Bolt Got You a Working App. Getting It Deployed Right Is a Different Problem.
Bolt.new builds your entire project — frontend, backend, and database choice — inside a WebContainer running right in your browser tab. You can watch a working full-stack app assemble itself in minutes. Getting that same app to survive outside the browser is where things get harder.
The WebContainer sandbox is a different runtime than whatever you actually deploy to. Environment variables set during a Bolt session don't automatically travel to your hosting provider. Node behavior that looked fine in-browser sometimes doesn't match production. None of that is a Bolt bug — it's just what happens when a browser sandbox and a real server are two different environments.
We see the same handful of gaps in nearly every Bolt project that's tried to go live: missing environment configuration, a database that was an afterthought, and zero tests that ran against anything other than the in-browser preview.
Here's what we'll do with your Bolt project:
- ✓Rebuild the deploy pipeline for your actual hosting provider, not the WebContainer preview
- ✓Move every secret into real environment configuration and rotate exposed keys
- ✓Reconcile the database schema with what your API layer actually expects
- ✓Harden session and cookie handling for real multi-user traffic
- ✓Prune the dependency tree back to one library per job
- ✓Get it stable enough to stop babysitting after every deploy
What Bolt Actually Builds
Bolt.new (from StackBlitz) generates a full Node.js project — typically an Express-style API plus a frontend — and runs it live inside a WebContainer, a full Node runtime that executes entirely in your browser tab.
That's a genuinely impressive piece of engineering, and the code it produces is real, exportable code — not a toy. The gap is between "runs in the WebContainer preview" and "runs on the hosting provider you actually chose," and that gap is exactly where most Bolt projects stall before launch.
Where Bolt Apps Actually Break
These aren't generic AI-code complaints — they're the specific failure modes that come from how Bolt itself works.
WebContainer preview never matches the real production runtime
Node module resolution, native bindings, and background or cron behavior that "worked" in the browser sandbox often behaves differently once shipped to actual Node hosting like Vercel, Render, or Fly.
Environment variables trapped in the browser session
Bolt's iterative prompts often reference environment values that were set inside the WebContainer session and never make it into a real .env or the hosting provider's secret store — so the first deploy crashes on missing config, or someone pastes real keys straight into a prompt.
Database choice bolted on late, not designed
Because Bolt scaffolds UI and API routes first, the database — whatever the prompt picked — frequently gets wired in after several iterations, leaving mismatched types between the API layer and what's actually persisted.
Session and cookie handling written for a single-tab preview
Auth flows built and tested only inside the WebContainer's single preview tab miss real-world session issues — cookies scoped incorrectly, no CSRF protection, tokens that never expire.
package.json bloat from regenerated iterations
Every "try this instead" prompt tends to add a new dependency rather than remove the old one, so Bolt projects accumulate competing libraries doing the same job — two HTTP clients, two state managers, sometimes two ORMs.
Zero test coverage validated against production
Whatever manual testing happened, happened against the WebContainer preview URL, not the real deployed app — so untested code paths are the norm, not the exception, once the app leaves the sandbox.
What We Do in a Bolt Rescue
Every item below maps directly to the failure modes above — not a generic checklist.
- ✓Rebuild the deploy pipeline against your actual hosting target and catch every WebContainer-only assumption
- ✓Move every secret out of the codebase and into your host's environment configuration, then rotate exposed keys
- ✓Reconcile the database schema with what the API layer actually expects and add real migrations
- ✓Harden session and cookie handling for multi-user, multi-tab, real-network conditions
- ✓Prune the dependency tree back to one library per job
- ✓Add a test suite that runs against a deployed build, not the in-browser sandbox
Rewrite vs. Stabilize: Bolt
The honest answer depends on your codebase, not on which tool built it. Here's how we make that call for Bolt specifically.
Stabilize if…
- ✓The Express/Node structure Bolt generated is sound — it just needs to be deployed and hardened
- ✓The database choice was reasonable and mainly needs a real migration and connection setup
- ✓The main gaps are environment and secrets configuration, not the application logic
Rewrite if…
- ✕The app relies on filesystem or runtime assumptions that only exist inside a WebContainer
- ✕Dependency conflicts from repeated regeneration have made the build itself unreliable
- ✕You need infrastructure — queues, background jobs, real-time — that Bolt's scaffold never accounted for
Most Bolt rescues are a deploy-and-harden job, not a rewrite — the code is usually real and reasonable, it just never left the sandbox it was born in.
Log Cannon
Log Cannon was built to keep accepting log events even when the pipeline downstream hiccups — the same edge-to-database reliability thinking a Bolt app needs once it leaves the WebContainer sandbox.
Read the case studyRescues for Other Tools
Built with something else, or a mix of tools? Every AI builder has its own failure modes.
Bolt Rescue: Frequently Asked Questions
Why did my Bolt app work in the preview but break after I deployed it?
Bolt runs your entire project inside a WebContainer — a Node runtime that executes in your browser tab. That's a different environment than whatever hosting provider you deploy to, so environment variables, filesystem assumptions, and even some Node behavior don't automatically carry over.
Does Bolt lock me into StackBlitz's own hosting?
No — Bolt exports standard, portable code. But that also means nobody configured your real hosting provider for you. Getting from "exportable code" to "deployed and stable" is exactly the gap we close.
What database should a Bolt app actually use in production?
It depends on your app, but we evaluate whatever Bolt's prompt chose and either harden the existing setup or migrate it to something that fits your real usage pattern — rather than assuming a rebuild is required.
Can you just take my Bolt export and deploy it as-is?
Sometimes the core app can go live quickly, but secrets, session handling, and database configuration almost always need real work first — deploying it as-is usually just moves the WebContainer's shortcuts into production.
How long does a Bolt rescue take?
Most Bolt rescues take 2-6 weeks depending on how much deploy and infrastructure work is needed versus application logic fixes.
What does a Bolt rescue cost?
The audit is $1,500 flat, two-week turnaround, with a written report and a fixed-price quote afterward. Most Bolt rescues run $15,000–$50,000 depending on scope.