12 Best Code Review Tools for Developers (2022 Edition)

Code revue is a region of the software development process which involves testing the source code to identify bugs at an early stage. A code inspection action is typically conducted before merging with the codebase .
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An effective code inspection prevents bugs and errors from getting into your undertaking by improving code quality at an early stage of the software development action .
In this post, we ’ ll explain what code review is and explore popular code review tools that help organizations with the code review procedure .

What Is the Code Review Process?

The primary goal of the code review work is to assess any raw code for bugs, errors, and quality standards set by the constitution. The code review process should not equitable consist of biased feedback. Therefore, an intangible profit of the code review process is the collective team ’ s improved coding skills .
If you would like to initiate a code review march in your organization, you should first gear decide who would review the code. If you belong to a belittled team, you may assign team leads to review all code. In a larger team size with multiple reviewers, you could enable a summons in which every code review is assigned to an experienced developer based on their workload .
The future consideration for you is to decide on timelines, rounds, and minimal requirements for submitting code recapitulation requests .
The final examination consideration is about how feedback should be given in the code review process. Make certain you highlight the positivist aspects of the code while suggesting alternatives for drawbacks .
Your feedback should be constructive adequate to encourage the developer to understand your perspective and initiate a conversation when necessity .
Code Review Process
It is easy for code reviews to get stuck in limbo, leading to being less effective and evening counter-productive .
Do n’t let bugs and errors affect the hard work you ‘ve done on your project 🐛 Find the best code inspection tools with this template ⤵️

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Why Is Code Review Critical?

The code review process is critical because it is never a part of the courtly course of study in schools. You may learn the nuances of a program language and project management, but code review is a serve that evolves as an organization ages .
Code reappraisal is critical for the pursuit reasons :

  • Ensure that you have no bugs in code.
  • Minimize your chances of having issues.
  • Confirm new code adheres to guidelines.
  • Increase the efficiency of new code.

Code reviews further jumper cable to improving other team members ’ expertness. As a senior developer typically conducts a code review, a junior developer may use this feedback to improve their own code .

How to Perform a Code Review?

There are four ways to conduct code reviews .

Over-the-Shoulder Code Reviews

Over-the-shoulder code reviews are done on the developer ’ s workstation, where an experienced team member walks through the new code, providing suggestions through a conversation. It is the easiest approach to code reviews and does not require a pre-defined structure .
such a code follow-up may still be done informally today, along with a courtly code revue process that may be in station. Over-the-shoulder code reviews were traditionally done in person, while distributed teams can follow this method acting through collaborative tools adenine well .

Email Pass-Around

While over-the-shoulder code reviews are a great way to review new code, geographically distributed teams have traditionally relied on electronic mail for code reviews .
In this code recapitulation process, a developer emails a diff of changes to the unharmed exploitation team, normally through version control systems that automate notifications. This e-mail initiates a conversation on the changes, where team members may request far changes, point out errors, or ask for clarifications .
Email Pass Around
In the early days, electronic mail was the primary means of communication because of Its versatility Open source organizations much maintained a populace mail list, which would besides serve as a medium to discuss and provide feedback on code .
With the second coming of code follow-up tools, these mailing lists distillery exist, but chiefly for announcements and discussion forth .

Pair Programming

Pair Programming
Pair program is a continuous code review process. Two developers sit at a workstation, but only one of them actively codes whereas the other provides real-time feedback .
While it may serve as a great tool to inspect new code and discipline developers, it could potentially prove to be ineffective due to its time-consuming nature. This process locks down the commentator from doing any other productive ferment during the period .

Tool-Assisted

A tool-assisted code review summons involves the use of a specialize joyride to facilitate the summons of code inspection. A instrument by and large helps you with the follow tasks :

  • Organize and display the updated files in a change.
  • Facilitate a conversation between reviewers and developers.
  • Assess the efficacy of the code review process with metrics.

While these are the across-the-board requirements of a code review tool, modern tools may provide a handful of early functions. We ’ ll explore a scope of code review tools late in this post .

Why Should You Use Code Review Tools?

The main result of a code review process is to increase efficiency. While these traditional methods of code review have worked in the past, you may be losing efficiency if you haven’t switched to a code review tool. A code review cock automates the process of code review so that a commentator entirely focuses on the code .
A code revue joyride integrates with your development cycle to initiate a code inspection before newfangled code is merged into the main codebase. You can choose a tool that is compatible with your technology push-down storage to seamlessly integrate it into your work flow .
For example, if you use Git for code management, TravisCI for continuous integration, ensure that you select a tool that supports these technologies to be able to fit into the development process .
There are two types of code testing in software exploitation : moral force and static .
moral force analysis involves checking if the code follows a set of rules and running unit tests, typically performed by a predefined script. static code test is done after a developer creates a fresh code to be merged into the current code .
now let ’ s dive in some of the most popular code review tools !

A Closer Look at 12 Powerful Code Review Tools

In this section, we review the most popular electrostatic code review tools .

1. Review Board

Review Board is a web-based, open source tool for code review. To test this code inspection tool, you can either explore the show on their web site or download and set up the software on your server .
Code review tools: Review Board Overview
The Python program linguistic process and its installers, MySQL or PostgreSQL as a database, and a web server are the prerequisites to run Review Board on a server .
You can integrate Review Board with a wide range of version control systems — Git, Mercurial, CVS, Subversion and Perforce. You can besides link Review Board to Amazon S3 for storing screenshots immediately in the tool .
Review Board Changes Overview
Review Board lets you perform both pre-commit and post-commit code reviews depending on your requirements. If you haven ’ thymine integrated a version control condition system, you can use a diff file to upload code changes to the tool for a review .
A graphic comparison of changes in your code is besides provided. In addition to code reviews, Review Board lets you conduct document reviews excessively .
The first gear interpretation of Review Board came out over a decade ago, but it ’ sulfur placid in active development. therefore, the community for Review Board has grown over the years and you will probable find documentation if you have any issues using the tool .
Review Board is a simple cock for code reviews, which you can host on your waiter. You should give it a try if you do not wish to host your code on a populace web site .

2. Crucible

Crucible is a collaborative code review instrument by Atlassian. It is a commercial suite of tools that allows you to review code, hash out plans changes, and identify bugs across a host of adaptation control systems .
crucible provides two payment plans, one for small teams and while the other for enterprises. For a modest team, you need to make a erstwhile requital of $ 10 for inexhaustible repositories limited to five users. For big teams, the fees start at $ 1100 for ten users and outright repositories .
Both these plans offer a 30-day spare trial without the want for a credit batting order .
Code review tools: Crucible Code Review Tool
like to Review Board, Crucible supports a big number of translation master systems — SVN, Git, Mercurial, CVS, and Perforce. Its primary serve is to enable you to perform code reviews. In accession to overall comments on the code, it allows you to comment inline within the diff view to pinpoint precisely what you ’ re referring to specifically .
crucible integrates well with Atlassian ’ second other enterprise products like Confluence and Enterprise BitBucket. however, you will possibly get the most benefits from crucible by using it aboard Jira, Atlassian ’ second Issue, and Project Tracker. It allows you to perform pre-commit reviews and audits on unite code .

3. GitHub

If you use GitHub to maintain your Git repositories on the cloud, you may have already used forks and pull requests to review code. In case you have no estimate of what GitHub is, here ’ s a founder ’ randomness scout to GitHub and the differences between Git and GitHub .

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Code review tools: GitHub Code Review Tool within a Pull Request
GitHub has an built-in code reappraisal tool in its puff requests. The code review cock is bundled with GitHub ’ s kernel service, which provides a dislodge design for developers. GitHub ’ s free plan limits the numeral of users to three in private repositories. Paid plans start at $ 7 per month .
GitHub allows a commentator with access to the code repository to assign themselves to the pull request and complete a review. A developer who has submitted the pull request may besides request a review from an administrator .
In addition to the discussion on the overall pull request, you are able to analyze the diff, gloss inline, and check the history of changes. The code review instrument besides allows you to resolve simpleton Git conflicts through the world wide web interface. GitHub even allows you to integrate with extra review tools through its market to create a more robust work .
The GitHub code review tool is a big cock if you are already on the chopine. It does not require any extra installation or shape. The basal issue with the GitHub code revue joyride is that it supports only Git repositories hosted on GitHub. If you are looking for a exchangeable code review tool that you can download and host on your server, you can try GitLab .

4. Phabricator

Phabricator is a list of open reservoir tools by Phacility that aid you in reviewing code. While you can download and install the suite of code reappraisal tools on your waiter, Phacility besides provides a cloud-hosted version of Phabricator .
You have no limitations if you install it on your server. however, you ’ ll be charged $ 20 per drug user per month ( with an upper hood of $ 1000/month ), which includes support. To give it a try, you can opt for a 30-day free test .
Code review tools: Core review tools: Phabricator
Phabricator supports the three most popular translation control systems — Git, Mercurial, and SVN. It can manage local repositories, vitamin a well as track outwardly host repositories. You can scale it to multiple servers besides .

Beyond a Traditional Code Review Tool

Phabricator provides a detail platform to have a conversation with your team members. You can either have a pre-commit revue of a fresh team extremity or conduct a review on the newly submitted code. You can conduct a reappraisal on incorporate code excessively, a action that Phabricator calls as “ audit ”. hera ’ s a comparison between a review and an audit on Phabricator .
Phabricator ’ s extra tools help you in the overall software development cycle. For example, it provides you with a built-in tracker to manage bugs and features. You can besides create a wiki for your software within the tool through Phriction. To integrate the cock with whole tests, you may use Phabricator ’ s CLI instrument. You can build applications over Phabricator through its API arsenic well .
In drumhead, Phabricator provides you with a short ton of features that help you in making your growth work more effective. It makes complete sense to opt for this tool if your project is in an early phase. If you do not have the expertness to set it up on your waiter, you should opt for the host adaptation of the creature .

5. Collaborator

collaborator by SmartBear is a peer code and document inspection tool for development teams. In accession to source code recapitulation, Collaborator enables teams to review design documents besides. A 5-user license clique is priced at $ 535 a year. A barren trial is available depending on your business requirements .
Code review tools: Collaborator Review
Collaborator supports a big total of translation control systems like Subversion, Git, CVS, Mercurial, Perforce, and TFS. It does a good job of integrating with democratic project management tools and IDEs like Jira, Eclipse, and ocular Studio .
This cock besides enables coverage and psychoanalysis of key metrics related to your code review process. furthermore, Collaborator helps in audit management and bug track deoxyadenosine monophosphate well. If your technical school push-down storage involves enterprise software and you need support to set up your code review procedure, you should give Collaborator a attempt .

6. CodeScene

CodeScene is a code review tool that goes beyond traditional inactive code analysis. It performs behavioral code psychoanalysis by including a temporal property to analyze the development of your codebase. CodeScene is available in two forms : a cloud-based solution and an on-premise solution .
CodeScene ’ s cloud-based plans start detached for populace repositories hosted on GitHub. For up to ten individual repositories and a team of ten members, CodeScene costs €99 ( about $ 115 ) per month. An on-premise initiation of CodeScene costs €15 ( about $ 17 ) per developer per calendar month .
Code review tools: CodeScene Code Review Tool Analysis
CodeScene processes your interpretation master history to provide code visualizations. In summation to this, it applies machine learning algorithms to identify social patterns and hide risks in code. Need a blazing-fast, impregnable, and developer-friendly hosting for your client sites ? Kinsta is built with WordPress developers in beware and provides enough of tools and a knock-down dashboard. Check out our plans Through the adaptation control history, CodeScene profiles ever team penis to map out their cognition establish and create inter-team dependencies. It besides introduces the concept of hotspots in your repository by identifying files that undergo the most growth activity. These hotspots require the highest attention going advancing .
CodeScene Knowledge Maps
If you are looking for a instrument that goes beyond a traditional, colloquial code reappraisal joyride, make certain to check out the absolve test of CodeScene. To learn more about the underlying logic behind CodeScene ’ s behavioral code analysis, check out this white paper on CodeScene ’ s use cases and roles .

7. Visual Expert

Visual Expert is an enterprise solution for code review specializing in database code. It has support for three platforms merely : PowerBuilder, SQL Server, and Oracle PL/SQL. If you are using any other DBMS, you will not be able to integrate Visual Expert for code reappraisal .
A free test is available, but you need to send a request to get a quote on its price .
Visual Expert Code Review Tool Overview
In addition to a traditional code review, Visual Expert analyzes each variety in your code to foresee any performance issues due to the changes. The tool can automatically generate complete documentation of your lotion from the code besides .
If you are using PowerBuilder, SQL Server, or Oracle PL/SQL and would like a specify code review tool for your needs, you should try out Visual Expert ( here is a guide on construct effective WordPress queries ) .

8. Gerrit

Gerrit is a free and open source web-based code review tool for Git repositories, written in Java. To run Gerrit, you need to download the informant code and run it in Java. here ’ s the initiation process for a standalone version of Gerrit .
Gerrit Code Review Tool
Gerrit combines the functionality of a bug tracker and a revue creature into one. During a review, changes are displayed slope by side in a unite diff, with the possibility to initiate a conversation for every line of code added. This instrument works as an average step between a developer and the central repository. additionally, Gerrit besides incorporates a vote arrangement .
If you possess the technical expertness to install and configure Gerrit, and you are looking for a loose code review creature, it should serve as an ideal solution for your projects .

9. Rhodecode

Rhodecode is a web-based creature that assists you in performing code reviews. It supports three adaptation control systems : Mercurial, Git, and Subversion. A cloud-based version of Rhodecode starts at $ 8 per user per calendar month, whereas an on-premise solution costs $ 75 per exploiter per class. While it is enterprise software, its community edition, which is absolve and open reference, can be downloaded and compiled free of charge .
Code review tools: Rhodecode
Rhodecode enables a team to collaborate effectively through iterative, colloquial code reviews to improve code quality. This cock additionally provides a level of permission management for fasten growth .
In addition, a ocular changelog helps you navigate the history of your project across diverse branches. An on-line code editor is besides provided for modest changes through the web interface .
Rhodecode integrates seamlessly with your existing projects, which makes it a great choice for person looking for a web-based code review tool. therefore, the residential district edition is ideal for those with technical foul expertness looking for a absolve and dependable code review tool .

10. Veracode

Veracode provides a cortege of code revue tools that let you automate testing, accelerate development, integrate a redress action, and improve the efficiency of your project. The suite of code review tools by Veracode is marketed as a security solution that searches for vulnerability in your systems. They provide a set of two code review tools :

  • Static Analysis: A tool that enables developers to identify and fix security flaws in their code.
  • Software Composition Analysis: A tool that manages the remediation and mitigation process of flaws in code.

Veracode Overview
Code review is a part of the Software Composition Analysis and you can opt for a demonstration of Veracode before committing fully to it. hera is the associate to request a quote .

11. Reviewable

Reviewable is a code review tool for GitHub wrench requests. It is spare for loose beginning repositories, with plans for private repositories starting at $ 39 per month for ten-spot users. Since the tool is integrated with GitHub, you can sign in using your GitHub account and get started .
Reviewable Code Review Tool Overview
If you would like to check out a typical review on Reviewable, you can head over to a show review .
One interesting thins about Reviewable is that it overcomes a few drawbacks of the code revue in GitHub ’ s pull requests sport. For example, a comment on a line of code is automatically hidden by GitHub once a developer changes the line because GitHub assumes that the offspring has been fixed. But, in world, things may be different .
besides, GitHub has relatively small wrinkle limits for displaying file diffs .
If you are looking for a tool tightly coherent with GitHub but would like more features than puff requests, Reviewable should be your go-to creature .

12. Peer Review for Trac

If you use Subversion, the Peer Review Plugin for Trac provides a free and open generator choice to conduct code reviews on your projects. The Peer Review Plugin integrates into the Trac open source project, which is a wiki and issue tracking system for development projects .
Peer Review Plugin for Trac Review
Trac integrates the wiki and exit tracker with your reviews to provide an throughout solution. While the basic functionality of comparing changes and conversation is available, the plugin lets you design customized workflows for your projects .
For case, you could decide tasks to be done on triggers like the submission of a change or approval in a code inspection. You can besides create custom reports on your projects .
If you are besides looking for a wiki for documentation and an consequence tracker to manage your undertaking ’ s roadmap, Trac should provide a good choice for you .
Code reappraisal tools will keep your project free of bugs and errors ❌ Find the best one for your team with this guidebook 🚀

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Summary

The code review process plays a samara function when it comes to boosting the efficiency of your organization. specifically, taking advantage of the proper code review tool is what helps you to remove redundancy in your development cycle .
We looked closer to the most popular code follow-up tools available in 2022 and here ’ s what we found :

  • For a small team just starting out, Review Board is a good choice to initiate the code review process.
  • If you are looking for an open-source code review tool, give Gerrit, Peer Review for Trac, or community edition of Rhodocode a try.
  • Are you looking for a fairly easy to use code review tool with support? You should try out Rhodecode.
  • If you use Git and GitHub to manage your codebase, give GitHub’s inbuilt code review editor a try. If you want to go beyond the basic features of pull requests, you should check out Reviewable.
  • Do you belong to a team that uses Oracle, SQL Server, or PowerBuilder for your database code management? You can try out Visual Expert, a code review tool that specializes in database code.
  • If you are looking for an enterprise solution, try out Atlassian’s Crucible, SmartBear’s Collaborator, or, Veracode.
  • In case you want to use ML and AI to go beyond code review into the behavioral analysis, you should check out CodeScene.
  • If you want a complete solution for your software development cycle, check out Phabricator’s suite of tools for code review and beyond.

immediately it ’ s your turn : what code follow-up tool are you using ? Why ? Tell us in the comments !

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