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Replit

Replit

Browser-based IDE with an AI Agent that builds complete applications from natural language. Combines a full development environment with AI assistance for frontend, backend, database, and deployment — all without local setup.

Free AvailableBrowser IDEAI AgentFull-StackMobile Dev
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a16z Web Ranking

#22

Idiomas soportados

50+

Fundado

2016

Deployment Options

3 types

Empresa

Replit, Inc.

Introducción

Replit is a browser-based development environment that uniquely combines a full-featured IDE with an AI Agent capable of building complete applications from natural language descriptions. Unlike pure AI app builders, Replit gives you both the power of conversational AI and the control of a traditional code editor — you can switch between asking the Agent to build features and writing code yourself at any time.

What sets Replit apart from competitors is its breadth. It supports over 50 programming languages, runs everything in isolated containers in the cloud, and requires zero local setup — just open your browser and start building. The AI Agent handles architecture planning, code generation, package installation, database configuration, and deployment. When you need finer control, the full IDE with syntax highlighting, terminal, debugger, and package manager is right there.

Replit serves a uniquely wide audience. Computer science students use it for coursework and learning. Hobbyist developers use it to build side projects without cluttering their local machine. Professional developers use the AI Agent for rapid prototyping. And with React Native and Expo support, Replit is one of the few AI platforms that can build mobile apps — previewing them on your phone through Expo Go.

Ventajas

  • +Full IDE in the browser — no local setup or environment configuration needed
  • +AI Agent builds complete apps including database and deployment end-to-end
  • +Unique mobile app development support with React Native and Expo
  • +Real-time multiplayer collaboration with live cursors and shared terminal
  • +Supports 50+ programming languages in isolated containers
  • +Three deployment options (static, autoscale, reserved VM) for different needs
  • +Integrated PostgreSQL database provisioned automatically
  • +SSH access available for advanced users who want terminal access

Desventajas

  • -Free tier is quite limited — public projects only and restricted AI usage
  • -Browser IDE can feel slower than native editors like VS Code or Cursor
  • -AI Agent can struggle with complex multi-step requirements on large projects
  • -Always-on hosting requires a paid plan — free deployments sleep after inactivity
  • -Cloud-based containers add network latency compared to local development

Características principales

AI Agent

Describe what you want in natural language and the Agent builds it end-to-end. It plans the architecture, writes code, installs packages, configures the database, handles errors, and deploys — all while explaining its reasoning.

Browser-Based IDE

Full-featured IDE running entirely in the browser. Code editor with syntax highlighting, IntelliSense, terminal, file explorer, package manager, and debugger — no local installation, configuration, or environment setup needed.

Instant Deployment

Deploy any project to a production URL with one click. Includes HTTPS, custom domains, and always-on hosting for paid plans. Choose between static hosting, autoscale for web servers, or reserved VMs for background workers.

Built-in PostgreSQL Database

Integrated PostgreSQL database provisioned automatically when your project needs persistence. The AI Agent sets up schemas, migrations, ORM connections, and seed data as part of app generation.

Mobile App Development

Build React Native and Expo apps directly in the browser. Preview on your phone with the Expo Go app and build for both iOS and Android. One of the few AI platforms supporting native mobile development.

Multiplayer Collaboration

Real-time collaborative coding with multiple users editing the same project simultaneously. Built-in chat, shared terminal, and live cursors make pair programming seamless even across time zones.

50+ Language Support

Supports Python, JavaScript, TypeScript, Go, Rust, Java, C++, Ruby, PHP, Haskell, and dozens more. Each project runs in its own isolated container with language-specific tooling pre-configured.

Secrets and Environment Variables

Securely store API keys, database credentials, and configuration secrets. Environment variables are encrypted and never exposed in code, making it safe to share projects publicly.

Package Management

Install packages from npm, pip, cargo, go modules, and other package managers directly from the UI or terminal. The AI Agent automatically installs required dependencies as it generates code.

¿Quién debería usarla?

Full-Stack App Prototyping

Use the AI Agent to describe an app idea and get a working prototype with database and authentication in minutes. Iterate by chatting with the Agent or editing code directly. Deploy instantly to share with stakeholders or users.

Startup founders, product managers, and developers building MVPs

Computer Science Education

Students can start coding immediately without installing compilers, editors, or dependencies. Teachers create assignments as templates. The AI Agent helps debug errors and explain concepts. Supports all common CS languages including Python, Java, and C++.

CS students, coding bootcamp participants, and educators

Mobile App Development

Build React Native and Expo apps entirely in the browser. The AI Agent scaffolds navigation, screens, and API integration while you preview on your physical device through Expo Go. Ship to both iOS and Android app stores.

Mobile developers and teams building cross-platform apps

Collaborative Side Projects

Build projects with friends or colleagues in real-time multiplayer mode. No Git merge conflicts — everyone edits the same codebase simultaneously with live cursors, shared terminal, and built-in chat.

Hobbyist developers, hackathon teams, and open-source contributors

Planes de precios

Free

$0
  • Limited AI Agent usage
  • Public projects only
  • Community support
  • Basic compute resources
  • Core IDE features
Recomendado

Replit Core

$25/month
  • Increased AI Agent usage
  • Private projects
  • Always-on deployments
  • Custom domains
  • Boosted compute (4 GiB RAM)
  • SSH access to Repls
  • Priority support

Teams

$15/month
  • Everything in Core per member
  • Team management dashboard
  • Shared projects and templates
  • Centralized billing
  • Priority support
  • Role-based access controls

Comparativa

Replit vs Lovable

Replit and Lovable both build apps from natural language, but Replit includes a full IDE for hands-on coding while Lovable is a pure AI builder designed for non-technical users. Replit is better when you want coding control; Lovable is better when you want to avoid code entirely.

Replit destaca en

  • +Full IDE lets you write and edit code alongside AI generation
  • +Supports 50+ languages vs Lovable React/TypeScript only
  • +Mobile app development with React Native and Expo

Lovable destaca en

  • +Lovable is more accessible for non-technical users
  • +Lovable has a more polished visual editor for design adjustments
  • +Lovable generates cleaner, more opinionated code with fewer decisions required

Replit vs Bolt

Both are browser-based app builders, but they use different technology. Bolt runs Node.js in the browser via WebContainers for instant feedback. Replit runs containers in the cloud, which supports more languages but adds network latency.

Replit destaca en

  • +Supports 50+ languages beyond JavaScript/TypeScript
  • +Full IDE with terminal, debugger, and package manager
  • +Mobile app development is a unique capability

Bolt destaca en

  • +Bolt WebContainers provide faster, latency-free in-browser development
  • +Bolt token-based pricing can be more predictable
  • +Bolt framework support (Vue, Svelte, Astro) is broader for web projects

1. Getting Started with Replit

Sign up at replit.com and click "Create Repl." You can choose from dozens of language templates (Python, Node.js, React, etc.) or simply describe your project to the AI Agent. If you start with the Agent, tell it what you want to build — for example, "Build a task management app with user accounts and a PostgreSQL database." The Agent will plan the architecture, set up the project, install dependencies, and get you a running app in minutes.

2. Building with the AI Agent

Open the AI Agent panel and describe your requirements in detail. Be specific about features, user flows, and technical preferences. The Agent works step-by-step: it plans the architecture, creates files, writes code, installs packages, configures the database, and tests the result. You can interrupt at any point to give feedback, change direction, or ask the Agent to explain its choices. The Agent learns from your corrections and adjusts its approach.

3. Coding in the Browser IDE

The IDE supports full coding with syntax highlighting, autocomplete, linting, and formatting. Use the integrated terminal to run commands, install packages, and interact with your database. The file explorer lets you navigate your project structure. The AI assistant (separate from the Agent) provides inline code suggestions and can answer questions about specific code sections.

4. Deploying Your Application

Click the Deploy button and choose your deployment type: Static (for frontend-only apps), Autoscale (for web servers that scale with traffic), or Reserved VM (for background workers and long-running processes). Configure a custom domain if desired and your app goes live with HTTPS. Paid plans keep deployments running 24/7; free deployments sleep after inactivity.

Preguntas frecuentes

No. Replit runs entirely in your browser. No local installation, compiler setup, or environment configuration is required. Just sign up and start coding or building with the AI Agent immediately.
Yes. Replit supports React Native and Expo for mobile app development. You can preview your app on a physical device using Expo Go and build for both iOS and Android app stores.
Replit supports over 50 languages including Python, JavaScript, TypeScript, Go, Rust, Java, C++, Ruby, PHP, Haskell, and more. Each project runs in an isolated container with the appropriate toolchain pre-installed.
Yes, Replit offers a free tier with limited AI Agent usage and public projects. The Core plan at $25/month provides more AI usage, private projects, always-on deployments, and boosted compute resources.
Yes. Replit supports real-time multiplayer collaboration where multiple people can edit the same project simultaneously with live cursors, shared terminal, and built-in chat. No Git merging required.
Replit offers a full IDE experience with AI assistance, making it suitable for both coding and no-code use. Lovable focuses on pure natural language building for non-developers. Bolt emphasizes in-browser speed with WebContainers and token-based pricing.
Yes. Replit offers autoscale deployments that handle production traffic, custom domains with HTTPS, and PostgreSQL databases. Many applications are deployed and served directly from Replit infrastructure.
Free tier projects are public by default. The Core plan ($25/month) includes private projects that are only visible to you and invited collaborators. Secrets and environment variables are always encrypted regardless of plan.
Yes. You can download your project as a ZIP file or connect to a GitHub repository for version control. The code is yours and can be developed further in any local editor or IDE.
Yes. Replit provides integrated PostgreSQL databases provisioned automatically when needed. The AI Agent can create schemas, set up migrations, and configure ORM connections as part of building your application.