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FIX MY BOLT APP

Bolt app stuck? Here's what's usually wrong.

Bolt built you a real app in the browser at a speed that still feels unreasonable. If it now truncates its own edits, breaks the moment you deploy, or your database lets anyone read anything, you've hit patterns we see again and again. All fixable.

We take Bolt prototypes to production: auth, payments, integrations, data, security and hosting. Then we hand it over, or we keep running it. Part of our prototype to production service.

A free 20-minute look at what breaks at launch and what it costs to ship.

THE DIAGNOSIS

The Failure Modes We See Most

If your Bolt project is stuck, it is almost certainly one of these. Read the one that sounds like yours. The fix is usually smaller than it feels.

Edits get truncated as the app grows

Early on, every prompt lands cleanly. Then the project gets bigger, and changes start arriving half-finished: a file cut off mid-function, an import that points nowhere, a feature that works only until the next edit touches the same file.

AI models can only hold so much of a project in view at once. As your codebase outgrows that window, each change is made with less of the full picture, and the odds of a truncated or conflicting edit go up with every feature you add.

What actually fixes it: Move the project into a normal development setup where changes are reviewed as diffs, tested, and committed, so no edit can silently cut a file in half again.

It works in the preview but breaks when deployed

The in-browser preview runs perfectly. Deployed to a real host, the app greets you with blank pages, failed API calls, or CORS errors.

The preview is a forgiving environment that papers over things a real host will not: environment variables that were never set on the hosting side, API keys exposed in frontend code that should live on a server, and framework features that behave differently in a production build than in the preview.

What actually fixes it: Set up a proper production environment: server-side secrets, correct build configuration, and a checklist pass over every third-party integration against the deployed URL.

Your Supabase database is wide open, or locked shut

Many Bolt apps use Supabase, and the connection itself usually works. The part that gets skipped is Row Level Security: the rules that say who may read and write which rows.

Without those rules, the failure comes in one of two flavors: either any visitor with your app's public key can read data that should be private, or someone enables security late and the app starts throwing permission errors everywhere. The first is dangerous, the second just looks broken. Both are the same missing policy work.

What actually fixes it: Write proper row-level security policies for every table, verify them with tests that try to access other users' data, and move anything sensitive behind server-side calls.

Auth works, until it doesn't

Sign-up and login work in the demo. Then real users hit the edges: a confirmation link that redirects to localhost, a session that quietly expires and leaves the app half-logged-in, a password reset that was never finished, protected pages that are only protected in the browser.

Auth is the classic 'looks done at 90%' feature. The visible part is a login form, but most of the real work is in redirect URLs, session refresh, and server-side route protection.

What actually fixes it: Audit the full auth flow end to end on the deployed app: every redirect, every expiry, every protected route enforced on the server. Then finish the flows that were only started.

The last 20%: the part between demo and dependable

The features exist. What's missing is the connective tissue: loading and error states, input validation, emails that actually arrive, a mobile layout that holds up, and any way of knowing when something breaks in production.

This is not one missing feature. It is the accumulation of small, unglamorous work that AI tools skip because a demo doesn't need it. A business does.

What actually fixes it: A systematic hardening pass: error handling, validation, email deliverability, responsive layouts, and monitoring, worked through as a checklist, not discovered by your users.

To be clear: Bolt is genuinely good at what it does. Standing up a working full-stack app in the browser in an afternoon is remarkable. The patterns below are not Bolt failing. They are what the last stretch of any software project looks like. We finish what Bolt starts.

WHAT WE DO

Your Bolt app, production-grade

It works in the demo. Real users find the rest. We finish the parts a demo never needed.

Auth

Login, roles and password reset that hold up on the server, not only in the browser.

Payments

Checkout, webhooks and failed-payment handling, so money and records agree.

Integrations

Email, your store, your CRM and other APIs, with retries and alerts when a call fails.

Data

A real database with backups, a clean data model and a safe way to change it.

Security

Access rules on every table and endpoint, secrets kept off the frontend, and a pass that tries to break in.

Hosting

A production environment, your own domain, monitoring, and deploys you can repeat.

Built on Firebase? Good.

Many AI-built apps run on Firebase. We run Firebase apps in production for clients, so we know where prototypes on it tend to break.

Security rules left open. Auth flows that skip the edge cases. Cloud Functions with no retries or logging. Queries that get slow and costly once real data arrives.

We fix those in place when Firebase is the right home for your app, and tell you plainly when it isn't.

Then we hand it over, or we keep running it

We hand it over

You get the code in your repository, the hosting set up in your accounts, and notes on how it fits together. Your team or your next hire takes it from there.

We keep running it

We watch it, fix what breaks and ship improvements each month on a Co-Build plan. You can still take it in-house later.

See Co-Build plans

HOW WE BUILD

We run our own fleet of AI coding agents. Models from different families review each change, tests run against it, and an engineer who is accountable for the work decides what ships.

See the fleet and a real review

Not sure what breaks at launch?

A free 20-minute look at what breaks at launch and what it costs to ship.

Book a free 20-min review

Want the long read first? Why your Replit or Bolt app is stuck at 70%, and what finishing takes.

The $500 Production Readiness Audit, credited 100% toward the build

Send us your project and we tell you what is actually broken, where the security gaps are, and what production-ready costs, in fixed price bands, with a 72h turnaround. The fee is refundable until the kickoff call. If you go ahead with us, every dollar is credited toward the build.

Send my Bolt project

$500. Credited in full. Refundable until kickoff.

Starts with a free working preview. No payment needed to see your app running.

Built with a different tool?

Or start from the main From Prototype to Production page. It covers every tool, including Cursor and Firebase projects.