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✓ verifiedFreemium
Open-source AI coding assistant offering autocomplete and chat in IDEs; the company was acquired by Cursor.
775K visits/mo
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Stackoverflow.ai
✓ verifiedFree
AI coding assistant on Stack Overflow that answers dev questions using the site's Q&A knowledge base, via chat or IDE.
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Code Arena
✓ verifiedFree
Side-by-side arena to compare AI coding models and build multi-file apps, with a public leaderboard and battle mode.
35M visits/mo201 saves
Pricing
No public pricing
No public pricing
No public pricing
No public pricing
Core features
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- ✦Open-source AI code assistant
- ✦Customizable autocomplete
- ✦In-editor AI chat
- ✦Community-built coding agent
- ✦Chat interface for asking coding questions
- ✦Answers sourced from Stack Overflow's Q&A archive
- ✦MCP server for IDE/agent integration
- ✦Saves and returns to chat history when logged in
- ✦Head-to-head model comparison
- ✦Battle mode matchups
- ✦Public model leaderboard
- ✦Multi-file app generation
- ✦File uploads as input
Use cases
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- →Get AI code completions while coding
- →Ask questions about code in the editor
- →Build on an open-source coding-agent foundation
- →Debugging code without leaving chat
- →Getting quick answers grounded in community-vetted content
- →Connecting AI coding agents to Stack Overflow via MCP
- →Researching solutions during IDE-based development
- →Choosing the best coding model
- →Benchmarking AI code quality
- →Prototyping small apps
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