How to Deploy Your Replit Agent-Built App
Step-by-step guide to deploying your Replit Agent app to production. Covers Varies widely — Python with Flask/FastAPI deployment, environment variables, and production configuration.
What Replit Agent generates
Replit Agent typically generates projects using Varies widely — Python with Flask/FastAPI, Node.js with Express, or React frontends. Often uses Replit's built-in database and secrets management, which don't transfer to other hosting. Understanding the stack is important because it determines your deployment options and the specific configuration you'll need.
Where to deploy
For Python backends: Railway, Render, or AWS. For Node.js: Railway, Render, or Vercel serverless. For React frontends: Vercel or Netlify. The key challenge is replacing Replit-specific features
Step-by-step deployment
Export your code from Replit. Replace Replit Database references with a real database (PostgreSQL via Supabase, PlanetScale, or Neon). Move Replit Secrets to environment variables in your new platform. Update any Replit-specific file paths. Set up a proper process manager (PM2 for Node.js, gunicorn for Python). Configure health checks and monitoring. Deploy to your chosen platform
Environment variables
One of the most common deployment failures is missing or misconfigured environment variables. Replit Agent apps often hardcode values during development that need to be externalized for production. Audit every file for hardcoded URLs, API keys, and configuration values. Create a .env.example file listing every required variable. Set these in your hosting platform's dashboard before deploying.
Post-deployment checklist
After deploying, verify: HTTPS is enforced on all routes, custom domain is configured and resolving, environment variables are correctly loaded, all features work in production (not just locally), error tracking is capturing exceptions, and performance is acceptable under real conditions.
Common deployment mistakes
The most frequent issues we see in Replit Agent deployments: forgetting to set environment variables (causing startup crashes), not testing the production build locally before deploying, missing build dependencies, and using development configurations in production.
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Related guides
Common Bugs in Replit Agent-Generated Code
The most common bugs we find in Replit Agent apps and how to fix them.
Security Issues in Replit Agent Code
Critical security vulnerabilities commonly found in Replit Agent-generated apps.
Optimizing Replit Agent-Generated Code for Performance
How to make your Replit Agent app faster.
Adding Tests to Your Replit Agent Project
How to add a testing framework to your Replit Agent app.
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