Best AI code editors and IDE extensions
Prefer to stay in an editor? These tools put completions, inline edits and agents inside an IDE, either as a full editor or as an extension for the one you already use.
Ranked by score on our 100-point rubric (how we score). Scores are initial editorial estimates from public information, not hands-on tests. Pricing is labeled verified (checked on the vendor's official pricing page, with date) or unverified.
Quick picks
| # | Tool | Tier | Score |
|---|---|---|---|
| 1 | Cursor AI-first code editor | S | 88 |
| 2 | GitHub Copilot AI pair programmer and coding agent in GitHub | A | 83 |
| 3 | Cline Open-source autonomous coding agent for VS Code | A | 80 |
| 4 | Zed Fast native editor with AI agents | A | 71 |
| 5 | Kiro Spec-driven agentic IDE from AWS | B | 67 |
The ranking
-
VS Code-based editor with tab completion, inline edits and background/cloud agents across many models.
- Best for
- You want an AI IDE that feels like VS Code with agents built in.
- Skip it if
- You prefer staying in JetBrains or the terminal.
- Pricing
- Free Hobby tier; paid Pro plan unverified editorial summary, not yet confirmed on an official pricing page
- Platforms
- Mac · Win · Linux · CLI
-
Completions, chat and an asynchronous coding agent that opens PRs, across VS Code, JetBrains and GitHub.
- Best for
- Your team lives on GitHub and wants low-friction AI everywhere.
- Skip it if
- You want the most aggressive autonomous agent.
- Pricing
- Free tier; paid Pro plan unverified editorial summary, not yet confirmed on an official pricing page
- Platforms
- IDE extension · web · CLI
-
Open-source agent extension that plans and edits with your own model keys and supports MCP.
- Best for
- You want an open-source agent and full control of model choice and cost.
- Skip it if
- You want flat-rate pricing.
- Pricing
- Free and open source; pay your model provider unverified editorial summary, not yet confirmed on an official pricing page
- Platforms
- IDE extension · MCP
-
High-performance open-source editor written in Rust with built-in AI and support for external agents.
- Best for
- You want speed and a native editor that can host multiple agents.
- Skip it if
- You rely on a large VS Code extension ecosystem.
- Pricing
- Free forever editor; Pro $10/mo; Business $30/seat/mo ✓ verified on the official pricing page, Oct 18, 2026
- Platforms
- Mac · Linux · Win
-
IDE that turns prompts into specs, design docs and tasks before generating code.
- Best for
- You want structured, spec-first agent development.
- Skip it if
- You want quick throwaway prototypes.
- Pricing
- Kiro Free ($0, 50 credits); Pro $20/user/mo; Pro+ $40/user/mo ✓ verified on the official pricing page, Oct 18, 2026
- Platforms
- Mac · Win · Linux
Head-to-head comparisons
FAQ
What is the best AI tool for AI code editors and IDE extensions?
Cursor ranks first with 88/100 (S-tier). AI-first code editor. Use it when you want an AI IDE that feels like VS Code with agents built in. Next in our ranking: GitHub Copilot (83/100, A-tier) and Cline (80/100, A-tier).
Which AI tools for AI code editors and IDE extensions have a free tier?
In our pricing data, Cursor (unverified), GitHub Copilot (unverified), Cline (unverified), Zed (verified) and Kiro (verified) list a free tier. "Unverified" means it is an editorial summary we have not yet confirmed on the vendor's official pricing page, so check the vendor before relying on it.
Are there open-source options for AI code editors and IDE extensions?
Yes. Cline and Zed are listed as open source or open weights. Check each project's license before commercial use.
How are these tools ranked?
Each tool is scored out of 100 on our public rubric: job fit (30), ease (15), value (15), momentum (15), openness and portability (10), trust and maturity (10) and a builder/gamer bonus (5). S-tier is 85+, A-tier 70–84, B-tier 55–69 and C-tier below 55. Current scores are initial editorial estimates from public information, not hands-on tests, and sponsors can't buy points.