Code Review in 2025: Practical Best Practices & 18 Tools That Actually Help
A developer‑to‑developer guide to faster, saner code reviews: common pitfalls, 7 battle‑tested habits, and 18 tools to plug into your workflow....

CTO @ Axolo
(Axolo doesn't have access to your code)
backed by
The most used GitHub Slack bot for code reviews
“Axolo improves greatly the collaboration between tech employees. It creates a frictionless experience between Slack and GitHub/GitLab. This soft spot between code review and usual communication is generaly a pain point in most entreprises. The bridge Axolo creates between the two helps me stay organized and focus.”
A good pull request process makes GitHub code reviews more efficient and effective. Axolo enhances this process by providing instant feedback, automating daily pull request reminders, and centralizing communication, ensuring timely reviews and better team collaboration. By minimizing delays, reducing context switching, and tailoring GitHub pull request notifications, Axolo keeps your team focused and your code quality high.
Waiting for GitHub code reviews can significantly delay your development process. With Axolo’s channel automation and daily GitHub PR reminders, your team is notified about pull request activity, ensuring reviews happen promptly and merge delays are minimized.
“I've been a CTO at various companies for a decade now. One of my biggest pain points has always been pull request review responsiveness. I've tried so many home baked solutions. Axolo is the app that solves the problem perfectly.”
Poor collaboration and siloed communication can lead to lost information and inefficiency. Axolo creates ephemeral Slack channels for each PR, keeping all discussions in one place and ensuring no context is lost, improving team collaboration.
“We used to send each other our GitHub PR links on Slack to ask for a review. Having Axolo made it a zero-effort thing. Having discussions on Slack is much more natural and Axolo does a great job doing it.”
Notification overload disrupts your team's focus and productivity. Axolo offers customizable GitHub pull request notifications and time slots, allowing your team to receive relevant updates on GitHub code reviews only when needed, preserving focus and reducing distractions.
“Our developers have really enjoyed the increased focus it brings, which is especially important as our team grows. As a fully remote organization using the correct communication tools is vital, and Axolo balances things nicely.”
Axolo has made it easier to hold developers and QA engineers accountable for reviewing and merging pull requests. Our average PR time-to-merge was 2.40 days before Axolo, this has been reduced to 1.51 days after only using it for 2 weeks.
Axolo centralizes the whole GitHub code review
inside an ephemeral Slack channel.
Old way
Axolo way
Axolo enhances GitHub code reviews & team collaboration by sending smart Slack notifications that keep teams focused. Set reminders for stale pull requests, receive filtered updates for CI/CD processes, and get daily summaries to keep everyone aligned during stand-ups.
Decide when you want your team to be reminded about stale pull requests. Our GitHub Slack bot sends daily notifications only if the pull request was not recently reviewed.
Passively receive updates for your branch conflict, pull request checks, GitHub Action, and deployments in their specific channel. Select only the status you'd like to receive (success, error, ...).
Set up Axolo to send daily PR recaps to specific channels to organize your stand-ups. Use these recaps to keep your team in the loop and accountable.
With team-specific notifications, Axolo will send new GitHub pull request notifications in team channels and update its content upon different actions such as a reviewer adding its review, or the PR status changed (draft, awaiting review, work in progress, mergeable, ...)
Organize your time with code review time slots and let our GitHub Slack Bot notify you only when you're available. Save your development sessions from distractions and stay focused while you code.
Proud to be working with high-performing engineering teams
Code quality has improved, engineers have a better understanding of what their colleagues are working on, and code is getting shipped much faster. Time from pull request open to review to merge is WAY faster, and engagement with reviews is much higher for our team. Axolo's team is also unbelievably fast in resolving issues when we run into them. Pleasure to work with them.
TylerCTO, Sproutfi
Been an early user & have not found anything else which comes close to improving our PR workflow. Love the way Axolo helps us maintain sanity across our pull request reviews & keeping the entire team on top of what needs their attention. In addition, I love the way the product has evolved over the past few months. The team listens to the customers & delivers above & beyond!
Akshay KatyalHead of Engineering, Backstage
Our developers have really enjoyed the increased focus it brings, which is especially important as our team grows. As a fully remote organization using the correct communication tools is vital, and Axolo balances things nicely.
Joe RowleyVP of Engineering, Curebase
Axolo is an incredible tool for connecting PRs with our everyday engineering discussion on Slack. It integrates seamlessly and makes it so as a manager, I never lose track of my engineers' work. For my engineers, it allows them to discuss and collaborate without losing a thread in different contexts. Overall it keeps us moving swiftly throughout the sprint and continuously reviewing and merging code!
JacobCTO, HeraldAPI
Axolo has made it easier to hold developers and QA engineers accountable for reviewing and merging pull requests on a timely basis. Our average PR time-to-merge was 2.40 days before Axolo, this has been reduced to 1.51 days after only using it for 2 weeks.
DanDirector of Infrastructure, House Rx
GitHub and Slack used to be communication silos for us - discussion about work would exist in one or the other and we'd lose shared context of the work being done. Not anymore!
Mark GoodheadCEO, Longshot Systems
Axolo is an amazing tool that helps to reduce context-switching. Before we installed it, we had to constantly switch between Slack and GitHub to interact with pull requests and provide/receive feedback on them.
DanCTO, Lambda Direct
We used to send each other our GitHub PR links on Slack to ask for a review. Having Axolo made it a zero-effort thing. Having discussions on Slack is much more natural and Axolo does a great job doing it. The support is amazing as well! Arthur and Sydney proactively reach out to ask if we're facing any issues and even released one feature request within hours!
Anubhav MalikCTO, Weekday
Axolo is a must-have for teams using GitHub. My team can discuss pull requests without leaving Slack now. Axolo helped us merge pull requests faster in a more seamless way. I have been waiting for this product for so long!
PawelCTO, Juo.io
I've been a CTO at various companies for a decade now. One of my biggest pain points has always been pull request review responsiveness. I've tried so many home baked solutions. Axolo is the app that solves the problem perfectly.
Dee EvansCTO, Staqfi
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CTO @ Axolo
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