Your Bolt.new app runs in the sandbox and dies on deploy
Bolt runs your project inside the browser using WebContainers. That is what makes it feel instant, and it is also why "it works in Bolt" and "it works on a server" are genuinely different claims.
Last updated: 16 August 2026
Why Bolt.new apps break in production
Bolt.new apps usually break at the boundary between its in-browser environment and a real host: missing environment variables, build steps that never ran, and server code that assumed a sandbox. Foundreco audits a Bolt project in 72 hours and quotes one fixed price to get it deployed and stable, starting at $1,500.
Symptoms specific to Bolt.new
What actually breaks in Bolt.new projects
Sandbox assumptions baked into the code
Code generated against WebContainers can rely on behaviour a real Node host does not provide — file paths, in-memory state that never persists, and services assumed to be running locally.
Environment variables that only ever existed in the editor
Secrets typed into Bolt are not carried to your host. The app then reads undefined in production and fails in ways that look like unrelated bugs.
No build pipeline at all
There is usually no CI, no test step and no rollback. Every deploy is a fresh gamble, which is why fixing one thing appears to break another.
Server and client code blurred together
Generated projects routinely import server-only modules into client bundles, which either breaks the build or, worse, ships secrets to the browser.
Can you take your Bolt.new code with you?
Bolt projects can be downloaded or pushed to GitHub, so the code is portable from the start. A rescue moves it into a repository you own, adds a real build and deploy pipeline, and gets it running on infrastructure that will still exist next year.
What happens next
Send the Bolt.new project link and the audit comes back inside 72 hours, severity-ranked, with one fixed price from $1,500 to approve or walk away from. If it should be rebuilt rather than repaired the audit says so, and the fee comes off the rebuild. The six steps and the rescue-or-rebuild table are on the rescue hub; every price is on the pricing page.
Rescue for other builders
- All vibe code rescue services — the full hub, including the rescue-or-rebuild decision table.
- Lovable rescue — lovable app not working.
- Replit rescue — replit app not working.
Bolt.new questions founders ask
Why does my Bolt.new app work in the editor but break in production?
Can I export my Bolt.new code and host it myself?
How much does it cost to fix a Bolt.new app?
Is my Bolt.new app secure?
Should I fix my Bolt.new app or rebuild it?
Get your Bolt.new app looked at properly
A 72-hour written audit tells you what is broken, what it costs to fix, and whether it is worth fixing at all. Send the project link and find out.