Slow Bundle Build Time - Build Takes Too Long
Your Bolt app takes minutes to build even with small changes. Development speed suffers with slow hot reload and rebuild times.
npm run dev or npm run build takes excessive time (over 30 seconds for simple changes).
Error Messages You Might See
Common Causes
- Too many dependencies or heavy packages being bundled
- Webpack/Next.js not optimized - missing splitting or lazy loading
- Large image assets in bundle instead of optimized
- Development mode compiling all unused code
- TypeScript checking every file on each change
How to Fix It
Analyze bundle: npm run build -- --analyze to see what's large
Remove unused dependencies: npx depcheck
Use dynamic imports for heavy libraries: import('heavy-lib').then(mod => mod.default)
Enable SWC minifier in next.config.js for faster builds
Split code: ensure lazy loading of routes and components
For dev: use --turbo flag if using Next.js 13+
Real developers can help you.
Vlad Temian
15+ years shipping production infrastructure for startups. Former CTO at qed.builders (acquired by The Sandbox).
Cursor ambassador and agentic tooling builder.
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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.
prajwalfullstack
Hi Im a full stack developer, a vibe coded MVP to Market ready product, I'm here to help
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.
Nam Tran
10 years as fullstack developer
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
Matt Butler
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Jen Jacobsen
I’m a Full-Stack Developer with over 10 years of experience building modern web and mobile applications. I enjoy working across the full product lifecycle — turning ideas into real, well-built products that are intuitive for users and scalable for businesses.
I particularly enjoy building mobile apps, modern web platforms, and solving complex technical problems in a way that keeps systems clean, reliable, and easy to maintain.
Mehdi Ben Haddou
- Founder of Chessigma (1M+ users) & many small projects
- ex Founding Engineer @Uplane (YC F25)
- ex Software Engineer @Amazon and @Booking.com
Dor Yaloz
SW engineer with 6+ years of experience,
I worked with React/Node/Python
did projects with React+Capacitor.js for ios
Supabase expert
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Get HelpFrequently Asked Questions
What's a good target build time?
Dev mode cold start: <10s. Hot reload: <2s. Full build: <20s
How do I find what's slowing builds?
npm run build -- --analyze or npm run build --profile to see bottlenecks
Does using less packages help?
Yes significantly. Each dependency adds parsing time. Prefer lighter alternatives or inline small utilities