Supermaven vs Project IDX
Head-to-head comparison — updated April 2026
Supermaven
Fastest AI code completion
Free plan$10/mo★ 4.7✓ Higher rated✓ Cheaper
Try Supermaven →VS
Our Verdict
Choose Supermaven for enhanced code completion in your existing IDE setup with superior performance ratings. Choose Project IDX for a complete free, cloud-based development environment with integrated AI and deployment tools.
Why Supermaven?
✓ Higher user rating (4.7 vs 4.3)
✓ Multi-IDE support for existing workflows
✓ Larger context window (300k tokens)
Why Project IDX?
✓ Free tier with no pricing tier listed
✓ Integrated cloud IDE environment
✓ Built-in deployment and templates
Which Should You Choose?
Both Supermaven and Project IDX are strong tools in the AI coding space. Supermaven has higher user ratings overall. Choose Supermaven if you value fast and multi ide. Choose Project IDX if you want to start free.