Best AI Coding Assistants

The default choice — runs inside VS Code, JetBrains, and Neovim, and the free tier is enough to find out if AI completion sticks for you.

Your AI pair programmer

The strongest all-in AI editor right now: repo-aware tab completion plus an agent mode that handles multi-file edits.

The AI-native code editor that ships.

Best for agentic work from the terminal — hand it a whole task and it reads, edits, and runs your codebase on its own.

Anthropic’s deep-context AI coder

The best genuinely free option — autocomplete and chat that plug into virtually any IDE.

Free AI code autocomplete and chat for any IDE.

Pick this on a large codebase — whole-repo context beats file-scoped assistants for cross-cutting changes.

Code-aware AI assistant that knows your whole repo.

The compliance-friendly pick — privacy-first completion for teams that can't send code to a shared model.

Privacy-first AI code completion for dev teams.

Not a copilot but an autonomous engineer you assign tickets to; best for well-scoped, boring work.

Cognition Labs' autonomous AI software engineer.

Open-source pair programming in your terminal — bring your own model key and it commits as it goes.

AI pair programming in your terminal, fully open source.

The open-source, model-agnostic route: wire whatever LLM you want into VS Code or JetBrains.

Open-source AI code assistant for VS Code and JetBrains.

An agent-first assistant to try when inline suggestions feel too shallow for multi-step tasks.

The AI coding agent

Open-source VS Code agent in the Cline/Roo lineage — agentic edits with whichever model you plug in.