Local LLM Code Completion in VS Code with Ollama

by Priyanka Patel

For software developers, the promise of artificial intelligence has long centered on streamlining the coding process. Now, a growing number of tools are making that a reality, and increasingly, those tools are running directly on a developer’s machine. A key part of this shift involves leveraging Large Language Models (LLMs) for code completion, and a recent surge in interest surrounds using Ollama, a local LLM runner, with Visual Studio Code (VS Code). This approach to local LLM code completion offers a compelling blend of privacy and performance, keeping sensitive code offline while still benefiting from AI-powered suggestions.

Traditionally, code completion tools relied on cloud-based services. While effective, this meant sending code to remote servers for analysis, raising concerns for developers working with proprietary or confidential projects. Ollama changes that equation by allowing developers to download and run LLMs directly on their computers. This not only addresses privacy concerns but as well reduces latency, as the AI processing happens locally. The integration with VS Code, a widely used code editor, is facilitated by extensions like Continue, making the setup relatively straightforward.

What is Ollama and Why Use It?

Ollama is designed to simplify the process of running LLMs locally. According to Ollama’s documentation, it allows users to easily download, run, and manage various LLMs, including models like qwen3 and qwen3-coder. The benefit is significant: developers can access the power of AI without relying on an internet connection or sharing their code with third-party servers. This is particularly appealing for organizations with strict data security policies or developers working in environments with limited connectivity.

The appeal extends beyond security. Running LLMs locally can also lead to faster response times, as there’s no network latency involved. This can significantly improve the coding experience, making suggestions appear almost instantaneously. Local execution gives developers more control over the models they use and how they are configured.

Setting Up Ollama with VS Code

The process of integrating Ollama with VS Code involves a few key steps. First, developers demand to install VS Code itself. Then, they can install Ollama and download the desired LLM. The Continue extension acts as the bridge between VS Code and Ollama. As outlined in the Ollama documentation, users can access the Copilot sidebar within VS Code, select the model dropdown, and choose Ollama as the provider. From there, they can select the specific model they’ve downloaded, such as qwen3-coder:480b-cloud.

The documentation also highlights the user interface elements involved: the Open Copilot sidebar, the model dropdown, and the management of models directly within VS Code. This streamlined process makes it accessible even for developers who are new to LLMs.

Beyond Code Completion: The Expanding Capabilities of Local LLMs

While code completion is a primary use case, the potential of local LLMs extends far beyond simply suggesting code snippets. These models can be used for a variety of tasks, including generating documentation, translating code between languages, and even identifying potential bugs. The ability to run these models locally opens up possibilities for customized AI assistants tailored to specific development workflows.

Ollama’s integrations aren’t limited to VS Code. The platform also supports integration with other IDEs like JetBrains, Roo Code, and Xcode, as well as chat and RAG (Retrieval-Augmented Generation) applications. This broad compatibility suggests a growing ecosystem around local LLMs, with developers increasingly seeking ways to harness their power without compromising privacy or control.

Choosing the Right Model

Selecting the appropriate LLM is crucial for optimal performance. Models like qwen3 and qwen3-coder are specifically designed for coding tasks, offering better accuracy and relevance than general-purpose LLMs. The size of the model also plays a role, with larger models generally providing more sophisticated suggestions but requiring more computational resources. Developers need to consider their hardware capabilities and the specific requirements of their projects when choosing a model.

Ollama simplifies model management, allowing developers to easily switch between different models and experiment with various configurations. This flexibility is a key advantage of the platform, enabling developers to fine-tune their AI-assisted coding experience.

The rise of tools like Ollama represents a significant shift in the landscape of AI-assisted development. By bringing the power of LLMs directly to the developer’s machine, these platforms are empowering developers to write code more efficiently, securely, and creatively. As LLMs continue to evolve and hardware becomes more powerful, we can expect even more sophisticated and integrated AI tools to emerge, further transforming the way software is built.

Looking ahead, the Ollama team continues to refine the platform and expand its integrations. The next step will likely involve further optimization of model performance and the addition of new features to enhance the developer experience. Developers interested in exploring this technology can identify more information and resources on the Ollama website.

Have you experimented with local LLMs for code completion? Share your experiences and thoughts in the comments below.

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