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Replit is an online IDE with deep AI integration for building and deploying apps entirely in the browser. Its Replit Agent can build full applications from a prompt, handling code, databases, and deployment end-to-end.
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Replit has introduced Security Agent, an AI-powered tool that performs comprehensive security reviews of codebases in under an hour. The agent uses a hybrid approach combining LLMs with Semgrep and HoundDog.ai, and according to recent research can identify up to 93.3% of false positives from traditional static analysis tools.
Replit has released Agent 4, a major update that fundamentally restructures how product teams design, collaborate, and build. The release replaces Design Mode with an infinite Design Canvas, moves from fork-and-merge to shared real-time collaboration, and enables concurrent planning and execution.