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.
Milan Surelia
Milan Surelia is a Mobile App Developer with 5+ years of experience crafting scalable, cross-platform apps at 7Span and Meticha. At 7Span, he engineers feature-rich Flutter apps with smooth performance and modern UI. As the Co-Founder of Meticha, he builds open-source tools and developer-focused products that solve real-world problems.
Expertise:
💡 Developing cross-platform apps using Flutter, Dart, and Jetpack Compose for Android, iOS, and Web.
🖋️ Sharing insights through technical writing, blogging, and open-source contributions.
🤝 Collaborating closely with designers, PMs, and developers to build seamless mobile experiences.
Notable Achievements:
🎯 Revamped the Vepaar app into Vepaar Store & CRM with a 2x performance boost and smoother UX.
🚀 Launched Compose101 — a Jetpack Compose starter kit to speed up Android development.
🌟 Open source contributions on Github & StackOverflow for Flutter & Dart
🎖️ Worked on improving app performance and user experience with smart solutions.
Milan is always happy to connect, work on new ideas, and explore the latest in technology.
Jaime Orts-Caroff
I'm a Senior Android developer, open to work in various fields
Jared Hasson
Full time lead founding dev at a cyber security saas startup, with 10 yoe and a bachelor's in CS. Building & debugging software products is what I've spent my time on for forever
Meïr Ankri
Full-stack developer specializing in React / Next.js / Node.js with 6+ years of experience. I've worked across various sectors including automotive (Reezocar/Société Générale), healthcare (Medical Link SaaS), and e-commerce (Glasman). I build web apps end-to-end, from architecture to production, with a focus on scalability, performance, and code quality. I also mentor junior developers and contribute to technical decisions and code reviews.
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.
Jacek Rozanski
Senior PHP/Symfony developer and DevOps engineer with 20+ years of professional experience, running opcode.pl (web development agency, est. 2004).
Day job: I'm the sole backend developer at merketing company where I own and maintain 11 PHP/Symfony microservices on AWS (ECS Fargate, RDS, S3, CloudFront), handle the full CI/CD pipeline (Bitbucket Pipelines, Docker), and manage monitoring with Sentry and CloudWatch. These services handle high request volumes in production every month.
What I bring to AI-built apps:
- I audit and fix security issues (OWASP methodology), performance bottlenecks, and architectural problems in codebases generated by Cursor, Claude Code, Lovable, Bolt, and v0
- I refactor AI-generated prototypes into production-grade applications with proper error handling, testing, and clean architecture (SOLID, DDD, hexagonal architecture)
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Tech stack: PHP 8.x, Symfony, React, Next.js, PostgreSQL, MySQL, Docker, AWS (ECS, RDS, S3, SQS/SNS, CloudFront), Terraform, Supabase. I also use AI tools daily (Claude Code, Cursor) in my own workflow, so I understand both the strengths and the gaps in AI-generated code.
Based in Poland (CET timezone). Available for async work and calls during EU/US business hours.
Rudra Bhikadiya
I build and fix web apps across Next.js, Node.js, and DBs.
Comfortable jumping into messy code, broken APIs, and mysterious bugs.
If your project works in theory but not in reality, I help close that gap.
Sage Fulcher
Hey I'm Sage! Im a Boston area software engineer who grew up in South Florida. Ive worked at a ton of cool places like a telehealth kidney care startup that took part in a billion dollar merger (Cricket health/Interwell health), a boutique design agency where I got to work on a ton of exciting startups including a photography education app, a collegiate Esports league and more (Philosophie), a data analytics as a service startup in Cambridge (MA) as well as at Phillips and MIT Lincoln Lab where I designed and developed novel network security visualizations and analytics. I've been writing code and furiously devoted to using computers to make people’s lives easier for about 17 years. My degree is in making computers make pretty lights and sounds. Outside of work I love hip hop, the Celtics, professional wrestling, magic the gathering, photography, drumming, and guitars (both making and playing them)
Matt Butler
Software Engineer @ AWS
Costea Adrian
Embedded Engineer specilizing in perception systems. Latest project was a adas camera calibration system.
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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.