Best Code Completion Tools

Amazon Q Developer

4.4 rating

Amazon Q Developer (formerly AWS CodeWhisperer) is Amazon's AI-powered coding assistant with real-time code suggestions, deep AWS expertise, vulnerability scanning, unit test generation, and agentic capabilities. It integrates with all major IDEs and provides the highest reported code acceptance rate among AI coding tools.

Cursor

4.7 rating

Cursor is the AI-first code editor built for extraordinary developer productivity. It features context-aware autocomplete, repo-aware chat, agentic refactoring, multi-model support (OpenAI, Claude, Gemini), cloud agents, and team collaboration — giving developers a purpose-built environment to build software with AI at its core.

GitHub Copilot

4.5 rating

GitHub Copilot is your AI pair programmer that suggests whole lines or entire functions as you code. It integrates with all major IDEs and editors, supports multiple leading AI models (Claude, GPT-4, Gemini), and offers chat, agent mode, code review, CLI assistance, and agentic workflows — helping developers write code up to 55% faster.

Tabnine

4.4 rating

Tabnine is the enterprise-grade AI code assistant that accelerates software development while keeping your code private, secure, and compliant. It offers single and multi-line completions, IDE chat, agentic workflows, and flexible deployment options including SaaS, VPC, on-premises, and air-gapped environments — with zero code retention.