v0
storage
Image Optimization Not Working with next/image
Images in your v0-generated Next.js application are either not being optimized by the next/image component, displaying broken placeholders, or failing to load entirely. The Image component shows errors about unconfigured domains, and images served from external sources are returned unoptimized at their original size.
This is particularly problematic for performance because unoptimized images are often the largest assets on a page, and v0 frequently references external image sources like Unsplash, Cloudinary, or user-uploaded content from various CDNs.
The next/image component requires explicit domain whitelisting in next.config.js, and v0 may not have added all the necessary domains to the configuration.
Error Messages You Might See
Error: Invalid src prop on next/image, hostname not configured
Image with src has either width or height modified
Error: Image Optimization using default loader is not compatible
Warning: Image with src was detected as the Largest Contentful Paint
Common Causes
- External domains not whitelisted — next.config.js remotePatterns or domains array missing the image source domain
- Using img tag instead of Image component — v0 generated standard HTML img tags that bypass optimization
- Missing width and height props — Image component requires explicit dimensions or fill mode
- Vercel image optimization quota exceeded — free tier limited to 1000 optimized images per month
- Incorrect loader configuration — custom loader not returning proper URL format for the image CDN
How to Fix It
- Add remote patterns — configure next.config.js with
images: { remotePatterns: [{ protocol: 'https', hostname: '**.example.com' }] } - Replace img with Image — import Image from 'next/image' and replace all <img> tags with <Image> components
- Use fill mode for dynamic sizes — for images with unknown dimensions, use
<Image fill sizes="100vw" />inside a relative-positioned container - Add blur placeholders — use
placeholder="blur" blurDataURL="data:image/..."for better loading experience - Configure custom loader — for Cloudinary or similar CDNs, create a custom loader function that generates optimized URLs
Real developers can help you.
Richard McSorley
Full-Stack Software Engineer with 8+ years building high-performance applications for enterprise clients. Shipped production systems at Walmart (4,000+ stores), Cigna (20M+ users), and Arkansas Blue Cross. 5 patents in retail/supply chain tech. Currently focused on AI integrations, automation tools, and TypeScript-first architectures.
Jaime Orts-Caroff
I'm a Senior Android developer, open to work in various fields
David Olverson
Solo dev shipping production apps with AI-assisted development. I specialize in rescuing broken Lovable/Bolt/Cursor builds and taking them to production. 10+ apps shipped including SaaS CRMs, gaming platforms, real estate tools, and Discord bots. Stack: Next.js 16, TypeScript, Tailwind CSS, FastAPI, PostgreSQL, Prisma. I use Claude Code with 50+ custom skills for rapid delivery. Average turnaround: 2-4 weeks from broken prototype to production.
PawelPloszaj
I'm fronted developer with 10+ years of experience with big projects. I have small backend background too
MFox
Full-stack professional senior engineer (15+years). Extensive experience in software development, qa, and IP networking.
Bastien Labelle
Full stack dev w/ 20+ years of experience
hanson1014
Full-stack developer experienced in fixing and deploying AI-generated apps from Lovable, Bolt.new, Cursor, and Replit. I specialize in debugging Supabase integration issues (auth flows, RLS policies, database connections), fixing broken deployments, resolving routing/blank screen problems, and cleaning up messy React/Vite codebases. I also build production apps with the Claude API and have shipped a Mac desktop dev tool (Nexterm from scratch. Based in Hong Kong, fast turnaround.
Daniel Vázquez
Software Engineer with over 10 years of experience on Startups, Government, big tech industry & consulting.
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.
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.**
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 whitelist all subdomains for an image host?
Use remotePatterns with a wildcard: { hostname: '**.cloudinary.com' }. This matches any subdomain of cloudinary.com.
Should I use width/height or fill?
Use width/height when you know the image dimensions. Use fill when the image should fill its parent container responsively. Always provide sizes prop with fill.
How do I check if images are being optimized?
Open DevTools Network tab, filter by images, and check the URL. Optimized images are served from /_next/image with width and quality parameters.