Top 10 Most Popular Code Review Tools for Developers and Testers

Introduction to Code Review:

Code Review is nothing but testing the Source Code. Generally, it is used to find out the bugs at early stages of the development of software.

With this code review, the quality of the software gets improved and the bugs/errors in the program code decrease.

Code Review Tools

The Code Review Tools automates the review process which in turn minimizes the reviewing task of the code. There are two ways of performing reviews namely Formal Inspections and Walkthroughs.

However, these both techniques are heavy-weight techniques that may not be practical sometimes. Using formal inspections we can find more defects but its time consuming and difficult.

Few other light-weight techniques have been explored. They are mentioned below

  1. Over–the–shoulder: The developer stands behind the author’s shoulder who reviews the code. This is an informal review.
  2. Email pass around: The author sends an email of the code to the reviewers for code review. This technique is preferred by open source projects.
  3. Pair Programming: Two developers develop the code together on a single machine. This is a time-consuming technique.
  4. Tool-assisted: Few specialized tools are used by authors and reviewer to review the code.

Note: Code Reviews are documented as the efficient way of finding the errors in a code and fixing the same at early stages.

Best code review tools

  • Collaborator
  • Codebrag
  • Gerrit
  • Codestriker
  • Rhodecode
  • Phabricator
  • Crucible
  • Veracode
  • Review Assistant
  • Review Board


=>> Let us know if you want to suggest any other tool in the list.


Here we go with the brief review of the individual tool.

#1) Collaborator

Collaborator tool

Collaborator is the most comprehensive peer code review tool, built for teams working on projects where code quality is critical.

  • See code changes, identify defects, and make comments on specific lines. Set review rules and automatic notifications to ensure that reviews are completed on time.
  • Custom review templates are unique to Collaborator. Set custom fields, checklists, and participant groups to tailor peer reviews to your team’s ideal workflow.
  • Easily integrate with 11 different SCMs, as well as IDEs like Eclipse & Visual Studio
  • Build custom review reports to drive process improvement and make auditing easy.
  • Conduct peer document reviews in the same tool so that teams can easily align on requirements, design changes, and compliance burdens.

Official website => To learn more about Collaborator and start a free trial, visit here.

#2) Codebrag

Codebrag Logo

  • Codebrag is a simple, light-weight, free and open source code review tool which makes the review entertaining and structured.
  • Codebrag is used to solve issues like non-blocking code review, inline comments & likes, smart email notifications etc.
  • With Codebrag one can focus on workflow to find out and eliminate issues along with joint learning and teamwork.
  • Codebrag helps in delivering enhanced software using its agile code review.
  • License for Codebrag open source is maintained by AGPL.

Visit here for further details on this code review tool.

#3) Gerrit

Gerrit Logo

  • Gerrit is a free web-based code review tool used by the software developers to review their code on a web-browser and reject or approve the changes.
  • Gerrit can be integrated with Git which is a distributed Version Control System.
  • Gerrit provides the repository management for Git.
  • Using Gerrit, project members can use rationalized code review process and also the extremely configurable hierarchy.
  • Gerrit is also used in discussing few detailed segments of the code and enhancing the right changes to be made.

Explore the site from here for more features on Gerrit.

#4) Codestriker

Codestriker Logo

  • Codestriker is an open source and free online code reviewing web application that assists the collaborative code review.
  • Using Codestriker one can record the issues, comments, and decisions in a database which can be further used for code inspections.
  • Codestriker supports traditional documents review. It can be integrated with ClearCase, Bugzilla, CVS etc.
  • Codestriker is licensed under GPL.

You can visit the website here for further information.

#5) Rhodecode

Rhodecode Logo

  • Rhodecode is an open source, protected and incorporated enterprise source code management tool.
  • Rhodecode serves as an integrated tool for Git, Subversion, and Mercurial.
  • Rhodecode main features are team collaboration, Repository Management, and Code security & authentication.
  • Rhodecode has 2 editions, Community Edition (CE) which is a free and open source and Enterprise Edition (EE) is licensed per user.
  • Rhodecode automates the workflows to execute faster.

Visit here for more details.

#6) Phabricator

Phabricator Logo

Phabricator is a complete suite of open-source software development applications which include light-weight web-based code review, planning, testing, browsing and audit score, finding bugs etc.

  • Code review tool from Phabricator suite is termed as “Differential”. It is used in minimizing the efforts required in creating the best quality code.
  • Phabricator has two types of code review workflows, namely “pre-push” also termed as “review” and “post-push” termed as “audit”.
  • Phabricator can be integrated with Git, Subversion, and Mercurial.

For more information on this tool, visit here.

#7) Crucible

Crucible Logo

Crucible is a web-based collaborative code review application used by developers for code review, finding defects, discussing the changes and knowledge sharing etc.

  • Crucible is a flexible application that accommodates ample range of work approaches and team sizes.
  • Crucible is a lightweight peer code review tool that is used in pre-commit and post-commit reviews.
  • Code review has become easy for SVN, Perforce, and CVS etc using Crucible.

You can visit the website here and browse for a free trail and more information regarding this tool.


#8) Veracode

Veracode Logo

Veracode is a company which delivers various solutions for automated & on-demand application security testing, automated code review etc.

  • Veracode is used by the developers in creating secured software by scanning the binary code or byte code in place of source code.
  • Using Veracode one can identify the improper encrypted functionalities, malicious code and backdoors from a source code.
  • Veracode can review a large amount of code and returns the results immediately.
  • To use Veracode there is no need to buy any software or hardware, you just need to pay for the analysis services you need.

To learn about Veracode services, visit here

Note: Now Veracode is acquired by CA Technologies.

For a free trial of Veracode, please visit the website from here.

#9) Review Assistant

Review Assistant Logo

Review Assistant is a peer code review tool by Devart (Software Development Company) which supports the visual studio.

  • Review Assistant is a simple & better tool that follows a light-weight process in code reviews.
  • Review Assistant is used in code reviewing for creating review requests and responding to the same.
  • Review Assistant integrates with TFS, Subversion, Git, Perforce and Mercurial.
  • In Review Assistant, the developer can switch between the review comments and the source code.

To learn more about Review Assistant by Devart and its free trail, you can visit here.

#10) Review Board

Review Board Logo

Review Board is a web-based, collaborative, free and open source tool used for code review and document review by open source projects and companies.

  • Using Review Board for code review one can save money and time. Time saved can be used in concentrating on creating great software.
  • Review Board can be integrated with ClearCase, CVS, Perforce, Plastic etc.
  • In a code review by Review Board tool, the code is syntax highlighted which makes it be read faster.
  • Review Board supports pre-commit reviews and post-commit reviews.

Visit the website from here for a ree trial and for further details on Review Board code review tool.

Additional Code Review Tools

Below are few more additional code review tools that are used by developers in reviewing the source code.

#11) Barkeep

Using Barkeep one can have fun in reviewing the code which makes the review faster. With this tool, one can email the comments to his associate committers.

For official website check here

#12) JArchitect

JArchitect is a wonderful tool for analyzing the Java code. After each review, it surrenders a report stating the development of your project or software which eases your task of customizing the code.

For official website check here

#13) Code Review Tool

Code Review Tool uses the light-weight review technique by providing all the advantages of formal inspections by reducing the effort and time.

For official website check here

#14) Reviewable

Reviewable is a fresh, light-weight and powerful code review tool which makes the code review faster and thorough. It facilitates in improving the code quality by cleaning the User Interface, Customizing the code font, finding bugs or issues, highlighting the syntax etc.

For official website check here

#15) Rietveld

Rietveld is a web based code collaborative code review tool from Google. Basically, it was developed to demonstrate the google app engine. However, now it is used by many open source projects for code review.

For official website check here

#16) Peer Review Plugin

Peer Review Plugin is a web-based environment that makes the code review user-friendly. It allows the developers to review the code during their own time and that too in a distributed manner. The ultimate purpose of this plug-in is to review the files from the repository and comment the same.

For official website check here


This article provides you a list of code review tools which makes the software development easy for the developers by finding the defects or bugs at early stages. Using such Code review tools the overall quality of the software gets improved by locating the issues or mistakes that were unnoticed in the initial phases of development.


=>> Let us know if you want to suggest any other tool in this list.