When you’re vibe coding—focusing on creativity and rapid iteration—it’s easy to overlook security. Replit has designed the platform to push you towards security best practices by providing robust security features that work automatically.

Replit provides several security features out of the box that make it easier to build secure applications.

1

Version control

Replit offers native version control with Git integration. Additionally, you can access file history directly in the Workspace:

  • Use the History panel to see every keystroke and revert changes
  • Access Git features through the Git pane
  • Roll back to checkpoints when using Agent
2

Google Cloud infrastructure

All Replit deployments are backed by Google Cloud Platform (GCP):

  • Deployments run on GCP
  • Object storage uses Google Cloud Storage (GCS)
  • Resource isolation between projects
  • DDoS protection through Google Cloud Armor
3

Encrypted secrets storage

Secrets are encrypted using Google Cloud’s secure storage and are safely accessible from your application’s code.

To add a secret:

  1. Go to the Secrets pane in your Workspace
  2. Click Add a new secret
  3. Enter a key and value
  4. Click Add secret

Keep sensitive information like API keys secure:

// Don't do this
const apiKey = "sk_test_abcdef12345";

// Do this instead
const apiKey = process.env.API_KEY;
4

Object storage

When using Replit’s object storage:

  • Files are backed by Google Cloud Storage
  • Only your app can access stored files by default
  • No need to worry about public access control
5

Replit Auth

Implement authentication without building it from scratch.

Benefits of Replit Auth:

  • Handles login securely
  • Manages sessions
  • Reduces authentication implementation errors

Ask Agent:

Help me implement authentication for my application with Replit Auth
6

Secure architecture with Agent

Agent builds applications with:

  • Proper separation of front-end and back-end
  • Secure back-end communication with databases
  • Front-end that communicates only with your back-end API
7

Database security with ORMs

Agent uses Object-Relational Mapping (ORM) tools when building applications with databases:

  • Protection against SQL injection
  • Schema validation
  • Type safety
  • Managed database connections

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