8 Best AI Code Checker Tools To Consider in 2025

According to recent studies, software bugs cost the global economy over $300 billion every year. These bugs can be incredibly frustrating to deal with, often causing delays, confusion, and even system failures when they go undetected. Fortunately, advancements in AI have led to the development of a new generation of intelligent code checker tools that can help you identify issues early and enhance code quality. In this article, you’ll explore the 8 best AI code checker tools to help you save time, reduce errors, and make your development process smoother. Let’s get started!

8 Best AI Code Checker Tools To Try in 2025

1. Zencoder

Zencoder is an advanced AI-powered coding agent that enhances your software development lifecycle (SDLC) by boosting productivity, accuracy, and innovation. Zencoder uses its powerful Repo Grokking™ technology to deeply analyze your entire codebase. It uncovers structural patterns, architectural logic, and custom implementations, giving it a clear understanding of how your code works. With this insight, Zencoder provides highly accurate recommendations that make writing, debugging, and optimizing code much easier and more effective.

Additionally, Zencoder integrates with your existing development tools, supporting over 70 programming languages, including Python, Java, JavaScript, and more, and works effortlessly with popular IDEs like Visual Studio Code and JetBrains. Built with enterprise-grade security, Zencoder meets top industry standards like ISO 27001, GDPR, and CCPA, so your organization can scale with confidence and security.

Key Features:

1️⃣ Integrations – Zencoder seamlessly integrates with over 20 developer environments, simplifying your entire development lifecycle. This makes it the only AI coding agent offering this extensive level of integration.

2️⃣ Coding Agent – Say goodbye to tedious debugging and time-consuming refactoring. Our smart coding assistant helps you work faster and smarter across multiple files by:

• Quickly finding and fixing bugs, cleaning up broken code, and managing tasks seamlessly across your project.
• Automating repetitive or complex tasks with intelligent workflows that save you time and effort.
• Speeding up full app development so you can focus on the creative, high-impact work that truly matters.

3️⃣ Code Review Agent – Get targeted code reviews at every level, from full files to individual lines. Receive clear, actionable feedback to improve code quality, security, and best practice adherence.

4️⃣ Code Completion – Boost your coding speed with smart, real-time suggestions. It understands your context and provides accurate, relevant completions to reduce errors and keep you moving forward.

5️⃣ Chat Assistant – Get instant, accurate answers, personalized coding support, and intelligent recommendations to stay productive and keep your workflow smooth.

6️⃣ Code Generation – Accelerate development with clean, context-aware code generation. Automatically insert production-ready code into your project to ensure consistency, improve efficiency, and help you move faster.

7️⃣ Unit Test Generation – Automatically generate and run detailed unit tests with our AI-powered system. Ensure your code is reliable, accurate, and of the highest quality.

8️⃣ Zen Agents – Bring the power of Zencoder’s intelligence to your entire organization.

Zen Agents are customizable AI teammates that understand your code, integrate with your tools, and are ready to launch in seconds.

Here is what you can do:

• Build smarter – Create specialized agents for tasks like pull request reviews, testing, or refactoring, tailored to your architecture and frameworks.
• Integrate quickly – Connect to tools like Jira, GitHub, and Stripe in minutes with our no-code MCP interface, letting agents operate seamlessly within your existing workflows.
• Deploy instantly – Deploy agents across your organization with one click, with auto-updates and shared access to keep teams aligned and expertise scalable.
• Explore marketplace – Discover a growing library of open-source, pre-built agents ready to drop into your workflow. See what other developers are building, or contribute your own to help the community move faster.

9️⃣ Security treble – Zencoder is the only AI coding agent with SOC 2 Type II, ISO 27001 & ISO 42001 certification.

Pros and Cons:

🟢 Pros:

• Uses Repo Grokking™ for deep, context-aware code analysis and intelligent recommendations.
• Boosts team productivity with customizable Zen Agents that plug in instantly and automate key development tasks.
• Works across 70+ programming languages and 20+ environments, making enterprise-scale integration smooth and secure.

🔴 Cons:

• May lead to over-reliance on automation, potentially limiting long-term skill growth.

Pricing

Zendocer offers a Free Plan, a Business Plan that starts at $19 per user/month, and an Enterprise Plan starting at $39 per user/month.

2. Semgrep

Semgrep is an AI-powered application security platform that provides fast, customizable, and low-noise static analysis across code, dependencies, and secrets. It scans code for vulnerabilities using customizable, code-like rules and provides actionable insights directly in your workflows. Semgrep works with over 30 different frameworks and technologies, making it easy for security teams to catch common vulnerabilities, enforce security policies, and fix issues quickly across large codebases.

Key Features:

1️⃣ AI-powered triage and autofix – Uses GPT-4 to identify false positives and suggest verified fixes, reducing manual review and remediation time.

2️⃣ Deep dataflow analysis – Tracks data across functions and files to detect complex vulnerabilities, including tainted input reaching sensitive operations.

3️⃣ Security by design – Enforces secure coding practices and organization-specific rules to eliminate entire classes of vulnerabilities.

4️⃣ Contextual guidance – Provides explanations and recommendations to help you learn secure coding while fixing issues.

Pros and Cons:

🟢 Pros:

• Fast and lightweight for CI/CD use.
• Custom rules with simple syntax.
• Supports 30+ programming languages.

🔴 Cons:

• Can produce false positives/negatives.
• Takes time to learn rule writing.
• Limited support for complex code patterns.

Pricing

Semgrep offers 3 Paid Plans starting at $20 per month.

3. DeepSource

DeepSource is a unified DevSecOps platform that helps you ship clean, secure code by integrating static analysis, AI-powered Autofix™, and vulnerability detection directly into your workflow. It offers features like SAST, SCA, code quality checks, IaC security, and code coverage, all with minimal setup and native integration with GitHub, GitLab, Bitbucket, and Azure. Designed for fast-moving engineering teams, DeepSource supports modern workflows with zero-CI configuration, AI-driven fixes, and in-line pull request analysis.

Key Features:

1️⃣ Pull request insights – Displays issues directly in the pull request, helping developers identify problems instantly.

2️⃣ Quality and security enforcement – Blocks pull requests that don’t meet custom standards, ensuring consistent code quality and security.

3️⃣ New issue detection – Highlights only new issues in pull requests, allowing you to focus on what’s being introduced rather than existing problems.

4️⃣ Automated code formatting – Applies open-source code formatters automatically on each commit, maintaining clean code without interrupting development.

Pros and Cons:

🟢 Pros:

• Autofix saves time fixing bugs and code smells.
• Easy integration with GitHub, GitLab, and Bitbucket.
• Clean UI with customizable rule sets.

🔴 Cons:

• Too many alerts can feel overwhelming.
• Sometimes flags false positives.
• The free plan lacks support for private repos.

Pricing

DeepSource offers a Free Plan, 2 Paid Plans starting at $10 per month, and an Enterprise Plan with custom pricing.

4. Snyk

Snyk is a powerful AI-driven security platform that acts as an intelligent code checker, helping you find and fix vulnerabilities across your code, open source libraries, containers, and infrastructure as code. It integrates directly into your workflows, making it easy to catch issues early without slowing down the coding process. Additionally, Snyk combines advanced threat detection with risk-based prioritization to enhance productivity while reducing business risk.

Key Features:

1️⃣ Hybrid AI accuracy – Combines symbolic and generative AI with expert-reviewed models to ensure unmatched scanning precision without hallucinations.

2️⃣ AI-powered autofixes – Suggests safe, pre-validated code fixes directly in the IDE, enabling instant, one-click remediation.

3️⃣ Custom rule creation with AI – Uses DeepCode AI Search to help you write, test, and run custom vulnerability queries with autocomplete support.

4️⃣ Risk-based alerting – Surfaces high-impact issues first, helping teams focus on fixing what actually matters.

Pros and Cons:

🟢 Pros:

• Easy to integrate with developer tools like VS Code and CI/CD pipelines.
• Quickly detects and suggests fixes for vulnerabilities in code and open-source libraries.
• Clean, user-friendly interface that’s easy to navigate.

🔴 Cons:

• Occasionally flags false positives, which can waste developer time.
• Advanced policy customization can be tricky to configure.
• New users may face a learning curve when utilizing all the features.

Pricing

Snyk offers a Free Plan, a Team Plan starting at $25 per month, and an Enterprise Plan with custom pricing.

5. Codiga

Codiga is a static code analysis and automated code review platform that helps you write cleaner, more secure, and efficient code. It integrates seamlessly with popular IDEs, such as Visual Studio Code, JetBrains IDEs, and Visual Studio, as well as CI/CD pipelines, to detect code quality issues, security vulnerabilities, and enforce coding standards in real-time. Codiga supports over 18 programming languages, including Java, Python, and JavaScript, and offers customizable rulesets and real-time feedback to streamline the development process.

Key Features:

1️⃣ Real-time analysis – Instantly analyzes code and suggests fixes directly in your IDE, helping you catch issues as you code.

2️⃣ Custom rule creation – Allows you to design, test, and share static code analysis rules from your browser in under five minutes.

3️⃣ Automated security fixes – Identifies and fixes vulnerabilities like leaked secrets and OWASP top 10 issues automatically within your IDE.

4️⃣ Fast code reviews – Delivers code review feedback in seconds using 1800+ rules across multiple languages, streamlining your review process.

Pros and Cons:

🟢 Pros:

• Real-time code analysis in IDEs like VS Code and JetBrains.
• Custom rules and reusable snippets for faster dev.
• Supports OWASP & CWE standards for secure coding.

🔴 Cons:

• Steeper learning curve for new users.
• It may slow down IDE performance.
• Limited support for niche languages and tools.

Pricing

Codiga doesn’t disclose any pricing plans on its website.

6. GitHub Copilot

GitHub Copilot is an AI-powered coding assistant that helps you write, test, and review code more efficiently by providing real-time suggestions, explanations, and automation through integration with popular IDEs and GitHub itself. With advanced features like agent mode and support for multiple AI models, Copilot streamlines software development by acting as a collaborative coding partner. It helps maintain high code quality by detecting bugs, proposing improvements, and validating changes across your codebase before they’re merged.

Key Features:

1️⃣ Agent mode – Analyzes code, proposes edits, runs tests, and validates results across multiple files to enable large-scale changes efficiently.

2️⃣ Next edit suggestions – Highlights the ripple effects of code changes across your project, helping maintain consistency.

3️⃣ Automated code review – Reviews code to uncover bugs, fix mistakes, and improve quality before human review.

4️⃣ Issue handling – Automatically plans, writes, tests, and submits pull requests for assigned issues using GitHub Actions.

Pros and Cons:

🟢 Pros:

• Fast code suggestions for common patterns.
• Great for learning with inline examples.
• Supports many languages and frameworks.

🔴 Cons:

• Suggestions can be wrong or insecure.
• Inconsistent quality on less popular languages.
• Risk of copying licensed code.

Pricing

GitHub Copilot offers a Free Plan and 2 Paid Plans starting at $10 per month for individuals.

For businesses, GitHub Copilot offers 2 Paid Plans starting at $19 per month.

7. Amazon Q Developer

Amazon Q Developer is a generative AI–powered assistant that accelerates the entire software development lifecycle by providing intelligent code suggestions, documentation, testing, and upgrades. It integrates with popular IDEs, command line tools, the AWS Console, and chat platforms like Slack and Microsoft Teams, offering intelligent code suggestions, debugging, and architectural guidance. Amazon Q also autonomously reviews, refactors, and transforms code to enforce best practices and improve code quality.

Key Features:

1️⃣ Code explanation – Understand unfamiliar code by asking Amazon Q to explain program logic directly in your IDE.

2️⃣ Automated code reviews – Detect logical errors, anti-patterns, and vulnerabilities instantly to improve code quality and speed up development.

3️⃣ Security scanning – Identify hidden security issues, such as exposed credentials and log injection, with one-click remediation suggestions.

4️⃣ Unit test generation – Automatically create unit tests for existing code bases to boost test coverage and development confidence.

Pros and Cons:

🟢 Pros:

• Boosts productivity with smart code suggestions.
• Integrates well with VS Code and JetBrains.
• Supports many languages like Python, Java, Go, and more.

🔴 Cons:

• Only supports English for chat.
• Sometimes gives inaccurate or off-topic responses.
• CLI features are limited on Windows.

Pricing

Amazon Q Developer offers a Free Plan and a Pro Plan starting at $19 per month.

8. Qodo

Qodo is an AI-powered code integrity platform that assists with writing, testing, and reviewing code by integrating deeply into the development workflow. It features agentic tools like Qodo Gen for code and test generation, and Qodo Merge for smart, context-aware code reviews directly in pull requests. With its emphasis on security, code quality, and automation, Qodo streamlines software development while enhancing efficiency and reducing bugs.

Key Features:

1️⃣ Context-aware suggestions – Delivers smart, line-level code suggestions based on your codebase and past accepted changes, reducing noise and increasing review precision.

2️⃣ Automated workflows – Enables manual or automatic code reviews with customizable triggers, streamlining the review process and saving time.

3️⃣ AI-powered PR chat – Allows private, threaded conversations directly in pull requests, providing intelligent, line-specific insights and faster issue resolution.

4️⃣ Code compliance and quality checks – Automatically detects bugs, untested code, and security issues while ensuring code meets ticket requirements and team standards.

Pros and Cons:

🟢 Pros:

• Automates up to 80% of code review tasks.
• Enforces consistent code quality and standards.
• Works with GitHub, GitLab, Bitbucket, and many languages.

🔴 Cons:

• Takes time to set up and learn.
• Sometimes flags valid code.
• May be excessive for smaller-scale or less complex projects.

Pricing

Qodo offers a Free Plan, a Teams Plan starting at $38 per month, and an Enterprise Plan with custom pricing.

To Wrap Things Up

Now that you’ve explored the 8 best AI code checker tools for 2025, it’s time to decide which one aligns best with your development goals. If you need powerful static analysis and real-time code quality enforcement, tools like DeepSource and Qodo excel at catching bugs, code smells, and security issues before they reach production. For more context-aware, intelligent code suggestions, GitHub Copilot provides a deep understanding of the codebase, which boosts both accuracy and speed. However, if you want an all-in-one tool that ensures clean and secure code, Zencoder is the perfect choice for you!

With Zencoder, you can:

⚡ Catch hidden logic flaws and architectural inconsistencies before they become bugs, using deep analysis across your entire codebase.

⚡ Instantly review and validate new code changes for security risks, style violations, and missed edge cases—line by line or across entire files.

⚡ Automatically enforce coding standards and best practices across teams, ensuring every pull request meets quality benchmarks before merging.

Sign up today to see how our powerful AI features can help you write secure, high-quality code with confidence.