10 Best AI Coding Extensions for VS Code in 2026

The best AI coding extensions for VS Code depend on whether you need inline completion, an autonomous agent, local models, or an enterprise service. The 10 current options below were selected for active Marketplace availability, a clearly identified publisher, a useful VS Code workflow, and a documented way to access the service as of August 2, 2026.

AI extensions can send prompts, source code, file context, and tool output to a model provider. Agent extensions may also edit files and run terminal commands. Review the Marketplace publisher, provider privacy policy, approval controls, and pricing before using one with private code.

Quick comparison

1. GitHub Copilot

Marketplace: GitHub Copilot by GitHub

GitHub Copilot is deeply integrated with current VS Code releases and provides inline suggestions, chat, next edit suggestions, and agents. VS Code can activate Copilot Free from the Copilot menu, while paid individual and organization plans add larger allowances and more features.

Choose it for the shortest setup path and the most direct integration with VS Code. Individual Copilot interactions may be used for model training unless you opt out in GitHub Copilot settings, so review that policy before using private code.

Learn how to set up Copilot Free, use inline suggestions, or add chat context.

2. Windsurf Plugin

Marketplace: Windsurf Plugin by Codeium

The Windsurf Plugin provides inline completion, chat, and code search in VS Code. Its Marketplace listing describes the plugin as free and offers unlimited single-line and multiline completions.

Choose it when inline completion is the priority. The plugin is not the full Windsurf Editor, and code used by its cloud features leaves VS Code for processing under Windsurf's service terms.

3. Continue

Marketplace: Continue by Continue

Continue is an Apache-licensed extension with agent, chat, edit, and autocomplete workflows. It can connect to hosted providers or a local model server, which makes it useful when you want to choose the model and configuration.

The extension is free, but hosted API usage can still cost money. A local model avoids sending prompts to a hosted model provider only when the rest of your configuration and enabled tools also stay local.

4. Amazon Q Developer

Marketplace: Amazon Q Developer by Amazon Web Services

Amazon Q Developer provides inline suggestions, chat, agentic code changes, command execution, and MCP support. Sign in with an AWS Builder ID for the free tier, or use your organization's single sign-on for Amazon Q Developer Pro.

Choose it for AWS-heavy projects or for an official free coding assistant. Agent actions can read files, generate diffs, and run commands, so review each proposed action and AWS data-handling terms.

5. BLACKBOX AI

Marketplace: BLACKBOX AI by Blackboxapp

BLACKBOX AI provides an agent that can read project context, edit files, run commands, and orchestrate multiple models or coding agents. Its Marketplace listing offers account setup without an API key or credit card.

Choose it when comparing or coordinating several agents is more important than simple autocomplete. Its broad file, terminal, web, and model access also creates a larger permission surface, so keep approval controls restrictive and check the service's current limits and product terms.

6. Kilo Code

Marketplace: Kilo Code by kilocode

Kilo Code is an Apache-licensed coding agent with code generation, autocomplete, task automation, multiple modes, and MCP support. It connects to a large model catalog through Kilo services and supports configurable model workflows.

Choose it when you want an open-source agent with provider flexibility. The extension is open source, but model access and gateway usage may cost money, and terminal or MCP tools can reach resources beyond the editor.

7. CodeGPT

Marketplace: CodeGPT by DanielSanMedium

CodeGPT combines agent mode, chat, autocomplete, diff review, hosted credits, bring-your-own-key providers, and local models through Ollama or LM Studio. It is useful when you want to switch providers without switching extensions.

Costs and privacy depend on the selected route. Hosted credits use CodeGPT services, own keys send data to the chosen provider, and local-model privacy applies only when no cloud provider or external tool receives the context.

8. Claude Code

Marketplace: Claude Code by Anthropic

Claude Code can explore a codebase, edit files, and run terminal commands with permission. It understands the active file and selection, and it supports agent features such as subagents, commands, and MCP, although some configuration still uses the CLI.

It requires VS Code 1.98 or later and an eligible Claude Pro, Max, Team, or Enterprise subscription, or pay-as-you-go usage. Choose it if your workflow already uses Claude and you want an agent closely connected to the editor and terminal.

9. Codex

Marketplace: Codex by OpenAI

Codex adds a VS Code panel for chat, edits, and change previews. It can use open files and selected code as context, and it can delegate larger tasks to Codex in the cloud for later review in the IDE.

The extension requires a supported ChatGPT Plus, Pro, Business, Edu, or Enterprise account. Choose it if Codex is already included in your ChatGPT plan and you want both interactive IDE work and cloud delegation.

10. Gemini Code Assist

Marketplace: Gemini Code Assist by Google

Gemini Code Assist provides chat, code completion, generation, debugging help, and source citations in VS Code. Google offers a free edition for individuals and paid Standard and Enterprise editions for organizations.

Choose it for a Google-supported free entry point or a Google Cloud workflow. Availability, data governance, and quotas differ between the individual and business editions, so sign in with the account type that matches the project.

Choose one safely

Start with one extension that matches the main task:

• For the closest VS Code integration, choose GitHub Copilot.
• For free inline completion, compare Windsurf Plugin, Gemini Code Assist, and Amazon Q Developer.
• For local-model configuration, compare Continue and CodeGPT.
• For agent work tied to an existing provider plan, compare Claude Code and Codex.
• For multi-model agent workflows, compare BLACKBOX AI and Kilo Code.

Keep only one inline completion provider enabled at a time. Before allowing an agent to edit files or run commands, use a trusted workspace, inspect the requested permissions, protect secrets, and review the resulting diff and tests.