/intellij-idea/reviews) [ ![Xcode](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Xcode") Xcode 4.2/5(1,039) ](https://www.g2.com/products/xcode/reviews) [ ![NetBeans](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "NetBeans") NetBeans 4.2/5(675) ](https://www.g2.com/products/netbeans/reviews) [ View All Alternatives ](https://www.g2.com/products/jacoco/competitors/alternatives) ## User Insights Average based on 52 real user reviews. Perceived Cost $$$$$ [Log in to unlock pricing and user insights](/login) ## JaCoCo Integrations (2) What do users say about integrations? Integration information sourced from real user reviews. [ ![Product Avatar Image](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Product Avatar Image") Eclipse ](https://www.g2.com/products/eclipse/reviews)[ ![Product Avatar Image](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Product Avatar Image") IntelliJ IDEA ](https://www.g2.com/products/intellij-idea/reviews) Show More ![Joyendra R.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Joyendra R.") JR Joyendra R. Software Engineer Enterprise (\> 1000 emp.) 1/27/2026 "Clear, Self-Explanatory Coverage Visualization That Helps Improve Code Quality" 4.5/5 What do you like best about JaCoCo? Jacoco is very self explanatory. It's visualization of code coverage, per file, per package is very easy to understand. And then the legends in each file showing what part was left uncovered really help improving code coverage. Review collected by and hosted on G2.com. What do you dislike about JaCoCo? When a branch is missed, it just puts it in yellow. That's difficult to navigate at times since some conditions have a lot of branches and without knowing exactly which branch was left uncovered, spot checking becomes a little difficult. Review collected by and hosted on G2.com. What problems is JaCoCo solving and how is that benefiting you? Jacoco is maintaining a high bar in my codebase by ensuring a minimum of 90% code is covered. Any new line added to the code must be covered else the build fails which acts as a forcing function for people to ensure the right test cases are put in place before making any commits. But it also helps us devs to identify branches we might have genuinely left. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Srikant V.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Srikant V.") SV Srikant V. Staff Software Engineer Enterprise (\> 1000 emp.) 9/30/2025 "JaCoCo – Fast, Simple, Reliable Code Coverage Tool" 5/5 What do you like best about JaCoCo? What I like best about JaCoCo is its simplicity and accuracy. It gives code coverage reports quickly without much setup. Integration with Maven/Gradle is smooth, and the reports (HTML, XML) are easy to read. I also like that it works with unit tests automatically, no extra work needed. In short: simple, fast, reliable, and easy reporting. Review collected by and hosted on G2.com. What do you dislike about JaCoCo? What I don’t like about JaCoCo is it only measures coverage, not quality of tests. Sometimes it shows 100% coverage but tests may still be weak. Also, debugging coverage issues in complex projects can be tricky. In short: coverage-only tool, no test quality check, tricky in big projects. Review collected by and hosted on G2.com. What problems is JaCoCo solving and how is that benefiting you? aCoCo solves the problem of knowing which parts of your code are tested and which are not. Without it, you don’t know if your unit tests are covering all scenarios. Benefit for me: Helps find untested code quickly. Improves code quality by making sure tests are meaningful. Saves time in manual checking of test coverage. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: G2 invite NR Naveen R. Senior Software Engineer Small-Business (50 or fewer emp.) 3/13/2026 "A Must-Have Coverage Tool for Java Developers" 4.5/5 What do you like best about JaCoCo? Its very good tool for every java developer, it helps how much percentage of coverage, my Junits are. I like to use everyday. Review collected by and hosted on G2.com. What do you dislike about JaCoCo? It would be better to improve UI and the look & feel. Review collected by and hosted on G2.com. What problems is JaCoCo solving and how is that benefiting you? it helps a developer to make sure to add Junits for entire java code, giving opportunity for developer Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: G2 invite NA Nikhil A. Computer Scientist 2 Enterprise (\> 1000 emp.) 10/20/2025 "Lightweight, Open Source, and Seamless Java Code Coverage" 5/5 What do you like best about JaCoCo? This is one of the best lightweight Java code coverage tools I have used. It integrates easily with Maven projects, and I find its line coverage metrics particularly impressive. Being open source is a big plus. Additionally, it works seamlessly with IntelliJ, which makes it even more convenient. Review collected by and hosted on G2.com. What do you dislike about JaCoCo? I couldn't find many negatives, but I do think the UI reporting could be enhanced with more detailed information. There's definitely room for improvement in that area. Review collected by and hosted on G2.com. What problems is JaCoCo solving and how is that benefiting you? It helped my project by providing code coverage for my integration tests. I was able to identify the paths that were not covered and take the necessary steps to address them. The easy integration with Jenkins and SonarQube also assists me in tracking the history of my code coverage. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Verified User in Consulting](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Consulting") TC Verified User in Consulting Enterprise (\> 1000 emp.) 5/4/2026 "Simple Setup with Sensible Defaults That Just Work as needed" 4.5/5 What do you like best about JaCoCo? Its configuration is simple. Even if I don’t configure anything, it still works with sensible default values. Review collected by and hosted on G2.com. What do you dislike about JaCoCo? Some time fails with improper failure messages. Review collected by and hosted on G2.com. What problems is JaCoCo solving and how is that benefiting you? It helps me generate test coverage reports and it lets me know if any line of code is not covered by unit testing. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Mohd U.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Mohd U.") MU Mohd U. Senior Java Engineer Mid-Market (51-1000 emp.) 12/9/2025 "Effortless Code Coverage with Intuitive Reporting" 4.5/5 What do you like best about JaCoCo? I like the seamless integration JaCoCo offers and appreciate that it provides both line and method coverage. I think the clear visual reports help in better understanding the areas to improve. The initial setup was pretty straightforward, making it easier to get started. Review collected by and hosted on G2.com. What do you dislike about JaCoCo? Sometimes it can create issues handling multi-module projects. It can be more intuitive while defining plugin config for multi-module projects. Review collected by and hosted on G2.com. What problems is JaCoCo solving and how is that benefiting you? I use JaCoCo to measure code coverage and quality, helping us meet our organization's 80% code coverage mandate. Review collected by and hosted on G2.com. Show More Our network of Icons are G2 members who are recognized for their outstanding contributions and commitment to helping others through their expertise.G2 IconValidated ReviewerIncentivizedSource: G2 invite ![Chetan M.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Chetan M.") CM Chetan M. Software Engineer Enterprise (\> 1000 emp.) 9/30/2025 "Comprehensive Test Coverage with Minor Setup Hiccups" 4.5/5 What do you like best about JaCoCo? I appreciate JaCoCo for its ability to maintain high test coverage standards, which is crucial for our project's quality. The integration of test coverage reports into our pipeline helps ensure build integrity. Additionally, the detailed reports allow me to identify untested lines, enhancing overall code quality. Review collected by and hosted on G2.com. What do you dislike about JaCoCo? I sometimes miss runtime bugs because JaCoCo might not detect them. It would be helpful to have an integration part for testing that offers insights into those issues. Review collected by and hosted on G2.com. What problems is JaCoCo solving and how is that benefiting you? JaCoCo helps ensure our build quality by integrating coverage reports, enforcing coverage thresholds, and improving code quality, which supports our project's success. Review collected by and hosted on G2.com. Show More Our network of Icons are G2 members who are recognized for their outstanding contributions and commitment to helping others through their expertise.G2 IconValidated ReviewerIncentivizedSource: G2 invite ![Muhammad A.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Muhammad A.") MA Muhammad A. 10/5/2025 "Perfect for Beginners, Easy Setup" 5/5 What do you like best about JaCoCo? I love how easy JaCoCo is to set up and use, which made integrating it into our software development lifecycle very smooth. It provides a simple and efficient way to perform tasks, making the software integrated development process more accessible and clear, even for beginners. Review collected by and hosted on G2.com. What do you dislike about JaCoCo? I would only suggest changing the logo of JaCoCo. Review collected by and hosted on G2.com. What problems is JaCoCo solving and how is that benefiting you? I find JaCoCo beneficial for software integrated development, offering an easy way to manage tasks and providing specification formats and frameworks, which simplifies our process. Review collected by and hosted on G2.com. Show More Validated ReviewerSource: Organic ![Prashant P.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Prashant P.") PP Prashant P. Software Engineer Enterprise (\> 1000 emp.) 9/18/2023 "JaCoCo Code Coverage tool" 5/5 What do you like best about JaCoCo? We can verify how many lines of code is executed and how many lines of code is not executed in unit testing.We can make sure our bussiness logic is working as expected. We are able to get the details of the code which is not tested then we can test those missed lines of code also by writing better Unit Test scenarios. Review collected by and hosted on G2.com. What do you dislike about JaCoCo? For Legacy Project implementing Jacoco plugin is tough nut to crack, beacause all modern project flows this approach,but not the legacy one. It don''t provide complete details of code coverage like code smell,code bugs in the java code other than that it is a good tool for Code Coverage. Review collected by and hosted on G2.com. What problems is JaCoCo solving and how is that benefiting you? It improves overall performance of the java application by providing the details like how many percentages of lines of code is covered,uncovered. It is an open source and free. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerSource: Organic ![Shubham Suryawanshi 1.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Shubham Suryawanshi 1.") S1 Shubham Suryawanshi 1. IT Professional Information Technology and Services Mid-Market (51-1000 emp.) 7/22/2023 "JaCoCo: Unveiling Code Coverage Mastery" 5/5 What do you like best about JaCoCo? The most alluring aspect of JaCoCo is its capacity to offer thorough code coverage analysis. It provides comprehensive insights into the efficacy of test cases with support for line, branch, method, and instruction-level coverage. It's impressive how accurately JaCoCo measures code coverage. It accomplishes this without significantly increasing performance overhead, ensuring my tests run quickly. Its accessibility during development is improved by integrating with well-known Integrated Development Environments (IDEs), like Eclipse and IntelliJ IDEA. Review collected by and hosted on G2.com. What do you dislike about JaCoCo? For legacy codebases with low or no test coverage, integrating JaCoCo presents challenges. Understanding and addressing existing gaps in test coverage require additional effort, especially in large and complex codebases. Review collected by and hosted on G2.com. What problems is JaCoCo solving and how is that benefiting you? JaCoCo provides in-depth insights into which portions of the code are run during testing by measuring code coverage at several levels, including line, branch, method, and instruction. Its acceptance into the development workflow is eased by its smooth integration with well-known build technologies like Maven and Gradle. Code coverage analysis will become an automatic and essential step in the build and testing process thanks to the seamless integration. Review collected by and hosted on G2.com. Show More 7/24/2023 Validated ReviewerIncentivizedSource: G2 invite ## Questions about JaCoCo? Ask real users or explore answers from the community Get practical answers, real workflows, and honest pros and cons from the G2 community or share your insights. [ Ask about JaCoCo ](https://www.g2.com/products/jacoco/discussions/new) GU Guest User • Last activity over 3 years ago What is difference between JaCoCo and SonarQube? 0 Upvotes 1 [ Join the conversation ](https://www.g2.com/discussions/what-is-difference-between-jacoco-and-sonarqube) GU Guest User • Last activity about 2 months ago What is JaCoCo used for? 0 Upvotes 2 [ Join the conversation ](https://www.g2.com/discussions/what-is-jacoco-used-for) [ View all Discussions ](https://www.g2.com/products/jacoco/discuss) ##### Pricing Pricing details for this product isn’t currently available. Visit the vendor’s website to learn more. [ View More Pricing Information ](https://www.g2.com/products/jacoco/pricing) ## Work at Jacoco? Claim this profile to respond to reviews, update product info, and reach in-market buyers. 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