Replit

Replit is a cloud development platform where the entire stack lives in the browser: editor, runtime, database, secrets, and hosting. Its headline capability is Replit Agent, which turns a natural-language description into a working application — scaffolding the project, writing the code, provisioning a Postgres database and authentication, and deploying it to a public URL, all inside one environment. You describe the app; it builds, runs, and iterates with you.

Replit occupies a different niche from the IDEs and CLIs in this module. Cursor and Claude Code accelerate developers working on existing codebases with local toolchains; Replit removes the toolchain entirely. That makes it the fastest path from idea to deployed product — no environment setup, no separate hosting decisions — which is why it anchors the vibe coding wave of prototypes and internal tools built largely through conversation. For working developers, it shines for spikes, demos, hackathons, and small production apps where infrastructure ceremony isn’t worth it.

In practice, you’ll start by prompting the Agent with what you want to build; it proposes a plan, implements it, and shows a live preview you can click through while it works. You’ll refine through follow-up prompts, drop into the full editor whenever you want to change code by hand, manage secrets and the built-in database from panels, and ship with one-click deployments — autoscaling for web apps, scheduled jobs for background work. Git integration keeps the escape hatch open when a project outgrows the platform.