Replit Agent 3

Our most autonomous agent yet

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About

Replit Agent 3 is Replit's most autonomous coding agent. It builds applications, tests them in a real browser, fixes issues it finds on its own, and can even create other bots and automations, working through longer tasks with minimal supervision.

The step up from earlier versions is how much it can do between check-ins, running, observing results, and correcting course without waiting for the developer at each stage.

It is aimed at developers and builders who want to delegate substantial chunks of a project to an agent that can carry a task from start to a tested, working result, and review the outcome rather than each step.

AI-assisted draft, human-reviewed before publishing — see how we choose & review tools.

Why we picked it

We picked Replit Agent 3 for how much it does between check-ins rather than any single feature — it runs, tests in a real browser, fixes what it finds, and can spin up its own automations, which suits someone comfortable handing over a longer chunk of a build.