Best IDE Extensions in 2026

One AI coding agent for your IDE, desktop and pull requests • AI coding agent and PR reviewer that picks the right model • Write, review and ship code with one cost-aware AI agent.

Key ML.ai features:

Four surfaces, one agent Cost-aware model routing Four focused agents Diff-first approvals

Create ai humanized SEO content tailored for ecommerce and small businesses with HappySEO tools. From ai writer to keyword research and analyze tools.

Key happySEO features:

Humanize AI Writing AI SEO Keywords Local AI SEO SEO Tracking

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Codex is a VS Code extension that allows any engineer to attach comments, questions or any kind of content to specific lines of code.

Key Codex​​ features:

Ease of Use Increased Productivity Versatility Learning Aid

The fastest way to build ML-powered applications.

Key BaseTen features:

User-Friendly Interface Integration with Popular Tools Collaboration Features End-to-End Solution

Use state-of-the-art, open-source LLMs and image models at blazing fast speed, or fine-tune and deploy your own at no additional cost with Fireworks AI!

Key Fireworks AI features:

User-Friendly Interface Advanced AI Tools Customization Options Integration Capabilities

The smartest way to understand engineering teams.

Key Entelligence.ai features:

User Interface Advanced Analytics Customization Integration Capability