Replit
auth
OAuth Setup Failing on Replit
OAuth providers reject your Replit application with invalid redirect URI or misconfigured credentials. Your login flow fails when redirecting back from the OAuth provider.
This commonly happens when the redirect URI registered with the OAuth provider doesn't match your Replit deployment domain or when environment variables are missing.
Error Messages You Might See
error_description: invalid_redirect_uri
Invalid redirect_uri parameter
The redirect_uri MUST match the registered redirect_uri
Common Causes
- Redirect URI mismatch between OAuth provider config and Replit domain
- Missing or incorrect environment variables (CLIENT_ID, CLIENT_SECRET)
- Using localhost instead of Replit production domain in OAuth settings
- OAuth provider not whitelisting Replit's deployment domains
- Replit URL includes .replit.dev but provider expects just domain
How to Fix It
Verify your OAuth provider settings match your Replit deployment URL exactly (e.g., https://myapp-username.replit.dev). Check that CLIENT_ID and CLIENT_SECRET are set in Replit Secrets. Some providers require explicit https:// and trailing slash consistency.
Real developers can help you.
zipking
I am a technologist and product builder dedicated to creating high-impact solutions at the intersection of AI and specialized markets. Currently, I am focused on PropScan (EstateGuard), an AI-driven SaaS platform tailored for the Japanese real estate industry, and exploring the potential of Archify.
As an INFJ-T, I approach development with a "systems-thinking" mindset—balancing technical precision with a deep understanding of user needs. I particularly enjoy the challenge of architecting Vertical AI SaaS and optimizing Small Language Models (SLMs) to solve specific, real-world business problems. Whether I'm in a CTO-level leadership role or hands-on with the code, I thrive on building tools that turn complex data into actionable value.
Caio Rodrigues
I'm a full-stack developer focused on building practical and scalable web applications. My main experience is with **React, TypeScript, and modern frontend architectures**, where I prioritize clean code, component reusability, and maintainable project structures.
I have strong experience working with **dynamic forms, state management (Redux / React Hook Form), and complex data-driven interfaces**. I enjoy solving real-world problems by turning ideas into reliable software that companies can actually use in their daily operations.
Beyond coding, I care about **software quality and architecture**, following best practices for componentization, code organization, and performance optimization.
I'm also comfortable working across the stack when needed, integrating APIs, handling business logic, and helping transform prototypes into production-ready systems.
My goal is always to deliver solutions that are **simple, efficient, and genuinely useful for the people using them.**
rayush33
JavaScript (React.js, React Native, Node.js) Developer with demonstrated industry experience of 4+ years, actively looking for opportunities to hone my skills as well as help small-scale business owners with solutions to technical problems
Omar Faruk
As a Product Engineer at Klasio, I contributed to end-to-end product development, focusing on scalability, performance, and user experience.
My work spanned building and refining core features, developing dynamic website templates, integrating secure and reliable payment gateways, and optimizing the overall system architecture.
I played a key role in creating a scalable and maintainable platform to support educators and learners globally.
I'm enthusiastic about embracing new challenges and making meaningful contributions.
Kingsley Omage
Fullstack software engineer passionate about AI Agents, blockchain, LLMs.
PawelPloszaj
I'm fronted developer with 10+ years of experience with big projects. I have small backend background too
ISHANTDEEP SINGH
Senior Software Engineer with 7+ years of experience in React, JavaScript, TypeScript, Next.js, and Node.js. I’ve also worked as a tech lead for startups, owning end-to-end technical execution including architecture, development, scaling, and delivery. I bring a strong mix of hands-on coding, product thinking, and technical leadership, and I’m comfortable building products from scratch as well as improving and scaling existing systems.
Krishna Sai Kuncha
Experienced Professional Full stack Developer with 8+ years of experience across react, python, js, ts, golang and react-native. Developed inhouse websearch tooling for AI before websearch was solved : )
Pratik
SWE with 15+ years of experience building and maintaining web apps and extensive BE infrastructure
AUXLE
I am a Full Stack Developer experienced in building Websites, Web apps and Cross Platform Mobile Apps for Startups and Companies.
You don't need to be technical. Just describe what's wrong and a verified developer will handle the rest.
Get HelpFrequently Asked Questions
How do I find my Replit deployment URL?
Click 'Deploy' in Replit, your URL is shown as https://your-project-username.replit.dev
Where do I set CLIENT_ID and CLIENT_SECRET?
Use the Secrets panel (lock icon) in Replit to add environment variables
Can I test locally before deploying?
Use localhost:3000 for local testing, but update OAuth provider settings before production