Bolt deployment

Blank Page After Deploy to Vercel/Netlify

Your app works perfectly in development but shows a blank white page after deploying to Vercel or Netlify. No errors in the browser console, just whitespace.

The deployment log shows 'Build succeeded' but the page won't render anything.

Error Messages You Might See

Build output exceeded maximum size Error during Next.js build Cannot find module '@/components' Hydration mismatch between server and client
Build output exceeded maximum sizeError during Next.js buildCannot find module '@/components'Hydration mismatch between server and client

Common Causes

  1. Build fails silently but deploy continues - check build logs carefully
  2. Environment variables missing in deployment platform
  3. Node version incompatibility between local and deployment
  4. CSS/images not bundled properly in build
  5. JavaScript runtime error in root component during hydration

How to Fix It

Check full build logs in Vercel/Netlify deployment: look for warnings and errors

Add environment variables in deployment platform settings that exist in local .env.local

Test production build locally: npm run build && npm run start

Check browser DevTools Network tab - are CSS and JS files loading?

Look for hydration mismatches in console warnings

Real developers can help you.

Anthony Akpan Anthony Akpan Developer with 8 years of experience building softwares fro startups Rudra Bhikadiya 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. Taufan Taufan I’m a product-focused engineer and tech leader who builds scalable systems and turns ideas into production-ready platforms. Over the past years, I’ve worked across startups and fast-moving teams, leading backend architecture, improving system reliability, and shipping products used by thousands of users. My strength is not just writing code — but connecting product vision, technical execution, and business impact. Sage Fulcher 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) BurnHavoc BurnHavoc Been around fixing other peoples code for 20 years. Tejas Chokhawala Tejas Chokhawala Full-stack engineer with 5 years experience building production web apps using React, Next.js and TypeScript. Focused on performance, clean architecture and shipping fast. Experienced with Supabase/Postgres backends, Stripe billing, and building AI-assisted developer tools. ISHANTDEEP SINGH 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. Antriksh Narang Antriksh Narang 5 years+ Experienced Dev (Specially in Web Development), can help in python, javascript, react, next.js and full stack web dev technologies. Matt Butler Matt Butler Software Engineer @ AWS Basel Issmail Basel Issmail ’m a Senior Full-Stack Developer and Tech Lead with experience designing and building scalable web platforms. I work across the full development lifecycle, from translating business requirements into technical architecture to delivering reliable production systems. My work focuses on modern web technologies, including TypeScript, Angular, Node.js, and cloud-based architectures. I enjoy solving complex technical problems and helping teams turn product ideas and prototypes into working platforms that can grow and scale. In addition to development, I often collaborate closely with product managers, business analysts, designers, and QA teams to ensure that solutions align with both technical and business goals. I enjoy working with startups and product teams where I can contribute both as a hands-on engineer and as a technical partner in designing and delivering impactful software.

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Frequently Asked Questions

How do I see detailed build errors in Vercel?

Go to Deployments > [deployment] > Logs. Check both Build and Runtime logs

Why would it work locally but fail on deploy?

Missing env vars, different Node versions, or unsupported packages in serverless environment

How do I test production build locally?

npm run build then npm run start, then visit localhost:3000

Related Bolt Issues

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