Alternatives to Bolt.new: AI App Builders for Serious Teams
Bolt.new is incredibly fun to use. You describe an app, watch it materialize in real-time, and feel like you're living in the future. Then you try to add authentication. Or connect a real database. Or god forbid, integrate it with your existing codebase.
That's when the magic dies.
The problem isn't that Bolt.new is bad—it's excellent at what it does. The problem is that generating code from scratch and understanding existing code are completely different challenges. One makes great demos. The other ships products.
If you're building throwaway prototypes or marketing landing pages, Bolt.new is perfect. But if you're working on actual production systems with real users and teammates who need to understand what you built, you need different tools.
Every AI code generator follows the same pattern: amazing first impression, painful second week.
You get a working app in minutes. Then you need to change something. The AI regenerates half your code. Your custom tweaks vanish. You spend an hour explaining context the AI already forgot. Eventually you're fighting the tool instead of using it.
This happens because these tools don't understand your codebase—they generate new code based on patterns. That's fundamentally different from working with existing systems.
Think about how you work with another developer. You don't describe the entire application from scratch every time you want to make a change. You say "update the auth middleware" or "add caching to the API routes." That works because both of you understand the codebase structure.
AI builders can't do this. They're starting fresh every time.
V0.dev: When Design Matters More
V0 by Vercel takes a different approach than Bolt. Instead of generating full applications, it focuses on React components with proper styling. You describe a UI element, get multiple design variations, and copy the code into your project.
This is smarter. V0 doesn't pretend to understand your architecture. It generates isolated, well-styled components that you integrate manually. The code quality is genuinely good—proper TypeScript, Tailwind conventions, accessibility basics covered.
The limitation is obvious: you're still copying code into your project without understanding how it fits. V0 generates a beautiful data table component. Great. Now you need to connect it to your API, handle loading states, add real pagination, and match your existing error handling patterns.
V0 gives you 70% of a component. You write the other 30% plus all the integration logic. For UI-heavy projects where design is the bottleneck, that's a fair trade. For complex business logic, it's just expensive copy-paste.
Cursor: The Codebase-Aware Editor
Cursor is where things get interesting. Instead of generating applications in a sandbox, Cursor works inside your actual codebase. It sees your file structure, reads your existing code, and suggests changes that fit your patterns.
When you ask Cursor to add a feature, it can analyze how you handle similar features elsewhere. It notices you're using Zod for validation and suggests the same. It sees your API route structure and follows the pattern. It reads your database schema before writing queries.
This is what makes Cursor dangerous for productivity. You're not explaining your entire tech stack in every prompt. The AI already has context.
The catch is that Cursor's context window is limited. It can see files you have open and make reasonable guesses about related code, but it doesn't have a complete map of your system. Ask it to refactor something that touches ten different files across three directories, and it starts making mistakes.
Still, for day-to-day development, Cursor is probably the best AI coding tool available. It's fast, the suggestions are usually sensible, and it doesn't try to take over your entire workflow.
GitHub Copilot: The Autocomplete That Grew Up
Copilot started as fancy autocomplete and evolved into something more capable. It's less ambitious than Cursor—fewer features, simpler interface—but that makes it more predictable.
Copilot Workspace (still in preview) adds higher-level planning. You describe a feature, Copilot analyzes your repo, suggests which files to modify, and generates the changes. It's GitHub's attempt at Bolt-style generation but with actual codebase awareness.
The advantage of Copilot is tight GitHub integration. It understands pull requests, can suggest fixes for failing tests, and references issues directly. If your team lives in GitHub, Copilot fits naturally into that workflow.
The disadvantage is speed. Copilot feels slower than Cursor, the suggestions are more conservative, and the chat interface is clunkier. It's like GitHub took the safe approach while Cursor took the fast one.
Replit Agent: For Learning, Not Shipping
Replit Agent deserves mention because it's genuinely impressive technology—just not for production work.
Replit Agent can build complete applications from scratch, deploy them, and even debug runtime errors by reading logs and fixing code automatically. It's like Bolt.new but with a persistent environment and actual debugging capabilities.
The problem is that everything lives in Replit. No Git integration, no proper deployment pipeline, no real control over the infrastructure. It's a brilliant teaching tool and amazing for experiments, but you can't build a serious product on it.
If you're learning to code or want to prototype ideas without setting up a development environment, Replit Agent is unmatched. For everything else, you'll outgrow it immediately.
The Missing Piece: Understanding What You Already Have
Here's what none of these tools solve: understanding your existing codebase at scale.
AI code generators are great at writing new code. They're terrible at understanding what you already have. They can't tell you which part of your codebase handles payments, where technical debt is concentrated, or why that one API endpoint is so slow.
This is where tools like Glue become essential. While Cursor and Copilot help you write code, Glue maps your entire system—every file, symbol, API route, and database table. It discovers features automatically, tracks code health, and shows you patterns across your codebase.
Think of it this way: AI code generators are great at answering "how do I build X?" Glue answers "what do we already have?" and "how does it work?"
You can use Cursor to add a new payment method, but Glue shows you all the places payment logic already exists, who owns it, and what the complexity score looks like. You can use V0 to design a dashboard component, but Glue tells you there are three other dashboard implementations in your codebase with different patterns.
The combination is powerful. Use AI tools to generate and modify code faster. Use code intelligence to understand what you're modifying.
Practical Advice: What to Actually Use
For quick prototypes and demos: Use Bolt.new or V0. They're perfect for this. Don't try to build production apps with them.
For real development work: Use Cursor if you want the fastest, most capable AI coding assistant. Use Copilot if GitHub integration matters more than raw speed.
For understanding what you have: Use code intelligence tools that map your codebase structure and patterns. This is essential once your codebase grows beyond what fits in memory.
The best setup I've seen combines all three: Cursor for daily coding, Glue for codebase understanding, and Bolt.new kept around for the occasional "I wonder if this UI idea would work" moment.
The Future Isn't Just Generation
The AI coding tool market is obsessed with generation. Every new tool promises to write more code faster with less input.
But the real bottleneck in software development isn't writing code—it's understanding what code already exists and how it fits together. You spend 10 minutes writing a feature and 2 hours figuring out where it should go, what it might break, and how it relates to everything else.
AI tools that solve the understanding problem are more valuable than AI tools that just generate more code. We already have too much code. What we need is better ways to navigate it.
That's why the most interesting development in this space isn't better code generation—it's the emergence of tools that can actually map and understand large codebases. Glue's approach of indexing everything and using AI to discover features and patterns feels like the right direction.
The winning combination isn't one tool that does everything. It's using AI generators for what they're good at (writing boilerplate, implementing well-defined features) while relying on code intelligence for what they're bad at (understanding existing systems, finding patterns, managing complexity).
What Actually Matters
Choose tools that make you ship faster, not tools that generate more impressive demos.
Use AI code generators for isolated features where the scope is clear. Use code intelligence when you need to understand how things connect. Use your brain when either tool gives you something that doesn't feel right.
The goal isn't to let AI write all your code. The goal is to spend less time on boring implementation details and more time on problems that actually matter. Pick tools that support that goal instead of tools that just promise magic.