Blog | Zencoder – The AI Coding Agent

Top 9 Tabnine Alternatives for 2025 [Free & Paid]

Written by Sergio | Jul 9, 2025 12:04:42 PM

Are you looking for an AI coding assistant that outperforms Tabnine? While Tabnine is widely used for its quick code suggestions and strong privacy features, many users report issues such as high memory usage, glitchy performance, and occasionally incorrect suggestions. That’s why we created a list of tools that can offer better accuracy, smoother integration, and smarter code completions tailored to your development needs. In this article, we’ll explore 9 top Tabnine alternatives to help you write cleaner code and boost productivity!

9 Best Tabnine Alternatives to Consider in 2025

Before we dive deeper into our picks, here is an overview of what awaits you:

Tool Best Use Case Code Intelligence & Features IDE Compatibility AI Agents Code Review Capabilities Security Technology AI Testing Pricing
Zencoder Enterprise-grade full-stack AI Deep repo grokking, Zentester, Zen Agents VS Code, JetBrains, 20+ IDEs ✅ Zen Agents ✅ PR & inline reviews ✅ SOC 2 Type II, ISO 27001 & 42001 ✅Repo Grokking™, Zen Agents for CI ✅ Zentester auto-testing Free; $19–$119/user/mo
aiXcoder Lightweight IDE companion with offline support Code completion, generation, defect detection, semantic search Popular IDEs (unspecified) ⚠️ Not specified Semantic search, lightweight model ⚠️ Basic issue detection Not disclosed
Visual Studio IntelliCode Native AI in Visual Studio ecosystem Whole-line completion, IntelliSense, refactoring Visual Studio, VS Code ⚠️ Refactor assist ✅ Microsoft ecosystem Trained on GitHub data Free
Qodo Automated code integrity platform AI review, test gen, code gen, agentic CLI IDEs, Git platforms, terminal ✅ Agentic CLI ✅ Automated reviews ⚠️ Team-controlled pipeline Agentic CLI, workflows ✅ Suggestion-based tests Free; Teams $38+/mo; Enterprise custom
Sourcegraph Cody Context-aware search & inline edits Auto-edit, LLM selection, in-line chat VS Code, GitHub ✅ Cody Agents ✅ Inline suggestions ⚠️ Not detailed LLM-based, universal context ⚠️ Prompt-based only $19+/mo
GitHub Copilot Fast suggestions in GitHub ecosystem Context-aware code gen, boilerplate, refactoring VS Code, JetBrains, Codespaces ⚠️ Partial suggestions ⚠️ Depends on model/source OpenAI Codex, GitHub API Free; $10–$19+/mo
JetBrains AI Assistant JetBrains suite power users Inline docs, smart fixes, test gen, AI chat JetBrains IDEs ⚠️ Limited feedback ✅ Local/cloud model choice Native LLM interface ✅ Unit test generation Free; €10–€20+/mo
Cursor VS Code–native AI editing Multi-line edits, Agent Mode, retrieval-powered context Native VS Code ✅ Agent Mode ✅ Inline suggestions ⚠️ Privacy-focused claims Context-aware retrieval engine ⚠️ Manual test prompting Free; $20–$40/user/mo
Windsurf AI-native IDE for full-stack web apps Cascade AI, live preview, multi-line generation Windsurf IDE (custom) ✅ Full IDE agents ✅ Real-time feedback ⚠️ Not specified Live IDE, agent-based dev ✅ Visual & flow-based testing Free; $15+/mo

1. Zencoder

Zencoder is an AI-powered coding agent that enhances the software development lifecycle (SDLC) by improving productivity, accuracy, and creativity through advanced artificial intelligence solutions.  Powered by its advanced Repo Grokking™ technology, Zencoder deeply analyzes your entire codebase, uncovering structural patterns, architectural logic, and custom implementations. This deep, context-aware understanding enables Zencoder to provide precise recommendations, significantly improving code writing, debugging, and optimization.

Zencoder integrates with your existing development tools and supports over 70 programming languages, and works effortlessly with popular IDEs like Visual Studio Code and JetBrains

With the powerful Coding Agent feature, Zencoder makes debugging and complex refactoring a breeze. This intelligent assistant helps you move faster and work smarter across multiple files by:

  • Quickly identifying and fixing bugs, cleaning up broken code, and smoothly managing tasks across your entire project.
  • Automating repetitive or complex workflows to save time and reduce effort.
  • Speeding up full app development so you can stay focused on the creative, high-impact work that matters most.

Key Features:

1️⃣ Integrations – Zencoder integrates with over 20 developer environments, streamlining the entire development lifecycle. This makes it the only AI coding agent offering this depth of integration.

2️⃣ Code Completion – Boost your coding speed with smart, real-time suggestions. It understands your context and delivers accurate, relevant completions to reduce errors and keep you moving forward.

3️⃣ Zentester – Automate testing with AI at every level, so your team can catch bugs early and ship high-quality code faster. Just describe what you want to test in plain English, and Zentester takes care of the rest, adapting as your code evolves.

Here is what it does:

  • Our intelligent agents understand your app and interact naturally across the UI, API, and database layers.
  • As your code changes, Zentester automatically updates your tests, eliminating the need for constant rewriting.
  • From individual unit functions to full end-to-end user flows, every layer of your app is thoroughly tested at scale.
  • Zentester’s AI identifies risky code paths, uncovers hidden edge cases, and generates tests based on how real users interact with your app.

4️⃣ Code Review Agent – Get precise code reviews at any level, whether it's a full file or a single line. Receive clear, actionable feedback to improve code quality, security, and alignment with best practices.

5️⃣ Chat Assistant – Instantly get accurate answers, personalized coding help, and smart suggestions to boost your productivity and keep your work flowing smoothly.

6️⃣ Zen Agents – 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.

7️⃣ 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™ to deeply understand your code and provide smart, context-aware suggestions.
  • Supports 70+ languages and 20+ environments for seamless, secure enterprise-scale integration.

🔴 Cons:

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

Pricing

Zencoder offers a Free Plan, a Starter Plan (free for 2 weeks) that starts at $19 per user/month, a Core Plan starting at $49 per user/month, and an Advanced Plan starting at $119 per user/month.

2. aiXcoder

aiXcoder is an AI-powered coding assistant that supports you throughout the software development lifecycle by enhancing coding efficiency and overall code quality. Compatible with multiple programming languages and popular IDEs, it provides intelligent suggestions and development tools, with options for customization, private hosting, and integrated team productivity solutions.

Key Features:

1️⃣ Code completion – Provides real-time, context-aware code suggestions to accelerate development and reduce syntax errors.

2️⃣ Code generation – Transforms natural language prompts or minimal input into complete, functional code blocks, streamlining boilerplate and repetitive tasks.

3️⃣ Defect detection and repair – Automatically identifies and resolves common code issues, enhancing code quality and developer confidence.

4️⃣ Intelligent code search – Uses semantic understanding to locate relevant code snippets, functions, or patterns across large codebases quickly and efficiently.

Pros and Cons:

🟢 Pros:

  • Efficient, lightweight model with strong long-context support.
  • Clean IDE integration with offline capability.

🔴 Cons:

  • Weaker suggestions than larger models.
  • May occasionally lag with large projects or complex codebases.

Pricing

aiXcoder doesn’t disclose any pricing information on its website.

3. Visual Studio IntelliCode

Visual Studio IntelliCode is an AI-assisted coding tool that enhances productivity by providing whole-line code completions and intelligent suggestions based on your context and coding habits. It boosts accuracy and consistency while also supporting repetitive code refactoring and smart, quick actions across multiple languages in Visual Studio and Visual Studio Code.

Key Features:

1️⃣ Whole-line code completion – Offers full-line AI-assisted suggestions by analyzing code context, variable names, and functions to boost speed and accuracy.

2️⃣ Context-aware IntelliSense – Prioritizes the most relevant code completions by learning from thousands of open-source GitHub projects and user-defined patterns.

3️⃣ Refactoring automation – Detects repeated code changes and applies consistent edits across similar patterns, streamlining refactoring tasks.

4️⃣ Quick action recommendations – Suggests and executes common coding actions like generating constructors or adding parameters as you type.

Pros and Cons:

🟢 Pros:

  • Smart, context-aware code suggestions.
  • Learns from your codebase for tailored help.

🔴 Cons:

  • Can slow down IDE performance.
  • Limited support for some languages.

Pricing

Visual Studio IntelliCode is completely free with no subscription fees or license costs.

4. Qodo

Qodo is an AI-powered code integrity platform that helps you write, test, and review high-quality code through intelligent, context-aware agents integrated across IDEs, Git platforms, and terminals. With powerful tools like Qodo Command, it brings agentic workflows to the command line, enabling seamless automation throughout the software development lifecycle.

Key Features:

1️⃣ Code review – Enhances code review automation with intelligent, scalable checks across your codebase, ensuring consistency and best practices with minimal manual input.

2️⃣ Code generation – Generates high-quality, context-aware code to speed up development while reducing human error and repetitive tasks.

3️⃣ Testing – Enhances meaningful test coverage through intelligent suggestions and automation, increasing code reliability and stability.

4️⃣ Refactoring – Performs smart, automated code restructuring to boost maintainability, readability, and long-term scalability.

Pros and Cons:

🟢 Pros:

  • Saves time by handling tests & reviews.
  • Deep, context-aware IDE integration.

🔴 Cons:

  • Requires setup time and team tuning.
  • May feel slow and produce occasional false flags.

Pricing

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

5. Sourcegraph Cody

Sourcegraph Cody is an AI coding assistant that enhances productivity by combining intelligent code search, AI chat, and powerful in-line editing within your existing IDE. It helps teams maintain consistency and quality across large codebases by leveraging shared prompts, contextual understanding, and integrations with both code and non-code tools.

Key Features:

1️⃣ Auto-edit – Offers real-time, context-aware autocomplete based on your personal coding history to suggest precise edits near your cursor.

2️⃣ Agentic chat – Delivers intelligent, self-directed assistance that gathers and updates context to give highly accurate responses to your development needs.

3️⃣ In-line edits – Enables seamless code fixing, editing, and refactoring through direct in-editor commands for a more efficient workflow.

4️⃣ LLM selection – Empowers you to choose from the latest and most powerful large language models, tailoring performance to your specific goals or constraints.

Pros and Cons:

🟢 Pros:

  • Fast, context-aware code suggestions in your IDE.
  • Boosts productivity with smart automation.

🔴 Cons:

  • Can be slow on large codebases.
  • Sometimes gives irrelevant suggestions.

Pricing

Sourcegraph Cody offers 2 Paid Plans starting at $19 per month.

6. GitHub Copilot

GitHub Copilot is an AI-powered coding assistant that integrates directly into your development environment to help you write and improve code more efficiently. It excels at understanding your project’s context, offering intelligent suggestions, automating repetitive tasks, and streamlining the entire development workflow for faster, higher-quality results.

Key Features:

1️⃣ Context-aware code suggestions – Analyzes your existing code to provide intelligent, relevant completions that align with your project’s structure and logic.

2️⃣ Automated coding assistance – Copilot can write boilerplate code, generate functions, and handle repetitive tasks, reducing manual effort.

3️⃣ Integrated code improvements – Helps review, refactor, and debug code by suggesting changes and identifying potential issues before you commit.

4️⃣ Multi-model support – Lets you switch between various leading AI models to balance speed, depth, and accuracy for different tasks.

Pros and Cons:

🟢 Pros:

  • Speeds up coding with smart suggestions.
  • Great for learning and boosting productivity.

🔴 Cons:

  • Sometimes generates insecure or faulty code.
  • May introduce security vulnerabilities in 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. JetBrains AI Assistant

JetBrains AI Assistant is an intelligent coding tool built directly into JetBrains IDEs and other editors, offering smart code completion, automated documentation, unit test generation, and context-aware AI chat to boost productivity. It supports both cloud and local models, ensures strong data privacy, and enhances the entire development workflow, from code generation to version control, without compromising security or customization.

Key Features:

1️⃣ AI quick-fixes – Enhances JetBrains IDE inspections with context-aware suggestions for smarter, tailored code corrections.

2️⃣ AI chat – Enables conversational interaction with your codebase for insights, file discovery, and real-time documentation support.

3️⃣ Code generation – Produces relevant code snippets from natural language prompts directly within the editor.

4️⃣ Inline documentation – Automatically generates documentation for code declarations using contextual analysis.

Pros and Cons:

🟢 Pros:

  • Seamless integration with JetBrains IDEs.
  • Great for refactoring, docs, and test generation.

🔴 Cons:

  • Can produce generic answers and lose context.
  • Sometimes slow with noticeable lag.

Pricing

For individuals, JetBrains AI Assistant offers a Free Plan and 4 Paid Plans starting at €10.00 per month.

For organizations, it offers a Free Plan and 5 Paid Plans starting at €20.00 per month.

8. Cursor

Cursor is an AI-powered code editor that deeply integrates with your codebase, enabling natural language edits, instant code suggestions, and seamless navigation across files and docs. Its intuitive design, speed, and privacy-focused options make it a compelling choice for developers seeking a smarter, more efficient coding experience.

Key Features:

1️⃣ Multi-line edits – Suggests and applies multiple code changes simultaneously to accelerate development workflows.

2️⃣ Smart rewrites – Automatically corrects careless typing or syntax errors to improve code quality and reduce manual fixes.

3️⃣ Agent mode – Executes end-to-end coding tasks based on natural language instructions, keeping you in control throughout the process.

4️⃣ Inline edit – Enables in-context code modification or generation using AI-powered prompts triggered by keyboard shortcuts.

Pros and Cons:

🟢 Pros:

  • Smooth AI coding in a VS Code-like interface.
  • Great for fast multi-file edits and code generation.

🔴 Cons:

  • Can lag or struggle with large projects.
  • Sometimes gives outdated or wrong code.

Pricing

For Individuals, Cursor offers a Free Plan and 2 Paid Plans starting at $20 per month.

For teams, it offers a Teams Plan starting at $40 per month, as well as an Enterprise Plan with custom pricing.

9. Windsurf

Windsurf is an AI-native code editor that keeps you in a seamless flow state by deeply integrating intelligent features like full-context awareness, live previews, and instant deployment. Its agentic IDE and real-time AI collaboration tools enable faster, smarter software development that goes far beyond autocomplete.

Key Features:

1️⃣ Cascade – Combines deep codebase understanding and real-time user awareness to deliver highly contextual code suggestions and collaborative development.

2️⃣ Windsurf Tab – Enables rapid, multi-line code generation with a single keystroke, accelerating development and reducing manual coding.

3️⃣ Live preview and deploy – Allows developers to see real-time website updates, edit UI elements directly, and deploy without leaving the IDE.

4️⃣ Agentic IDE architecture – Integrates AI into the development environment for intelligent assistance beyond traditional plugins.

Pros and Cons:

🟢 Pros:

  • Context-aware AI with multi-file understanding.
  • Offers advanced chat, completions, and code refactoring.

🔴 Cons:

  • Occasional server issues and timeouts.
  • Steeper learning curve.

Pricing

Windsurf offers a Free Plan and 3 Paid Plans starting at $15 per month.

Conclusion

Now that we’ve explored the 9 best Tabnine alternatives, it’s time to choose the one that aligns best with your development workflow, goals, and team setup. If you’re looking for simple code completions and smart suggestions, tools like GitHub Copilot and aiXcoder are great picks. For deeper IDE integration and intelligent code navigation, JetBrains AI Assistant and Sourcegraph Cody deliver strong performance. However, if you are searching for an all-in-one AI agent that encompasses everything from code generation and testing to debugging and reviews, Zencoder is the perfect choice!

Try Zencoder for free and transform your development workflow!